1
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Tang L, Shen C, Hao S, Dong K. A Type of Chiral C 2-Symmetric Arylthiol Catalyst for Highly Enantioselective Anti-Markovnikov Hydroamination. J Am Chem Soc 2024. [PMID: 38808533 DOI: 10.1021/jacs.4c04596] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/30/2024]
Abstract
The development of chiral hydrogen donor catalysts is fundamental in the expansion and innovation of asymmetric organocatalyzed reactions via an enantioselective hydrogen atom transfer (HAT) process. Herein, an unprecedented type of chiral C2-symmetric arylthiol catalysts derived from readily available enantiomeric lactate ester was developed. With these catalysts, an asymmetric anti-Markovnikov alkene hydroamination-cyclization reaction was established, affording a variety of pharmaceutically interesting 3-substituted piperidines with moderate to high enantioselectivity. Results of the designed control experiments and theoretical computation rationalized the origin of stereocontrol and disclosed the spatial effect of the moiety of chiral thiols on the enantioselectivity. We believed the facile synthesis, flexible tunability, and effective enantioselectivity-controlling capability of these catalysts would shed light on the development of versatile chiral HAT catalysts and related asymmetric reactions.
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Affiliation(s)
- Lin Tang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, State Key Laboratory of Petroleum Molecular & Process Engineering, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, China
| | - Chaoren Shen
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, State Key Laboratory of Petroleum Molecular & Process Engineering, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, China
| | - Shaoyu Hao
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, State Key Laboratory of Petroleum Molecular & Process Engineering, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, China
| | - Kaiwu Dong
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, State Key Laboratory of Petroleum Molecular & Process Engineering, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, China
- Chang-Kung Chuang Institute, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, China
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2
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Puerta Lombardi BM, Faas MR, West D, Suvinen RA, Tuononen HM, Roesler R. An isolable, chelating bis[cyclic (alkyl)(amino)carbene] stabilizes a strongly bent, dicoordinate Ni(0) complex. Nat Commun 2024; 15:3417. [PMID: 38653986 DOI: 10.1038/s41467-024-47036-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Accepted: 03/18/2024] [Indexed: 04/25/2024] Open
Abstract
Chelating ligands have had a tremendous impact in coordination chemistry and catalysis. Notwithstanding their success as strongly σ-donating and π-accepting ligands, to date no chelating bis[cyclic (alkyl)(amino)carbenes] have been reported. Herein, we describe a chelating, C2-symmetric bis[cyclic (alkyl)(amino)carbene] ligand, which was isolated as a racemic mixture. The isolation and structural characterization of its isostructural, pseudotetrahedral complexes with iron, cobalt, nickel, and zinc dihalides featuring eight-membered metallacycles demonstrates the binding ability of the bis(carbene). Reduction of the nickel(II) dibromide with potassium graphite produces a dicoordinate nickel(0) complex that features one of the narrowest angles measured in any unsupported dicoordinate transition metal complexes.
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Affiliation(s)
| | - Morgan R Faas
- Department of Chemistry, University of Calgary, 2500 University Drive NW, Calgary, AB, Canada
| | - Daniel West
- Department of Chemistry, University of Calgary, 2500 University Drive NW, Calgary, AB, Canada
| | - Roope A Suvinen
- Department of Chemistry, NanoScience Centre, University of Jyvӓskylӓ, Jyvӓskylӓ, Finland
| | - Heikki M Tuononen
- Department of Chemistry, NanoScience Centre, University of Jyvӓskylӓ, Jyvӓskylӓ, Finland.
| | - Roland Roesler
- Department of Chemistry, University of Calgary, 2500 University Drive NW, Calgary, AB, Canada.
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3
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Bhattacharya T, Ghosh S, Dutta S, Guin S, Ghosh A, Ge H, Sunoj RB, Maiti D. Combinatorial Ligand Assisted Simultaneous Control of Axial and Central Chirality in Highly Stereoselective C-H Allylation. Angew Chem Int Ed Engl 2024; 63:e202310112. [PMID: 37997014 DOI: 10.1002/anie.202310112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2023] [Revised: 11/23/2023] [Accepted: 11/23/2023] [Indexed: 11/25/2023]
Abstract
The significance of stereoselective C-H bond functionalization thrives on its direct application potential to pharmaceuticals or complex chiral molecule synthesis. Complication arises when there are multiple stereogenic elements such as a center and an axis of chirality to control. Over the years cooperative assistance of multiple chiral ligands has been applied to control only chiral centers. In this work, we harness the essence of cooperative ligand approach to control two different stereogenic elements in the same molecule by atroposelective allylation to synthesize axially chiral biaryls from its racemic precursor. The crucial roles played by chiral phosphoric acid and chiral amino acid ligand in concert helped us to obtain one major stereoisomer out of four distinct possibilities.
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Affiliation(s)
- Trisha Bhattacharya
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai-, 400076, India
| | - Supratim Ghosh
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai-, 400076, India
| | - Subhabrata Dutta
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai-, 400076, India
| | - Srimanta Guin
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai-, 400076, India
| | - Animesh Ghosh
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai-, 400076, India
| | - Haibo Ge
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, TX 79409-1061, USA
| | - Raghavan B Sunoj
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai-, 400076, India
| | - Debabrata Maiti
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai-, 400076, India
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4
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Liu X, Tomita K, Konishi A, Yasuda M. Cage-Shaped Phosphites Having C 3 -Symmetric Chiral Environment: Steric Control of Lewis Basicity and Application as Chiral Ligands in Rhodium-Catalyzed Conjugate Additions. Chemistry 2023; 29:e202302611. [PMID: 37666793 DOI: 10.1002/chem.202302611] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Revised: 08/31/2023] [Accepted: 09/04/2023] [Indexed: 09/06/2023]
Abstract
Designing chiral ligands with an axial symmetry higher than C2 -rotational symmetry is one of the most crucial approaches to improving enantioselectivity in asymmetric synthesis. Herein, C3 -symmetric chiral cage-shaped phosphites are reported. Their Lewis basicity and chiral environment are precisely controlled by the tethered group. The cage-shaped phosphites successfully worked as chiral ligands in Rh-catalyzed asymmetric conjugate additions, realizing acceptable yields with excellent enantioselectivity, and were used to synthesize a pharmacologically important molecule.
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Affiliation(s)
- Xiao Liu
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Kazuma Tomita
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Akihito Konishi
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka, 565-0871, Japan
- Innovative Catalysis Science Division, Institute for Open and Transdisciplinary Research Initiatives (ICS-OTRI), Osaka University, Suita, Osaka, 565-0871, Japan
| | - Makoto Yasuda
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka, 565-0871, Japan
- Innovative Catalysis Science Division, Institute for Open and Transdisciplinary Research Initiatives (ICS-OTRI), Osaka University, Suita, Osaka, 565-0871, Japan
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5
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Dhimba G, Muller A, Lammertsma K. Chiral-at-Metal Racemization Unraveled for MX 2 (a-chel) 2 by means of a Computational Analysis of MoO 2 (acnac) 2. Chemistry 2023; 29:e202302516. [PMID: 37730887 DOI: 10.1002/chem.202302516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 09/13/2023] [Accepted: 09/14/2023] [Indexed: 09/22/2023]
Abstract
Octahedral chiral-at-metal complexes MX2 (a-chel)2 (a-chel=asymmetric chelate) can rearrange their ligands by four mechanisms known as the Bailar (B), Ray-Dutt (RD), Conte-Hippler (CH), and Dhimba-Muller-Lammertsma (DML) twists. Racemization involves their interconnections, which were computed for MoO2 (acnac)2 (acnac=β-ketoiminate) using density functional theory at ωB97x-D with the 6-31G(d,p) and 6-311G(2d,p) basis sets and LANL2DZ for molybdenum. Racemizing the cis(NN) isomer, being the global energy minimum with trans oriented imine groups, is a three step process (DML-CH-DML) that requires 17.4 kcal/mol, while all three cis isomers (cis(NN), cis(NO), and cis(OO)) interconvert at ≤17.9 kcal/mol. The B and RD twists are energetically not competitive and neither are the trans isomers. The interconnection of all enantiomeric minima and transition structures is summarized in a graph that also visualizes valley ridge inflection points for two of the three CH twists. Geometrical features of the minima and twists are given. Lastly, the influence of N-substitution on the favored racemization pathway is evaluated. The present comprehensive study serves as a template for designing chiral-at-metal MX2 (a-chel)2 catalysts that may retain their chiral integrity.
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Affiliation(s)
- George Dhimba
- Department of Chemical Sciences, University of Johannesburg, Auckland Park, Johannesburg, 2006, South Africa
| | - Alfred Muller
- Department of Chemical Sciences, University of Johannesburg, Auckland Park, Johannesburg, 2006, South Africa
| | - Koop Lammertsma
- Department of Chemical Sciences, University of Johannesburg, Auckland Park, Johannesburg, 2006, South Africa
- Department of Chemistry and Pharmaceutical Sciences, Faculty of Sciences Vrije Universiteit Amsterdam, De Boelelaan 1108, 1081 HZ, Amsterdam, The Netherlands
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6
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Huynh MT, Buchanan E, Chirayil S, Adebesin AM, Kovacs Z. StereoPHIP: Stereoselective Parahydrogen-Induced Polarization. Angew Chem Int Ed Engl 2023; 62:e202311669. [PMID: 37714818 PMCID: PMC10842948 DOI: 10.1002/anie.202311669] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Revised: 09/14/2023] [Accepted: 09/15/2023] [Indexed: 09/17/2023]
Abstract
Parahydrogen-induced polarization (PHIP) followed by polarization transfer to 13 C is a rapidly developing technique for the generation of 13 C-hyperpolarized substrates. Chirality plays an essential role in living systems and differential metabolism of enantiomeric pairs of metabolic substrates is well documented. Inspired by asymmetric hydrogenation, here we report stereoPHIP, which involves the addition of parahydrogen to a prochiral substrate with a chiral catalyst followed by polarization transfer to 13 C spins. We demonstrate that parahydrogen could be rapidly added to the prochiral precursor to both enantiomers of lactic acid (D and L), with both the (R,R) and (S,S) enantiomers of a chiral rhodium(I) catalyst to afford highly 13 C-hyperpolarized (over 20 %) L- and D-lactate ester derivatives, respectively, with excellent stereoselectivity. We also show that the hyperpolarized 1 H signal decays obtained with the (R,R) and (S,S) catalysts were markedly different. StereoPHIP expands the scope of conventional PHIP to the production of 13 C hyperpolarized chiral substrates with high stereoselectivity.
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Affiliation(s)
- Mai T Huynh
- Advanced Imaging Research Center, University of Texas Southwestern Medical Center, 5323 Harry Hines Blvd., Dallas, TX 75390, USA
| | - Emily Buchanan
- Advanced Imaging Research Center, University of Texas Southwestern Medical Center, 5323 Harry Hines Blvd., Dallas, TX 75390, USA
| | - Sara Chirayil
- Advanced Imaging Research Center, University of Texas Southwestern Medical Center, 5323 Harry Hines Blvd., Dallas, TX 75390, USA
| | - Adeniyi M Adebesin
- Department Biochemistry, University of Texas Southwestern Medical Center, 5323 Harry Hines Blvd., Dallas, TX 75390, USA
| | - Zoltan Kovacs
- Advanced Imaging Research Center, University of Texas Southwestern Medical Center, 5323 Harry Hines Blvd., Dallas, TX 75390, USA
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7
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Ovian JM, Vojáčková P, Jacobsen EN. Enantioselective transition-metal catalysis via an anion-binding approach. Nature 2023; 616:84-89. [PMID: 36787801 PMCID: PMC10388379 DOI: 10.1038/s41586-023-05804-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Accepted: 02/06/2023] [Indexed: 02/16/2023]
Abstract
Asymmetric transition-metal catalysis represents a powerful strategy for accessing enantiomerically enriched molecules1-3. The classical strategy for inducing enantioselectivity with transition-metal catalysts relies on direct complexation of chiral ligands to produce a sterically constrained reactive metal site that allows formation of the major product enantiomer while effectively inhibiting the pathway to the minor enantiomer through steric repulsion4. The chiral-ligand strategy has proven applicable to a wide variety of highly enantioselective transition-metal-catalysed reactions, but important scenarios exist that impose limits to its successful adaptation. Here, we report a new approach for inducing enantioselectivity in transition-metal-catalysed reactions that relies on neutral hydrogen-bond donors (HBDs)5,6 that bind anions of cationic transition-metal complexes to achieve enantiocontrol and rate enhancement through ion pairing together with other non-covalent interactions7-9. A cooperative anion-binding effect of a chiral bis-thiourea HBD is demonstrated to lead to high enantioselectivity (up to 99% enantiomeric excess) in intramolecular ruthenium-catalysed propargylic substitution reactions10. Experimental and computational mechanistic studies show the attractive interactions between electron-deficient arene components of the HBD and the metal complex that underlie enantioinduction and the acceleration effect.
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Affiliation(s)
- John M Ovian
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA, USA
| | - Petra Vojáčková
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA, USA
| | - Eric N Jacobsen
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA, USA.
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8
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Postolache R, Pérez JM, Castiñeira Reis M, Ge L, Sinnema EG, Harutyunyan SR. Manganese(I)-Catalyzed Asymmetric Hydrophosphination of α,β-Unsaturated Carbonyl Derivatives. Org Lett 2023; 25:1611-1615. [PMID: 36892214 PMCID: PMC10028696 DOI: 10.1021/acs.orglett.2c04256] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/10/2023]
Abstract
Here we report catalytic asymmetric hydrophosphination of α,β-unsaturated carbonyl derivatives using a chiral Mn(I) complex as a catalyst. Through H-P bond activation, various phosphine-containing chiral products can be accessed via hydrophosphination of various ketone-, ester-, and carboxamide-based Michael acceptors.
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Affiliation(s)
- Roxana Postolache
- Stratingh Institute for Chemistry, University of Groningen, 9747 AG Groningen, The Netherlands
| | - Juana M Pérez
- Stratingh Institute for Chemistry, University of Groningen, 9747 AG Groningen, The Netherlands
| | - Marta Castiñeira Reis
- Stratingh Institute for Chemistry, University of Groningen, 9747 AG Groningen, The Netherlands
| | - Luo Ge
- Stratingh Institute for Chemistry, University of Groningen, 9747 AG Groningen, The Netherlands
| | - Esther G Sinnema
- Stratingh Institute for Chemistry, University of Groningen, 9747 AG Groningen, The Netherlands
| | - Syuzanna R Harutyunyan
- Stratingh Institute for Chemistry, University of Groningen, 9747 AG Groningen, The Netherlands
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9
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Biosca M, de la Cruz-Sánchez P, Faiges J, Margalef J, Salomó E, Riera A, Verdaguer X, Ferré J, Maseras F, Besora M, Pàmies O, Diéguez M. P-Stereogenic Ir-MaxPHOX: A Step toward Privileged Catalysts for Asymmetric Hydrogenation of Nonchelating Olefins. ACS Catal 2023; 13:3020-3035. [PMID: 36910869 PMCID: PMC9990153 DOI: 10.1021/acscatal.2c05579] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 01/17/2023] [Indexed: 02/16/2023]
Abstract
The Ir-MaxPHOX-type catalysts demonstrated high catalytic performance in the hydrogenation of a wide range of nonchelating olefins with different geometries, substitution patterns, and degrees of functionalization. These air-stable and readily available catalysts have been successfully applied in the asymmetric hydrogenation of di-, tri-, and tetrasubstituted olefins (ee's up to 99%). The combination of theoretical calculations and deuterium labeling experiments led to the uncovering of the factors responsible for the enantioselectivity observed in the reaction, allowing the rationalization of the most suitable substrates for these Ir-catalysts.
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Affiliation(s)
- Maria Biosca
- Departament de Química Física i Inorgànica, Universitat Rovira i Virgili, C/Marcel·lí Domingo, 1, 43007 Tarragona, Spain
| | - Pol de la Cruz-Sánchez
- Departament de Química Física i Inorgànica, Universitat Rovira i Virgili, C/Marcel·lí Domingo, 1, 43007 Tarragona, Spain
| | - Jorge Faiges
- Departament de Química Física i Inorgànica, Universitat Rovira i Virgili, C/Marcel·lí Domingo, 1, 43007 Tarragona, Spain
| | - Jèssica Margalef
- Departament de Química Física i Inorgànica, Universitat Rovira i Virgili, C/Marcel·lí Domingo, 1, 43007 Tarragona, Spain
| | - Ernest Salomó
- Institute for Research in Biomedicine (IRB Barcelona), The Barcelona Institute of Science and Technology (BIST), C/Baldiri Reixac, 10, 08028 Barcelona, Spain
| | - Antoni Riera
- Institute for Research in Biomedicine (IRB Barcelona), The Barcelona Institute of Science and Technology (BIST), C/Baldiri Reixac, 10, 08028 Barcelona, Spain.,Departament de Química Inorgànica i Orgànica, Secció Química Orgànica, Universitat de Barcelona, Martí i Franquès 1, 08028 Barcelona, Spain
| | - Xavier Verdaguer
- Institute for Research in Biomedicine (IRB Barcelona), The Barcelona Institute of Science and Technology (BIST), C/Baldiri Reixac, 10, 08028 Barcelona, Spain.,Departament de Química Inorgànica i Orgànica, Secció Química Orgànica, Universitat de Barcelona, Martí i Franquès 1, 08028 Barcelona, Spain
| | - Joan Ferré
- Departament de Química Analítica i Química Orgànica, Universitat Rovira i Virgili, C/Marcel·lí Domingo, 1, 43007 Tarragona, Spain
| | - Feliu Maseras
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, Avenida Països Catalans 16, 43007 Tarragona, Spain
| | - Maria Besora
- Departament de Química Física i Inorgànica, Universitat Rovira i Virgili, C/Marcel·lí Domingo, 1, 43007 Tarragona, Spain
| | - Oscar Pàmies
- Departament de Química Física i Inorgànica, Universitat Rovira i Virgili, C/Marcel·lí Domingo, 1, 43007 Tarragona, Spain
| | - Montserrat Diéguez
- Departament de Química Física i Inorgànica, Universitat Rovira i Virgili, C/Marcel·lí Domingo, 1, 43007 Tarragona, Spain
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10
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Krenn M, Ai Q, Barthel S, Carson N, Frei A, Frey NC, Friederich P, Gaudin T, Gayle AA, Jablonka KM, Lameiro RF, Lemm D, Lo A, Moosavi SM, Nápoles-Duarte JM, Nigam A, Pollice R, Rajan K, Schatzschneider U, Schwaller P, Skreta M, Smit B, Strieth-Kalthoff F, Sun C, Tom G, Falk von Rudorff G, Wang A, White AD, Young A, Yu R, Aspuru-Guzik A. SELFIES and the future of molecular string representations. PATTERNS (NEW YORK, N.Y.) 2022; 3:100588. [PMID: 36277819 PMCID: PMC9583042 DOI: 10.1016/j.patter.2022.100588] [Citation(s) in RCA: 30] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Artificial intelligence (AI) and machine learning (ML) are expanding in popularity for broad applications to challenging tasks in chemistry and materials science. Examples include the prediction of properties, the discovery of new reaction pathways, or the design of new molecules. The machine needs to read and write fluently in a chemical language for each of these tasks. Strings are a common tool to represent molecular graphs, and the most popular molecular string representation, Smiles, has powered cheminformatics since the late 1980s. However, in the context of AI and ML in chemistry, Smiles has several shortcomings-most pertinently, most combinations of symbols lead to invalid results with no valid chemical interpretation. To overcome this issue, a new language for molecules was introduced in 2020 that guarantees 100% robustness: SELF-referencing embedded string (Selfies). Selfies has since simplified and enabled numerous new applications in chemistry. In this perspective, we look to the future and discuss molecular string representations, along with their respective opportunities and challenges. We propose 16 concrete future projects for robust molecular representations. These involve the extension toward new chemical domains, exciting questions at the interface of AI and robust languages, and interpretability for both humans and machines. We hope that these proposals will inspire several follow-up works exploiting the full potential of molecular string representations for the future of AI in chemistry and materials science.
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Affiliation(s)
- Mario Krenn
- Max Planck Institute for the Science of Light (MPL), Erlangen, Germany,Corresponding author
| | - Qianxiang Ai
- Department of Chemistry, Fordham University, The Bronx, NY, USA
| | - Senja Barthel
- Department of Mathematics, Vrije Universiteit Amsterdam, Amsterdam, the Netherlands
| | - Nessa Carson
- Syngenta Jealott’s Hill International Research Centre, Bracknell, Berkshire, UK
| | - Angelo Frei
- Department of Chemistry, Imperial College London, Molecular Sciences Research Hub, White City Campus, Wood Lane, London, UK
| | - Nathan C. Frey
- Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Pascal Friederich
- Institute of Theoretical Informatics, Karlsruhe Institute of Technology, Karlsruhe, Germany,Institute of Nanotechnology, Karlsruhe Institute of Technology, Eggenstein-Leopoldshafen, Germany
| | - Théophile Gaudin
- Department of Computer Science, University of Toronto, Toronto, ON, Canada,IBM Research Europe, Zürich, Switzerland
| | | | - Kevin Maik Jablonka
- Laboratory of Molecular Simulation (LSMO), Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne (EPFL), Sion, Valais, Switzerland
| | - Rafael F. Lameiro
- Medicinal and Biological Chemistry Group, São Carlos Institute of Chemistry, University of São Paulo, São Paulo, Brazil
| | - Dominik Lemm
- Faculty of Physics, University of Vienna, Vienna, Austria
| | - Alston Lo
- Department of Computer Science, University of Toronto, Toronto, ON, Canada
| | - Seyed Mohamad Moosavi
- Department of Mathematics and Computer Science, Freie Universität Berlin, Berlin, Germany
| | | | - AkshatKumar Nigam
- Department of Computer Science, Stanford University, Stanford, CA, USA
| | - Robert Pollice
- Department of Computer Science, University of Toronto, Toronto, ON, Canada,Chemical Physics Theory Group, Department of Chemistry, University of Toronto, Toronto, ON, Canada
| | - Kohulan Rajan
- Institute for Inorganic and Analytical Chemistry, Friedrich-Schiller Universität Jena, Jena, Germany
| | - Ulrich Schatzschneider
- Institut für Anorganische Chemie, Julius-Maximilians-Universität Würzburg, Würzburg, Germany
| | - Philippe Schwaller
- IBM Research Europe, Zürich, Switzerland,Laboratory of Artificial Chemical Intelligence (LIAC), Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland,National Centre of Competence in Research (NCCR) Catalysis, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
| | - Marta Skreta
- Department of Computer Science, University of Toronto, Toronto, ON, Canada,Vector Institute for Artificial Intelligence, Toronto, ON, Canada
| | - Berend Smit
- Laboratory of Molecular Simulation (LSMO), Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne (EPFL), Sion, Valais, Switzerland
| | - Felix Strieth-Kalthoff
- Chemical Physics Theory Group, Department of Chemistry, University of Toronto, Toronto, ON, Canada
| | - Chong Sun
- Department of Computer Science, University of Toronto, Toronto, ON, Canada
| | - Gary Tom
- Department of Computer Science, University of Toronto, Toronto, ON, Canada,Chemical Physics Theory Group, Department of Chemistry, University of Toronto, Toronto, ON, Canada
| | | | - Andrew Wang
- Chemical Physics Theory Group, Department of Chemistry, University of Toronto, Toronto, ON, Canada,Solar Fuels Group, Department of Chemistry, University of Toronto, Toronto, ON, Canada
| | - Andrew D. White
- Department of Chemical Engineering, University of Rochester, Rochester, NY, USA
| | - Adamo Young
- Department of Computer Science, University of Toronto, Toronto, ON, Canada,Vector Institute for Artificial Intelligence, Toronto, ON, Canada
| | - Rose Yu
- Department of Computer Science and Engineering, University of California, San Diego, La Jolla, CA, USA
| | - Alán Aspuru-Guzik
- Department of Computer Science, University of Toronto, Toronto, ON, Canada,Chemical Physics Theory Group, Department of Chemistry, University of Toronto, Toronto, ON, Canada,Vector Institute for Artificial Intelligence, Toronto, ON, Canada,Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto, ON, Canada,Department of Materials Science, University of Toronto, Toronto, ON, Canada,Canadian Institute for Advanced Research (CIFAR) Lebovic Fellow, Toronto, ON, Canada,Corresponding author
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11
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Bibi R, Khan IU, Hassan A. Steric evaluation of Pyox ligands for asymmetric intermolecular Heck-Matsuda reaction. Tetrahedron Lett 2022. [DOI: 10.1016/j.tetlet.2022.154204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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12
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Balkaner O, Sarıoğulları DI, Uslu A. A synthetic strategy of P-stereogenic ligands for catalysis: Examples based on cyclotriphosphazenes. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.132834] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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13
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Yang L, Zhu L, Zhang S, Hong X. Machine Learning Prediction of
Structure‐Performance
Relationship in Organic Synthesis. CHINESE J CHEM 2022. [DOI: 10.1002/cjoc.202200039] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Li‐Cheng Yang
- Center of Chemistry for Frontier Technologies, Department of Chemistry, State Key Laboratory of Clean Energy Utilization, Zhejiang University Hangzhou Zhejiang 310027 China
| | - Lu‐Jing Zhu
- Center of Chemistry for Frontier Technologies, Department of Chemistry, State Key Laboratory of Clean Energy Utilization, Zhejiang University Hangzhou Zhejiang 310027 China
| | - Shuo‐Qing Zhang
- Center of Chemistry for Frontier Technologies, Department of Chemistry, State Key Laboratory of Clean Energy Utilization, Zhejiang University Hangzhou Zhejiang 310027 China
| | - Xin Hong
- Center of Chemistry for Frontier Technologies, Department of Chemistry, State Key Laboratory of Clean Energy Utilization, Zhejiang University Hangzhou Zhejiang 310027 China
- Beijing National Laboratory for Molecular Sciences, Zhongguancun North First Street NO. 2 Beijing 100190 China
- Key Laboratory of Precise Synthesis of Functional Molecules of Zhejiang Province, School of Science, Westlake University, 18 Shilongshan Road Hangzhou Zhejiang 310024 China
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14
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Xu G, Gao P, Colacot TJ. Tunable Unsymmetrical Ferrocene Ligands Bearing a Bulky Di-1-adamantylphosphino Motif for Many Kinds of C sp2–C sp3 Couplings. ACS Catal 2022. [DOI: 10.1021/acscatal.2c00352] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Guolin Xu
- Research and Development, Life Science Chemistry, MilliporeSigma, 6000 N. Teutonia Avenue, Milwaukee, Wisconsin 53209, United States
| | - Peng Gao
- Research and Development, Life Science Chemistry, MilliporeSigma, 6000 N. Teutonia Avenue, Milwaukee, Wisconsin 53209, United States
| | - Thomas J. Colacot
- Research and Development, Life Science Chemistry, MilliporeSigma, 6000 N. Teutonia Avenue, Milwaukee, Wisconsin 53209, United States
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15
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Guo R, Sang J, Xiao H, Li J, Zhang G. Development of Novel
Phosphino‐Oxazoline
Ligands and Their Application in Asymmetric Alkynlylation of Benzylic Halides. CHINESE J CHEM 2022. [DOI: 10.1002/cjoc.202200074] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Rui Guo
- State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry, , Center for Excellence in Molecular Synthesis, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road Shanghai 200032 P. R. China
| | - Jiale Sang
- State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry, , Center for Excellence in Molecular Synthesis, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road Shanghai 200032 P. R. China
| | - Haijing Xiao
- CCNU‐uOttawa Joint Research Centre, Key Laboratory of Pesticides & Chemical Biology Ministry of Education, International Joint Research Center for Intelligent Biosensing Technology and Health College of Chemistry, , Central China Normal University (CCNU), 152 Luoyu Road, Wuhan Hubei 430079 P. R. China
| | - Junxia Li
- CCNU‐uOttawa Joint Research Centre, Key Laboratory of Pesticides & Chemical Biology Ministry of Education, International Joint Research Center for Intelligent Biosensing Technology and Health College of Chemistry, , Central China Normal University (CCNU), 152 Luoyu Road, Wuhan Hubei 430079 P. R. China
| | - Guozhu Zhang
- State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry, , Center for Excellence in Molecular Synthesis, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road Shanghai 200032 P. R. China
- CCNU‐uOttawa Joint Research Centre, Key Laboratory of Pesticides & Chemical Biology Ministry of Education, International Joint Research Center for Intelligent Biosensing Technology and Health College of Chemistry, , Central China Normal University (CCNU), 152 Luoyu Road, Wuhan Hubei 430079 P. R. China
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16
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Ge L, Harutyunyan SR. Manganese(i)-catalyzed access to 1,2-bisphosphine ligands. Chem Sci 2022; 13:1307-1312. [PMID: 35222914 PMCID: PMC8809422 DOI: 10.1039/d1sc06694c] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Accepted: 01/12/2022] [Indexed: 12/11/2022] Open
Abstract
Chiral bisphosphine ligands are of key importance in transition-metal-catalyzed asymmetric synthesis of optically active products. However, the transition metals typically used are scarce and expensive noble metals, while the synthetic routes to access chiral phosphine ligands are cumbersome and lengthy. To make homogeneous catalysis more sustainable, progress must be made on both fronts. Herein, we present the first catalytic asymmetric hydrophosphination of α,β-unsaturated phosphine oxides in the presence of a chiral complex of earth-abundant manganese(i). This catalytic system offers a short two-step, one-pot synthetic sequence to easily accessible and structurally tunable chiral 1,2-bisphosphines in high yields and enantiomeric excess. The resulting bidentate phosphine ligands were successfully used in asymmetric catalysis as part of earth-abundant metal based organometallic catalysts. Chiral bisphosphine ligands are of key importance in transition-metal-catalyzed asymmetric synthesis of optically active products. Mn(i)-catalyzed hydrophosphination offers a two-step, one-pot synthetic sequence to access chiral 1,2-bisphosphines.![]()
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Affiliation(s)
- Luo Ge
- Stratingh Institute for Chemistry, University of Groningen Institution Nijenborgh 4 9747 AG Groningen The Netherlands
| | - Syuzanna R Harutyunyan
- Stratingh Institute for Chemistry, University of Groningen Institution Nijenborgh 4 9747 AG Groningen The Netherlands
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17
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Tsutsumi R, Taguchi R, Yamanaka M. Chiral Bipyridine Ligand with Flexible Molecular Recognition Site: Development and Application to Copper‐Catalyzed Asymmetric Borylation of α,β‐Unsaturated Ketones. ChemCatChem 2022. [DOI: 10.1002/cctc.202101278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Ryosuke Tsutsumi
- Department of Chemistry and Research Center for Smart Molecules Faculty of Science Rikkyo University 3-34-1 Nishi-Ikebukuro Toshima-ku, Tokyo 171-8501 Japan
| | - Rika Taguchi
- Department of Chemistry and Research Center for Smart Molecules Faculty of Science Rikkyo University 3-34-1 Nishi-Ikebukuro Toshima-ku, Tokyo 171-8501 Japan
| | - Masahiro Yamanaka
- Department of Chemistry and Research Center for Smart Molecules Faculty of Science Rikkyo University 3-34-1 Nishi-Ikebukuro Toshima-ku, Tokyo 171-8501 Japan
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18
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Aponick A, Dahiya G, Abboud KA. Tuning StackPhim Ligands: Applications in Enantioselective Borylation and Alkynylation. SYNTHESIS-STUTTGART 2022. [DOI: 10.1055/a-1730-2473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
AbstractHere we present a new stack ligand with a modified imidazoline backbone prepared from cyclohexanediamine. This new stack ligand, Cy-StackPhim, has been found to complement the parent StackPhim ligand in an enantioselective borylation reaction. Additionally, a correlation between the nature of substituents on the imidazoline ring and the substituents on the electrophile is also discussed.
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Affiliation(s)
- Aaron Aponick
- Center for Heterocyclic Compounds, Department of Chemistry, University of Florida
| | - Gaurav Dahiya
- Center for Heterocyclic Compounds, Department of Chemistry, University of Florida
| | - Khalil A. Abboud
- Center for X-ray Crystallography, Department of Chemistry, University of Florida
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19
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Yang XX, Yan RJ, Ran GY, Chen C, Yue JF, Yan X, Ouyang Q, Du W, Chen YC. π-Lewis-Base-Catalyzed Asymmetric Vinylogous Umpolung Reactions of Cyclopentadienones and Tropone. Angew Chem Int Ed Engl 2021; 60:26762-26768. [PMID: 34617655 DOI: 10.1002/anie.202111708] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2021] [Indexed: 12/21/2022]
Abstract
We disclose that the carbonates of 4-hydroxy-2-cyclopentenones can form π-allylpalladium-based 1,2-carbodipoles, which isomerize to interesting η2 -Pd0 -cyclopentadienone complexes. Compared with the labile parent cyclopentadienone, the HOMO energy of the related η2 -complex was significantly raised via the back-bonding of Pd0 as a π-Lewis base, rendering the uncoordinated C=C bond an electron-richer dienophile in inverse-electron-demand aza-Diels-Alder-type reactions with diverse 1-azadienes. The vinylogous (aza)Morita-Baylis-Hillman or cross Rauhut-Currier addition to (imine)carbonyls or activated alkenes, respectively, was also realized to afford chiral [4+2] or [2+2] cycloadducts, respectively, after trapping the re-generated π-allylpalladium species. New C1 -symmetric ligands from simple chiral sources were developed, exhibiting high stereoselectivity even with racemic substrates via an unusual dynamic kinetic resolution process. Besides, tropone could be similarly activated by a Pd0 complex.
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Affiliation(s)
- Xing-Xing Yang
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Ministry of Education and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu, 610041, China
| | - Ru-Jie Yan
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Ministry of Education and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu, 610041, China
| | - Guang-Yao Ran
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Ministry of Education and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu, 610041, China
| | - Chen Chen
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Ministry of Education and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu, 610041, China
| | - Jing-Fei Yue
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Ministry of Education and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu, 610041, China
| | - Xiao Yan
- College of Pharmacy, Third Military Medical University, Chongqing, 400038, China
| | - Qin Ouyang
- College of Pharmacy, Third Military Medical University, Chongqing, 400038, China
| | - Wei Du
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Ministry of Education and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu, 610041, China
| | - Ying-Chun Chen
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Ministry of Education and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu, 610041, China.,College of Pharmacy, Third Military Medical University, Chongqing, 400038, China
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20
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Yang X, Yan R, Ran G, Chen C, Yue J, Yan X, Ouyang Q, Du W, Chen Y. π‐Lewis‐Base‐Catalyzed Asymmetric Vinylogous Umpolung Reactions of Cyclopentadienones and Tropone. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202111708] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Xing‐Xing Yang
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Ministry of Education and Sichuan Research Center for Drug Precision Industrial Technology West China School of Pharmacy Sichuan University Chengdu 610041 China
| | - Ru‐Jie Yan
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Ministry of Education and Sichuan Research Center for Drug Precision Industrial Technology West China School of Pharmacy Sichuan University Chengdu 610041 China
| | - Guang‐Yao Ran
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Ministry of Education and Sichuan Research Center for Drug Precision Industrial Technology West China School of Pharmacy Sichuan University Chengdu 610041 China
| | - Chen Chen
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Ministry of Education and Sichuan Research Center for Drug Precision Industrial Technology West China School of Pharmacy Sichuan University Chengdu 610041 China
| | - Jing‐Fei Yue
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Ministry of Education and Sichuan Research Center for Drug Precision Industrial Technology West China School of Pharmacy Sichuan University Chengdu 610041 China
| | - Xiao Yan
- College of Pharmacy Third Military Medical University Chongqing 400038 China
| | - Qin Ouyang
- College of Pharmacy Third Military Medical University Chongqing 400038 China
| | - Wei Du
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Ministry of Education and Sichuan Research Center for Drug Precision Industrial Technology West China School of Pharmacy Sichuan University Chengdu 610041 China
| | - Ying‐Chun Chen
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Ministry of Education and Sichuan Research Center for Drug Precision Industrial Technology West China School of Pharmacy Sichuan University Chengdu 610041 China
- College of Pharmacy Third Military Medical University Chongqing 400038 China
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21
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Pérez JM, Postolache R, Castiñeira Reis M, Sinnema EG, Vargová D, de Vries F, Otten E, Ge L, Harutyunyan SR. Manganese(I)-Catalyzed H-P Bond Activation via Metal-Ligand Cooperation. J Am Chem Soc 2021; 143:20071-20076. [PMID: 34797634 PMCID: PMC8662621 DOI: 10.1021/jacs.1c10756] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
![]()
Here we report that
chiral Mn(I) complexes are capable of H–P
bond activation. This activation mode enables a general method for
the hydrophosphination of internal and terminal α,β-unsaturated
nitriles. Metal−ligand cooperation, a strategy previously not
considered for catalytic H–P bond activation, is at the base
of the mechanistic action of the Mn(I)-based catalyst. Our computational
studies support a stepwise mechanism for the hydrophosphination and
provide insight into the origin of the enantioselectivity.
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Affiliation(s)
- Juana M Pérez
- Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
| | - Roxana Postolache
- Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
| | - Marta Castiñeira Reis
- Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
| | - Esther G Sinnema
- Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
| | - Denisa Vargová
- Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
| | - Folkert de Vries
- Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
| | - Edwin Otten
- Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
| | - Luo Ge
- Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
| | - Syuzanna R Harutyunyan
- Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
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22
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Maliszewska HK, Arnau Del Valle C, Xia Y, Marín MJ, Waller ZAE, Muñoz MP. Precious metal complexes of bis(pyridyl)allenes: synthesis and catalytic and medicinal applications. Dalton Trans 2021; 50:16739-16750. [PMID: 34761768 DOI: 10.1039/d1dt02929k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The incorporation of donor-type substituents on the allene core opens up the possibility of coordination complexes in which the metal is bonded to the donor groups, with or without interaction with the double bond system. Despite the challenges in the synthesis of such allene-containing metal complexes, their unique 3D environments and dual functionality (allene and metal) could facilitate catalysis and interaction with chemical and biological systems. Bis(pyridyl)allenes are presented here as robust ligands for novel Pd(II), Pt(IV) and Au(III) complexes. Their synthesis, characterisation and first application as catalysts of benchmark reactions for Pd, Pt and Au are presented with interesting reactivity and selectivities. The complexes have also been probed as antimicrobial and anticancer agents with promising activities, and the first studies on their unusual interaction with several DNA structures will open new avenues for research in the area of metallodrugs with new mechanisms of action.
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Affiliation(s)
- Hanna K Maliszewska
- School of Chemistry, University of East Anglia, Norwich Research Park, Norwich, NR4 7TJ, UK.
| | - Carla Arnau Del Valle
- School of Chemistry, University of East Anglia, Norwich Research Park, Norwich, NR4 7TJ, UK.
| | - Ying Xia
- School of Pharmacy, University of East Anglia, Norwich Research Park, Norwich, NR4 7TJ, UK
| | - María J Marín
- School of Chemistry, University of East Anglia, Norwich Research Park, Norwich, NR4 7TJ, UK.
| | - Zoë A E Waller
- School of Pharmacy, University of East Anglia, Norwich Research Park, Norwich, NR4 7TJ, UK.,UCL School of Pharmacy, 29-39 Brunswick Square, London, WC1N 1AX, UK
| | - María Paz Muñoz
- School of Chemistry, University of East Anglia, Norwich Research Park, Norwich, NR4 7TJ, UK.
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23
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Riehl PS, Richardson AD, Sakamoto T, Reid JP, Schindler CS. Origin of enantioselectivity reversal in Lewis acid-catalysed Michael additions relying on the same chiral source. Chem Sci 2021; 12:14133-14142. [PMID: 34760198 PMCID: PMC8565382 DOI: 10.1039/d1sc03741b] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Accepted: 10/04/2021] [Indexed: 01/19/2023] Open
Abstract
Enantiodivergence is an important concept in asymmetric catalysis that enables access to both enantiomers of a product relying on the same chiral source as reagent. This strategy is particularly appealing as an alternate approach when only one enantiomer of the required chiral ligand is readily accessible but both enantiomers of the product are desired. Despite the potential significance, general catalytic methods to effectively reverse enantioselectivity by changing an achiral reaction parameter remain underdeveloped. Herein we report our studies focused on elucidating the origin of metal-controlled enantioselectivity reversal in Lewis acid-catalysed Michael additions. Rigorous experimental and computational investigations reveal that specific Lewis and Brønsted acid interactions between the substrate and ligand change depending on the ionic radius of the metal catalyst, and are key factors responsible for the observed enantiodivergence. This holds potential to further our understanding of and facilitate the design of future enantiodivergent transformations. Enantiodivergence is an important concept in asymmetric catalysis that enables access to both enantiomers of a product relying on the same chiral source as reagent.![]()
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Affiliation(s)
- Paul S Riehl
- Willard Henry Dow Laboratory, Department of Chemistry, University of Michigan 930 North University Avenue Ann Arbor Michigan 48109 USA
| | - Alistair D Richardson
- Willard Henry Dow Laboratory, Department of Chemistry, University of Michigan 930 North University Avenue Ann Arbor Michigan 48109 USA
| | - Tatsuhiro Sakamoto
- Willard Henry Dow Laboratory, Department of Chemistry, University of Michigan 930 North University Avenue Ann Arbor Michigan 48109 USA
| | - Jolene P Reid
- Department of Chemistry, University of British Columbia 2036 Main Mall Vancouver British Columbia V6T 1Z1 Canada
| | - Corinna S Schindler
- Willard Henry Dow Laboratory, Department of Chemistry, University of Michigan 930 North University Avenue Ann Arbor Michigan 48109 USA
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24
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Sen A, Chikkali SH. C 1-Symmetric diphosphorus ligands in metal-catalyzed asymmetric hydrogenation to prepare chiral compounds. Org Biomol Chem 2021; 19:9095-9137. [PMID: 34617539 DOI: 10.1039/d1ob01207j] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Asymmetric hydrogenation has remained an important and challenging research area in industry as well as academia due to its high atom economy and ability to induce chirality. Among several types of ligands, chiral bidentate phosphine ligands have played a pivotal role in developing asymmetric hydrogenation. Although C2-symmetric chiral bidentate phosphine ligands have dominated the field, it has been found that several C1-symmetric ligands are equally effective and, in many cases, have outperformed their C2-symmetric counterparts. This review evaluates the possibility of the use of C1-symmetric diphosphorus ligands in asymmetric hydrogenation to produce chiral compounds. The recent strategies and advances in the application of C1-symmetric diphosphorus ligands in the metal-catalyzed asymmetric hydrogenation of a variety of CC bonds have been summarized. The potential of diphosphorus ligands in asymmetric hydrogenation to produce pharmaceutical intermediates, bioactive molecules, drug molecules, agrochemicals, and fragrances is discussed. Although asymmetric hydrogenation appears to be a problem that has been resolved, a deep dive into the recent literature reveals that there are several challenges that are yet to be addressed. The current asymmetric hydrogenation methods mostly employ precious metals, which are depleting at a fast pace. Therefore, scientific interventions to perform asymmetric hydrogenation using base metals or earth-abundant metals that can compete with established precious metals hold significant potential.
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Affiliation(s)
- Anirban Sen
- Polyolefin Lab, Polymer Science and Engineering Division, CSIR-National Chemical Laboratory, Dr Homi Bhabha Road, Pune 411008, India. .,Academy of Scientific and Innovative Research (AcSIR), Sector 19, Kamla Nehru Nagar, Ghaziabad 201002, U. P., India
| | - Samir H Chikkali
- Polyolefin Lab, Polymer Science and Engineering Division, CSIR-National Chemical Laboratory, Dr Homi Bhabha Road, Pune 411008, India. .,Academy of Scientific and Innovative Research (AcSIR), Sector 19, Kamla Nehru Nagar, Ghaziabad 201002, U. P., India
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25
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Evolution in heterodonor P-N, P-S and P-O chiral ligands for preparing efficient catalysts for asymmetric catalysis. From design to applications. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2021.214120] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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26
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Towards Data‐Driven Design of Asymmetric Hydrogenation of Olefins: Database and Hierarchical Learning. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202106880] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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27
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Dahiya G, Pappoppula M, Aponick A. Configuration Sampling With Five-Membered Atropisomeric P,N-Ligands. Angew Chem Int Ed Engl 2021; 60:19604-19608. [PMID: 34196080 DOI: 10.1002/anie.202102642] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2021] [Revised: 05/03/2021] [Indexed: 11/06/2022]
Abstract
Here we report a strategy for the systematic variation of atropisomeric C1 -symmetric P,N ligands to incrementally change the position of the groups within the chiral pocket without modifying their steric parameters. More specifically, the effects of systematic modification of the nitrogen heterocycle in atropisomeric C1 -symmetric stack ligands have been investigated in this study. The versatility and applicability of this approach has been demonstrated in mechanistically distinct catalytic enantioselective transformations, resulting in the identification of a P,N-ligand for a highly enantioselective synthesis of organoboranes.
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Affiliation(s)
- Gaurav Dahiya
- Florida Center for Heterocyclic Compounds & Department of Chemistry, University of Florida, Gainesville, FL, 32611, USA
| | - Mukesh Pappoppula
- Florida Center for Heterocyclic Compounds & Department of Chemistry, University of Florida, Gainesville, FL, 32611, USA
| | - Aaron Aponick
- Florida Center for Heterocyclic Compounds & Department of Chemistry, University of Florida, Gainesville, FL, 32611, USA
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28
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Dahiya G, Pappoppula M, Aponick A. Configuration Sampling With Five‐Membered Atropisomeric
P
,
N
‐Ligands. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202102642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Gaurav Dahiya
- Florida Center for Heterocyclic Compounds & Department of Chemistry University of Florida Gainesville FL 32611 USA
| | - Mukesh Pappoppula
- Florida Center for Heterocyclic Compounds & Department of Chemistry University of Florida Gainesville FL 32611 USA
| | - Aaron Aponick
- Florida Center for Heterocyclic Compounds & Department of Chemistry University of Florida Gainesville FL 32611 USA
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29
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Xu LC, Zhang SQ, Li X, Tang MJ, Xie PP, Hong X. Towards Data-driven Design of Asymmetric Hydrogenation of Olefins: Database and Hierarchical Learning. Angew Chem Int Ed Engl 2021; 60:22804-22811. [PMID: 34370892 DOI: 10.1002/anie.202106880] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2021] [Revised: 07/14/2021] [Indexed: 11/09/2022]
Abstract
Asymmetric hydrogenation of olefins is one of the most powerful asymmetric transformations in molecular synthesis. Although several privileged catalyst scaffolds are available, the catalyst development for asymmetric hydrogenation is still a time- and resource-consuming process due to the lack of predictive catalyst design strategy. Targeting the data-driven design of asymmetric catalysis, we herein report the development of a standardized database that contains the detailed information of over 12000 literature asymmetric hydrogenations of olefins. This database provides a valuable platform for the machine learning applications in asymmetric catalysis. Based on this database, we developed a hierarchical learning approach to achieve predictive machine leaning model using only dozens of enantioselectivity data with the target olefin, which offers a useful solution for the few-shot learning problem and will facilitate the reaction optimization with new olefin substrate in catalysis screening.
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Affiliation(s)
- Li-Cheng Xu
- Zhejiang University, Department of Chemistry, CHINA
| | | | - Xin Li
- Zhejiang University, Department of Chemistry, CHINA
| | | | - Pei-Pei Xie
- Zhejiang University, Department of Chemistry, CHINA
| | - Xin Hong
- Zhejiang University, Department of Chemistry, 38 Zheda Road, 310028, Hangzhou, CHINA
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30
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Abstract
An organometallic complex that mimics an amino acid, also known as an amino acid isostere, can be synthesized from a functionalized bipyridine ligand and a fac-[Re(CO)3]+ center. The reaction of an achiral ligand and metal results in a racemic mixture of chiral-at-metal complexes. These metal species have amine and carboxy termini, a side chain type unit that can be varied, as well as the chiral metal that is analogous to the α carbon of an amino acid. The racemic mixtures can be separated into enantiomers by chiral chromatography, and the metal complexes can be incorporated into peptides by using solid-phase peptide synthesis.
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Affiliation(s)
- Sanjay Gaire
- Department of Chemistry, University of Akron, Akron, Ohio 44312-3601, United States
| | - Briana R Schrage
- Department of Chemistry, University of Akron, Akron, Ohio 44312-3601, United States
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31
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Mas‐Roselló J, Cope CJ, Tan E, Pinson B, Robinson A, Smejkal T, Cramer N. Iridium‐Catalyzed Acid‐Assisted Hydrogenation of Oximes to Hydroxylamines. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202103806] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Josep Mas‐Roselló
- Laboratory of Asymmetric Catalysis and Synthesis Institute of Chemical Sciences and Engineering Ecole Polytechnique Fédérale de Lausanne (EPFL) Lausanne Switzerland
| | - Christopher J. Cope
- Process Chemistry Research Syngenta Crop Protection AG Schaffhauserstrasse 101 4332 Stein AG Switzerland
| | - Eric Tan
- Process Chemistry Research Syngenta Crop Protection AG Schaffhauserstrasse 101 4332 Stein AG Switzerland
| | - Benjamin Pinson
- Process Chemistry Research Syngenta Crop Protection AG Schaffhauserstrasse 101 4332 Stein AG Switzerland
| | - Alan Robinson
- Process Chemistry Research Syngenta Crop Protection AG Schaffhauserstrasse 101 4332 Stein AG Switzerland
| | - Tomas Smejkal
- Process Chemistry Research Syngenta Crop Protection AG Schaffhauserstrasse 101 4332 Stein AG Switzerland
| | - Nicolai Cramer
- Laboratory of Asymmetric Catalysis and Synthesis Institute of Chemical Sciences and Engineering Ecole Polytechnique Fédérale de Lausanne (EPFL) Lausanne Switzerland
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32
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Mas-Roselló J, Cope CJ, Tan E, Pinson B, Robinson A, Smejkal T, Cramer N. Iridium-Catalyzed Acid-Assisted Hydrogenation of Oximes to Hydroxylamines. Angew Chem Int Ed Engl 2021; 60:15524-15532. [PMID: 33886142 DOI: 10.1002/anie.202103806] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Indexed: 11/11/2022]
Abstract
We found that cyclometalated cyclopentadienyl iridium(III) complexes are uniquely efficient catalysts in homogeneous hydrogenation of oximes to hydroxylamine products. A stable iridium C,N-chelation is crucial, with alkoxy-substituted aryl ketimine ligands providing the best catalytic performance. Several Ir-complexes were mapped by X-ray crystal analysis in order to collect steric parameters that might guide a rational design of even more active catalysts. A broad range of oximes and oxime ethers were activated with stoichiometric amounts of methanesulfonic acid and reduced at room temperature, remarkably without cleavage of the fragile N-O bond. The exquisite functional group compatibility of our hydrogenation system was further demonstrated by additive tests. Experimental mechanistic investigations support an ionic hydrogenation platform, and suggest a role for the Brønsted acid beyond a proton source. Our studies provide deep understanding of this novel acidic hydrogenation and may facilitate its improvement and application to other challenging substrates.
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Affiliation(s)
- Josep Mas-Roselló
- Laboratory of Asymmetric Catalysis and Synthesis, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
| | - Christopher J Cope
- Process Chemistry Research, Syngenta Crop Protection AG, Schaffhauserstrasse 101, 4332, Stein, AG, Switzerland
| | - Eric Tan
- Process Chemistry Research, Syngenta Crop Protection AG, Schaffhauserstrasse 101, 4332, Stein, AG, Switzerland
| | - Benjamin Pinson
- Process Chemistry Research, Syngenta Crop Protection AG, Schaffhauserstrasse 101, 4332, Stein, AG, Switzerland
| | - Alan Robinson
- Process Chemistry Research, Syngenta Crop Protection AG, Schaffhauserstrasse 101, 4332, Stein, AG, Switzerland
| | - Tomas Smejkal
- Process Chemistry Research, Syngenta Crop Protection AG, Schaffhauserstrasse 101, 4332, Stein, AG, Switzerland
| | - Nicolai Cramer
- Laboratory of Asymmetric Catalysis and Synthesis, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
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33
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Balduf T, Caricato M. Gauge Dependence of the S̃ Molecular Orbital Space Decomposition of Optical Rotation. J Phys Chem A 2021; 125:4976-4985. [PMID: 34086473 DOI: 10.1021/acs.jpca.1c01653] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The measurement of optical rotation (OR) is a foundational technique for the detection and characterization of chiral molecules, but it is poorly understood how the observed property relates to the structure of the molecule. Over the years, several schemes have been developed to decompose the OR into more chemically intuitive contributions. In this paper, we introduce two alternative formulations of our previously developed S̃ molecular orbital space decomposition. These new expressions use the modified velocity gauge-magnetic (MVG-M) and -electric (MVG-E) definitions of OR, rather than the length gauge-magnetic (LG-M) definition used in the original paper. Comparing these formulations across a small set of previously studied chiral molecules, we find that these different definitions produce consistent physical interpretations of the OR. These results demonstrate that the S̃ methodology for investigations of structure-property relationships in chiral molecules is insensitive to the choice of gauge.
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Affiliation(s)
- Ty Balduf
- Department of Chemistry, University of Kansas, 1567 Irving Hill Road, Lawrence, Kansas 66045, United States
| | - Marco Caricato
- Department of Chemistry, University of Kansas, 1567 Irving Hill Road, Lawrence, Kansas 66045, United States
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34
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Synthesis of rigid chiral C3-symmetric triptycene-based ligands and their application in enantioselective Cu(I)-catalyzed aziridination of chalcones. J Organomet Chem 2021. [DOI: 10.1016/j.jorganchem.2021.121804] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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35
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Parker PD, Hou X, Dong VM. Reducing Challenges in Organic Synthesis with Stereoselective Hydrogenation and Tandem Catalysis. J Am Chem Soc 2021; 143:6724-6745. [PMID: 33891819 DOI: 10.1021/jacs.1c00750] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Tandem catalysis enables the rapid construction of complex architectures from simple building blocks. This Perspective shares our interest in combining stereoselective hydrogenation with transformations such as isomerization, oxidation, and epimerization to solve diverse challenges. We highlight the use of tandem hydrogenation for preparing complex natural products from simple prochiral building blocks and present tandem catalysis involving transfer hydrogenation and dynamic kinetic resolution. Finally, we underline recent breakthroughs and opportunities for asymmetric hydrogenation.
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Affiliation(s)
- Patrick D Parker
- Department of Chemistry, University of California, Irvine, California 92697, United States
| | - Xintong Hou
- Department of Chemistry, University of California, Irvine, California 92697, United States
| | - Vy M Dong
- Department of Chemistry, University of California, Irvine, California 92697, United States
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36
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Hsu CP, Liu YH, Boobalan R, Lin YF, Chein RJ, Chiu CW. Chiral Tetra-coordinate Aluminum Cation in Catalysis. Organometallics 2021. [DOI: 10.1021/acs.organomet.1c00036] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Ching-Pei Hsu
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan
| | - Yi-Hung Liu
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan
| | | | - Ya-Fan Lin
- Department of Fragrance and Cosmetic Science, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
| | - Rong-Jie Chein
- Institute of Chemistry, Academia Sinica, Taipei 11529, Taiwan
| | - Ching-Wen Chiu
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan
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38
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Han J, Kim J, Lee J, Kim Y, Lee SY. Boron Lewis Acid-Catalyzed Hydrophosphinylation of N-Heteroaryl-Substituted Alkenes with Secondary Phosphine Oxides. J Org Chem 2020; 85:15476-15487. [PMID: 33179920 DOI: 10.1021/acs.joc.0c02246] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
We report the boron-catalyzed hydrophosphinylation of N-heteroaryl-substituted alkenes with secondary phosphine oxides that furnishes various phosphorus-containing N-heterocycles. This process proceeds under mild conditions and enables the introduction of a phosphorus atom into multisubstituted alkenylazaarenes. The available mechanistic data can be explained by a reaction pathway wherein the C-P bond is created by the reaction between the activated alkene (by coordination to a boron catalyst) and the phosphorus(III) nucleophile (in tautomeric equilibrium with phosphine oxide).
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Affiliation(s)
- Jimin Han
- Department of Chemistry, Yonsei University, Seoul 03722, Republic of Korea
| | - Jongwon Kim
- Department of Chemistry, Yonsei University, Seoul 03722, Republic of Korea
| | - Jaehoo Lee
- Department of Chemistry, Yonsei University, Seoul 03722, Republic of Korea
| | - Younghun Kim
- Department of Chemistry, Yonsei University, Seoul 03722, Republic of Korea
| | - Sarah Yunmi Lee
- Department of Chemistry, Yonsei University, Seoul 03722, Republic of Korea
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39
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Margalef J, Pàmies O, Pericàs MA, Diéguez M. Evolution of phosphorus-thioether ligands for asymmetric catalysis. Chem Commun (Camb) 2020; 56:10795-10808. [PMID: 32812569 DOI: 10.1039/d0cc04145a] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
In the early 1990s chiral P-thiother ligands emerged as promising ligands in the field of asymmetric catalysis, with the development of many P-thioether ligand families. However, only a few of them have shown a broad reaction and substrate scope. So, compared with other heterodonor ligands such as the widely studied P-N ligands, their impact in asymmetric catalysis was not realised until recently. This has been mainly attributed to the difficulty of controlling the configuration at the sulfur atom when coordinated to the metal. More recently, it has been found that this problem could be solved by a rigorous choice of the ligand scaffold, a process usually aided by mechanistic studies. This allowed the recent discovery of new P-thioether ligand families with a broader versatility, both in reactions and in substrate/reagent scope. This feature article aims to highlight those new P-thioether ligand libraries and the relationship between the structure and catalytic performance.
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Affiliation(s)
- Jèssica Margalef
- Departament de Química Física i Inorgànica, Universitat Rovira i Virgili, C/Marcel·lí Domingo, 1, 43007 Tarragona, Spain.
| | - Oscar Pàmies
- Departament de Química Física i Inorgànica, Universitat Rovira i Virgili, C/Marcel·lí Domingo, 1, 43007 Tarragona, Spain.
| | - Miquel A Pericàs
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, Av Països Catalans 16, 43007 Tarragona, Spain and Departament de Química Inorgànica i Orgànica, Universitat de Barcelona, 08028 Barcelona, Spain.
| | - Montserrat Diéguez
- Departament de Química Física i Inorgànica, Universitat Rovira i Virgili, C/Marcel·lí Domingo, 1, 43007 Tarragona, Spain.
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40
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Shaaban S, Davies C, Waldmann H. Applications of Chiral Cyclopentadienyl (Cp
x
) Metal Complexes in Asymmetric Catalysis. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000752] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Saad Shaaban
- Max‐Planck‐Institute of Molecular Physiology Department of Chemical Biology Otto‐Hahn‐Straße 11 44227 Dortmund Germany
| | - Caitlin Davies
- Max‐Planck‐Institute of Molecular Physiology Department of Chemical Biology Otto‐Hahn‐Straße 11 44227 Dortmund Germany
- Technical University Dortmund Faculty of Chemical Biology Otto‐Hahn‐Straße 4a 44227 Dortmund Germany
| | - Herbert Waldmann
- Max‐Planck‐Institute of Molecular Physiology Department of Chemical Biology Otto‐Hahn‐Straße 11 44227 Dortmund Germany
- Technical University Dortmund Faculty of Chemical Biology Otto‐Hahn‐Straße 4a 44227 Dortmund Germany
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41
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Guyon H, Castanet AS, Boussonnière A. Computational Insight into 1,2-Diamine, -Diether, and -Amino Ether Chiral Ligand-Mediated Carbolithiation: A Case of Enantioinduction Reversal. J Org Chem 2020; 85:8933-8943. [PMID: 32597647 DOI: 10.1021/acs.joc.0c00832] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
trans-1,2-Cyclohexanediamine, -diether, and -amino ether were compared as chiral inducers in the asymmetric intramolecular carbolithiation of olefinic aryllithiums. Switching from diamine to ethereal ligands inverts the sense of asymmetric induction. This reversal of stereoselectivity was investigated through density functional theory calculations. High enantioselectivities observed with diether and amino ether ligands arise from favorable weak interactions between the ligand and the substrate. The relative efficiency of the three ligands and sense of stereoinduction for the most efficient diether and amino ether ligands prove to be foreseeable by modeling the reaction with the parent achiral 1,2-bidentate additives and comparing the diastereomeric transition states stemming from the two half-chair conformations of their lithium chelate.
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Affiliation(s)
- Hélène Guyon
- Institut des Molécules et Matériaux du Mans (IMMM)-UMR 6283 CNRS-Le Mans Université, Avenue Olivier Messiaen, Le Mans 72085, France
| | - Anne-Sophie Castanet
- Institut des Molécules et Matériaux du Mans (IMMM)-UMR 6283 CNRS-Le Mans Université, Avenue Olivier Messiaen, Le Mans 72085, France
| | - Anne Boussonnière
- Institut des Molécules et Matériaux du Mans (IMMM)-UMR 6283 CNRS-Le Mans Université, Avenue Olivier Messiaen, Le Mans 72085, France
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42
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Groß C, Omlor A, Grimm T, Oelkers B, Sun Y, Schünemann V, Thiel WR. Iron(II) Complexes of Chiral Tridentate Nitrogen Donors and their Application in Catalytic Hydrosilylation Reactions. Z Anorg Allg Chem 2020. [DOI: 10.1002/zaac.201900310] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Cedric Groß
- Fachbereich Chemie Technische Universität Kaiserslautern Erwin‐Schrödinger‐Straße 54 67663 Kaiserslautern Germany
| | - Andreas Omlor
- Fachbereich Physik Technische Universität Kaiserslautern Erwin‐Schrödinger‐Straße 56 67663 Kaiserslautern Germany
| | - Tobias Grimm
- Fachbereich Chemie Technische Universität Kaiserslautern Erwin‐Schrödinger‐Straße 54 67663 Kaiserslautern Germany
| | - Benjamin Oelkers
- Fachbereich Chemie Technische Universität Kaiserslautern Erwin‐Schrödinger‐Straße 54 67663 Kaiserslautern Germany
| | - Yu Sun
- Fachbereich Chemie Technische Universität Kaiserslautern Erwin‐Schrödinger‐Straße 54 67663 Kaiserslautern Germany
| | - Volker Schünemann
- Fachbereich Physik Technische Universität Kaiserslautern Erwin‐Schrödinger‐Straße 56 67663 Kaiserslautern Germany
| | - Werner R. Thiel
- Fachbereich Chemie Technische Universität Kaiserslautern Erwin‐Schrödinger‐Straße 54 67663 Kaiserslautern Germany
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43
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Iwamoto T, Mizuhata Y, Tokitoh N, Nakamura M. Development of P- and N-Chirogenic Ligands Based on Chiral Induction from a Phosphorus Donor to a Nitrogen Donor in Palladium Complexes. Organometallics 2020. [DOI: 10.1021/acs.organomet.0c00154] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Takahiro Iwamoto
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Kyoto 615-8510, Japan
| | - Yoshiyuki Mizuhata
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Norihiro Tokitoh
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Masaharu Nakamura
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Kyoto 615-8510, Japan
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44
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Blasius CK, Ren BT, Bürgy D, Liu YK, Li B, Michalsky I, Wadepohl H, Deng QH, Gade LH. Expanding the Boxmi Ligand Family: Synthesis and Application of NON and NSN Ligands. J Org Chem 2020; 85:6719-6731. [PMID: 32286820 DOI: 10.1021/acs.joc.0c00751] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Two synthetic strategies for a new family of neutral NON ligands featuring a "bis(oxazolinylmethylidene)isobenzofuran" framework (boxman) are reported. A Pd-mediated cyclization reaction forming the isobenzofuran core constitutes the key reaction in the eight-step synthetic route to the nonbackbone-methylated target compound H,Rboxman. In contrast, the introduction of two additional methyl groups provides stereochemical control during backbone construction and thereby access to the methylated derivative Me,Rboxman, which was synthesized in five steps and improved yields. In addition, the synthetic sequence was transferred to the thio analogue, providing access to the NSN ligand H,Rboxmene. Subsequent complexation experiments with iron and cobalt chloride precursors afforded the four-coordinated chlorido complexes Me,RboxmanMCl2 (R = Ph, iPr; M = Fe, Co) and established the boxman family as trans-chelating, bidentate bis(oxazoline) ligands. Application of the latter in the nickel(II)- and zinc(II)-catalyzed α-fluorination of β-ketoesters and oxindoles (up to 98% yield and 94% ee) demonstrated their suitability for enantioselective catalysis.
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Affiliation(s)
- Clemens K Blasius
- Anorganisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 270, Heidelberg 69120, Germany
| | - Bing-Tao Ren
- The Education Ministry Key Lab of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Normal University, Shanghai 200234, P. R. China
| | - David Bürgy
- Anorganisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 270, Heidelberg 69120, Germany
| | - Yan-Kai Liu
- The Education Ministry Key Lab of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Normal University, Shanghai 200234, P. R. China
| | - Bin Li
- The Education Ministry Key Lab of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Normal University, Shanghai 200234, P. R. China
| | - Ina Michalsky
- Anorganisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 270, Heidelberg 69120, Germany
| | - Hubert Wadepohl
- Anorganisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 270, Heidelberg 69120, Germany
| | - Qing-Hai Deng
- The Education Ministry Key Lab of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Normal University, Shanghai 200234, P. R. China
| | - Lutz H Gade
- Anorganisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 270, Heidelberg 69120, Germany
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45
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Munzeiwa WA, Omondi B, Nyamori VO. Architecture and synthesis of P ,N-heterocyclic phosphine ligands. Beilstein J Org Chem 2020; 16:362-383. [PMID: 32256853 PMCID: PMC7082614 DOI: 10.3762/bjoc.16.35] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Accepted: 02/19/2020] [Indexed: 11/23/2022] Open
Abstract
Diverse P,N-phosphine ligands reported to date have performed exceptionally well as auxiliary ligands in organometallic catalysis. Phosphines bearing 2-pyridyl moieties prominently feature in literature as compared to phosphines with five-membered N-heterocycles. This discussion seeks to paint a broad picture and consolidate different synthetic protocols and techniques for N-heterocyclic phosphine motifs. The introduction provides an account of P,N-phosphine ligands, and their structural and coordination benefits from combining heteroatoms with different basicity in one ligand. The body discusses the synthetic protocols which focus on P–C, P–N-bond formation, substrate and nucleophile types and different N-heterocycle construction strategies. Selected references are given in relation to the applications of the ligands.
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Affiliation(s)
- Wisdom A Munzeiwa
- School of Chemistry and Physics, University of KwaZulu-Natal, Westville Campus, Private Bag X54001, Durban 4000, South Africa
| | - Bernard Omondi
- School of Chemistry and Physics, University of KwaZulu-Natal, Pietermaritzburg Campus, Private Bag X01, Scottsville, Pietermaritzburg 3201, South Africa
| | - Vincent O Nyamori
- School of Chemistry and Physics, University of KwaZulu-Natal, Westville Campus, Private Bag X54001, Durban 4000, South Africa
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46
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Arthurs RA, Hughes DL, Richards CJ. Stereoselective Synthesis of All Possible Phosferrox Ligand Diastereoisomers Displaying Three Elements of Chirality: Stereochemical Optimization for Asymmetric Catalysis. J Org Chem 2020; 85:4838-4847. [DOI: 10.1021/acs.joc.9b03342] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ross A. Arthurs
- School of Chemistry, University of East Anglia, Norwich Research Park, Norwich NR4 7TJ, United Kingdom
| | - David L. Hughes
- School of Chemistry, University of East Anglia, Norwich Research Park, Norwich NR4 7TJ, United Kingdom
| | - Christopher J. Richards
- School of Chemistry, University of East Anglia, Norwich Research Park, Norwich NR4 7TJ, United Kingdom
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47
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Planar Chiral [2.2]Paracyclophane-Based Bisoxazoline Ligands and Their Applications in Cu-Mediated N-H Insertion Reaction. MOLECULES (BASEL, SWITZERLAND) 2019; 24:molecules24224122. [PMID: 31739572 PMCID: PMC6891757 DOI: 10.3390/molecules24224122] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Revised: 11/06/2019] [Accepted: 11/07/2019] [Indexed: 02/04/2023]
Abstract
New catalysts for important C–N bond formation are highly sought after. In this work, we demonstrate the synthesis and viability of a new class of planar chiral [2.2]paracyclophane-based bisoxazoline (BOX) ligands for the copper-catalyzed N–H insertion of α-diazocarbonyls into anilines. The reaction features a wide substrate scope and moderate to excellent yields, and delivers the valuable products at ambient conditions.
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48
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Pedroarena JR, Nell BP, Zakharov LN, Tyler DR. Synthesis of Unsymmetrical Bis(phosphine) Oxides and Their Phosphines via Secondary Phosphine Oxide Precursors. J Inorg Organomet Polym Mater 2019. [DOI: 10.1007/s10904-019-01288-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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49
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Li S, Zhang J, Li H, Feng L, Jiao P. Preparation and Application of Amino Phosphine Ligands Bearing Spiro[indane-1,2′-pyrrolidine] Backbone. J Org Chem 2019; 84:9460-9473. [DOI: 10.1021/acs.joc.9b00875] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Shasha Li
- Key Laboratory of Radiopharmaceuticals, College of Chemistry, Beijing Normal University, Beijing 100875, P. R. China
| | - Jinxia Zhang
- Key Laboratory of Radiopharmaceuticals, College of Chemistry, Beijing Normal University, Beijing 100875, P. R. China
| | - Hongjie Li
- Key Laboratory of Radiopharmaceuticals, College of Chemistry, Beijing Normal University, Beijing 100875, P. R. China
| | - Lifei Feng
- Key Laboratory of Radiopharmaceuticals, College of Chemistry, Beijing Normal University, Beijing 100875, P. R. China
| | - Peng Jiao
- Key Laboratory of Radiopharmaceuticals, College of Chemistry, Beijing Normal University, Beijing 100875, P. R. China
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50
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DeRatt LG, Pappoppula M, Aponick A. A Facile Enantioselective Alkynylation of Chromones. Angew Chem Int Ed Engl 2019; 58:8416-8420. [PMID: 31016846 DOI: 10.1002/anie.201902405] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2019] [Revised: 04/02/2019] [Indexed: 11/06/2022]
Abstract
The first catalytic enantioselective alkynylation of chromones is reported. In this process, chromones are silylated to form silyloxybenzopyrylium ions that lead to silyl enol ethers after Cu-catalyzed alkyne addition using StackPhos as a ligand. The outcome of the reaction is impacted by distal ligand substituents with differing electronic character and it was found that successful reactions could be achieved with different ligand congeners by using different solvents. This sequence enables access to different products by protonation or further functionalization, thus increasing complexity in a divergent manner. The transformation is high yielding over a broad scope to provide a variety of useful chromanones in high enantioselectivity.
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Affiliation(s)
- Lindsey G DeRatt
- Florida Center for Heterocyclic Compounds & Department of Chemistry, University of Florida, P.O. Box 117200, Gainesville, FL, 32607, USA
| | - Mukesh Pappoppula
- Florida Center for Heterocyclic Compounds & Department of Chemistry, University of Florida, P.O. Box 117200, Gainesville, FL, 32607, USA
| | - Aaron Aponick
- Florida Center for Heterocyclic Compounds & Department of Chemistry, University of Florida, P.O. Box 117200, Gainesville, FL, 32607, USA
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