1
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Zhang T, Nishiura Y, Cusumano AQ, Stoltz BM. Palladium-Catalyzed Asymmetric Conjugate Addition of Arylboronic Acids to α,β-Unsaturated Lactams: Enantioselective Construction of All-Carbon Quaternary Stereocenters in Saturated Nitrogen-Containing Heterocycles. Org Lett 2023; 25:6479-6484. [PMID: 37639656 PMCID: PMC10496148 DOI: 10.1021/acs.orglett.3c02064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2023] [Indexed: 08/31/2023]
Abstract
Stereogenic nitrogen-containing heterocycles are ubiquitous in natural products and pharmaceutical compounds, but methods for their enantioselective construction have remained elusive. We report a general method for the asymmetric conjugate addition of arylboronic acids to β-alkyl/aryl α,β-unsaturated lactams that affords chiral β,β-disubstituted lactams. The transformation is operationally simple and air- and moisture-tolerant and uses a commercially available (S)-t-Bu-PyOx ligand. The method is high-yielding (up to 95% yield) and enantioselective (up to 97% ee) for a wide range of arylboronic acids and α,β-unsaturated lactams, including those with different ring sizes.
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Affiliation(s)
- Tianyi Zhang
- The Warren and Katharine
Schlinger Laboratory for Chemistry and Chemical Engineering, Division
of Chemistry and Chemical Engineering, California
Institute of Technology, Pasadena, California 91125, United States
| | - Yuji Nishiura
- The Warren and Katharine
Schlinger Laboratory for Chemistry and Chemical Engineering, Division
of Chemistry and Chemical Engineering, California
Institute of Technology, Pasadena, California 91125, United States
| | - Alexander Q. Cusumano
- The Warren and Katharine
Schlinger Laboratory for Chemistry and Chemical Engineering, Division
of Chemistry and Chemical Engineering, California
Institute of Technology, Pasadena, California 91125, United States
| | - Brian M. Stoltz
- The Warren and Katharine
Schlinger Laboratory for Chemistry and Chemical Engineering, Division
of Chemistry and Chemical Engineering, California
Institute of Technology, Pasadena, California 91125, United States
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2
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Asano K, Matsubara S. Organocatalytic Access to Tetrasubstituted Chiral Carbons Integrating Functional Groups. CHEM REC 2022:e202200200. [PMID: 36163471 DOI: 10.1002/tcr.202200200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Revised: 09/08/2022] [Indexed: 12/15/2022]
Abstract
Three-dimensional organic structures containing sp3 carbons bearing four non-hydrogen substituents can provide drug-like molecules. Although such complex structures are challenging targets in synthetic organic chemistry, efficient synthetic approaches will open a new chemical space for pharmaceutical candidates. This review provides an account of our recent achievements in developing organocatalytic approaches to attractive molecular platforms based on optically active sp3 carbons integrating four different functional groups. These methodologies include asymmetric cycloetherification and cyanation of multifunctional ketones, both of which take advantage of the mild characteristics of organocatalytic activation. Enzyme-like but non-enzymatic organocatalytic systems can be used to precisely manufacture molecules containing complex chiral structures without substrate specificity problems. In addition, these catalytic systems control not only stereoselectivity but also site-selectivity and do not induce side reactions even from substrates with rich functionality.
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Affiliation(s)
- Keisuke Asano
- Institute for Catalysis, Hokkaido University Sapporo, Hokkaido, 001-0021, Japan
| | - Seijiro Matsubara
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University Kyotodaigaku-Katsura, Nishikyo, Kyoto, 615-8510, Japan
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3
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Hagiwara H. Introduction of Chiral Centers to α- and/or β-Positions of Carbonyl Groups by Biocatalytic Asymmetric Reduction of α,β-Unsaturated Carbonyl Compounds. Nat Prod Commun 2022. [DOI: 10.1177/1934578x221099054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Biocatalytic asymmetric reductions of acyclic and cyclic α,β-unsaturated carbonyl compounds are favorable protocols for introduction of chiral centers to α- and/or β-positions of the carbonyl groups. Representative biocatalytic reductions of electron deficient olefins are compiled from a synthetic point of view according to compound types from the papers in 2012 to early 2022. Applications to syntheses of some enantiomericaly enriched perfumery ingredients are presented to show the feasibility of the biocatalytic reductions.
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Affiliation(s)
- Hisahiro Hagiwara
- Graduate School of Science and Technology, Niigata University, 8050, 2-Nocho, Ikarashi, Nishi-ku, Niigata, 950-2181, Japan
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4
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Wang J, Li C, Xu T, Li M, Hao W, Tu S, Wang J, Li G, Yu Z, Jiang B. Catalytic Enantioselective Construction of 6‐4
Ring‐Junction All‐Carbon
Stereocenters and Its Mechanistic Insights. CHINESE J CHEM 2022. [DOI: 10.1002/cjoc.202200211] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Jia‐Yin Wang
- School of Chemistry & Materials Science, Jiangsu Normal University Xuzhou 221116 P. R. China
| | - Chen‐Long Li
- College of Chemistry, Peking University Beijing 100871 P. R. China
| | - Ting Xu
- School of Chemistry & Materials Science, Jiangsu Normal University Xuzhou 221116 P. R. China
| | - Meng‐Fan Li
- School of Chemistry & Materials Science, Jiangsu Normal University Xuzhou 221116 P. R. China
| | - Wen‐Juan Hao
- School of Chemistry & Materials Science, Jiangsu Normal University Xuzhou 221116 P. R. China
| | - Shu‐Jiang Tu
- School of Chemistry & Materials Science, Jiangsu Normal University Xuzhou 221116 P. R. China
| | - Jianyi Wang
- Medical College, Guangxi University Nanning 530004 P. R. China
| | - Guigen Li
- Institute of Chemistry & Biomedical Sciences, Nanjing University Nanjing 210093 P. R. China
- Department of Chemistry and Biochemistry Texas Tech University Lubbock Texas 79409‐1061 United States
| | - Zhi‐Xiang Yu
- College of Chemistry, Peking University Beijing 100871 P. R. China
| | - Bo Jiang
- School of Chemistry & Materials Science, Jiangsu Normal University Xuzhou 221116 P. R. China
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5
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Ramar T, Subbaiah MAM, Ilangovan A. Orchestrating a β-Hydride Elimination Pathway in Palladium(II)-Catalyzed Arylation/Alkenylation of Cyclopropanols Using Organoboron Reagents. J Org Chem 2022; 87:4508-4523. [PMID: 35289619 DOI: 10.1021/acs.joc.1c02735] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The scope of chemoselective β-hydride elimination in the context of arylation/alkenylation of homoenolates from cyclopropanol precursors using organoboronic reagents as transmetalation coupling partners was examined. The reaction optimization paradigm revealed a simple ligand-free Pd(II) catalytic system to be most efficient under open air conditions. The preparative scope, which was investigated with 48 examples, supported the applicability of this reaction to a wide range of substrates tolerating a variety of functional groups while delivering β-substituted enone and dienone derivatives in 62-95% yields.
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Affiliation(s)
- Thangeswaran Ramar
- Department of Medicinal Chemistry, Biocon Bristol Myers Squibb R&D Centre, Biocon Park, Bommasandra IV Phase, Jigani Link Road, Bangalore 560099, India.,Department of Chemistry, Bharathidasan University, Palkalaiperur, Thiruchirapalli 620024, India
| | - Murugaiah A M Subbaiah
- Department of Medicinal Chemistry, Biocon Bristol Myers Squibb R&D Centre, Biocon Park, Bommasandra IV Phase, Jigani Link Road, Bangalore 560099, India
| | - Andivelu Ilangovan
- Department of Chemistry, Bharathidasan University, Palkalaiperur, Thiruchirapalli 620024, India
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6
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Nagano T, Matsumoto A, Yoshizaki R, Asano K, Matsubara S. Non-enzymatic catalytic asymmetric cyanation of acylsilanes. Commun Chem 2022; 5:45. [PMID: 36697739 PMCID: PMC9814240 DOI: 10.1038/s42004-022-00662-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Accepted: 03/09/2022] [Indexed: 01/28/2023] Open
Abstract
The asymmetric cyanation of acylsilanes affords densely functionalized tetrasubstituted chiral carbon centers bearing silyl, cyano, and hydroxy groups, which are of particular interest in synthetic and medicinal chemistry. However, this method has been limited to a few enzymatic approaches, which employ only one substrate because of substrate specificity. Here we show the non-enzymatic catalytic asymmetric cyanation of acylsilanes using a chiral Lewis base as an enantioselective catalyst, trimethylsilyl cyanide as a cyanating reagent, and isopropyl alcohol as an additive to drive catalyst turnover. High enantio- and site-selectivities are achieved in a catalytic manner, and a variety of functional groups are installed in optically active acylsilane cyanohydrins, thus overcoming the limitations imposed by substrate specificity in conventional enzymatic methods. A handle for the synthetic application of the products is also established through the development of a catalyst for protecting acylsilane cyanohydrins, which are unstable and difficult to protect alcohols.
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Affiliation(s)
- Tagui Nagano
- grid.258799.80000 0004 0372 2033Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Kyotodaigaku-Katsura, Nishikyo, Kyoto, 615-8510 Japan
| | - Akira Matsumoto
- grid.258799.80000 0004 0372 2033Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Kyotodaigaku-Katsura, Nishikyo, Kyoto, 615-8510 Japan ,grid.258799.80000 0004 0372 2033Present Address: Graduate School of Pharmaceutical Sciences, Kyoto University, Yoshida-Shimoadachi, Sakyo, Kyoto, 606-8501 Japan
| | - Ryotaro Yoshizaki
- grid.258799.80000 0004 0372 2033Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Kyotodaigaku-Katsura, Nishikyo, Kyoto, 615-8510 Japan
| | - Keisuke Asano
- grid.258799.80000 0004 0372 2033Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Kyotodaigaku-Katsura, Nishikyo, Kyoto, 615-8510 Japan
| | - Seijiro Matsubara
- grid.258799.80000 0004 0372 2033Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Kyotodaigaku-Katsura, Nishikyo, Kyoto, 615-8510 Japan
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7
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Yu X, Zhang T, Liu J, Li X. Recent Advances in the Construction of Quaternary Stereocenters via Palladium-Catalyzed Decarboxylative Asymmetric Allylic Alkylation. SYNTHESIS-STUTTGART 2021. [DOI: 10.1055/a-1533-3085] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
AbstractPalladium-catalyzed decarboxylative asymmetric allylic alkylation (DAAA) provides an efficient and powerful strategy to construct quaternary stereocenters, which are widely present in biologically active natural products and approved drugs. In this short review, we summarize recent developments (since 2018) in the facile synthesis of quaternary stereocenters via DAAA methods. Several representative examples of the use of DAAA strategies for the total synthesis of complex natural products further demonstrate its synthetic potential in the realm of organic and medicinal chemistry.1 Introduction2 Construction of Quaternary Stereocenters via Palladium Catalyzed DAAA3 Construction of Quaternary Stereocenters via Pd-Catalyzed Interceptive DAAA4 Application of DAAA in Natural Product Synthesis5 Conclusion
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Affiliation(s)
- Xinhui Yu
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University
| | - Ting Zhang
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University
| | - Jitian Liu
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University
| | - Xiaoxun Li
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University
- Suzhou Institute of Shandong University
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8
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Brooks B, Hiller N, May JA. Reaction rate differences between organotrifluoroborates and boronic acids in BINOL-catalyzed conjugate addition to enones. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2021.153412] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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9
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Anthony S, Wonilowicz LG, McVeigh MS, Garg NK. Leveraging Fleeting Strained Intermediates to Access Complex Scaffolds. JACS Au 2021; 1:897-912. [PMID: 34337603 PMCID: PMC8317162 DOI: 10.1021/jacsau.1c00214] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Indexed: 05/07/2023]
Abstract
Arynes, strained cyclic alkynes, and strained cyclic allenes were validated as plausible intermediates in the 1950s and 1960s. Despite initially being considered mere scientific curiosities, these transient and highly reactive species have now become valuable synthetic building blocks. This Perspective highlights recent advances in the field that have allowed access to structural and stereochemical complexity, including recent breakthroughs in asymmetric catalysis.
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10
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Bartáček J, Svoboda J, Kocúrik M, Pochobradský J, Čegan A, Sedlák M, Váňa J. Recent advances in palladium-catalysed asymmetric 1,4-additions of arylboronic acids to conjugated enones and chromones. Beilstein J Org Chem 2021; 17:1048-1085. [PMID: 34093877 PMCID: PMC8144908 DOI: 10.3762/bjoc.17.84] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2021] [Accepted: 04/17/2021] [Indexed: 11/30/2022] Open
Abstract
The transition metal (palladium)-catalysed asymmetric 1,4-addition of arylboronic acids to conjugated enones belong to the most important and emerging strategies for the construction of C-C bonds in an asymmetric fashion. This review covers known catalytic systems used for this transformation. For clarity, we are using the type of ligand as a sorting criterion. Finally, we attempted to create a flowchart facilitating the selection of a suitable ligand for a given combination of enone and arylboronic acid.
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Affiliation(s)
- Jan Bartáček
- Institute of Organic Chemistry and Technology, Faculty of Chemical Technology, University of Pardubice, Studentská 573, 532 10 Pardubice, Czech Republic
| | - Jan Svoboda
- Institute of Organic Chemistry and Technology, Faculty of Chemical Technology, University of Pardubice, Studentská 573, 532 10 Pardubice, Czech Republic
| | - Martin Kocúrik
- Institute of Organic Chemistry and Technology, Faculty of Chemical Technology, University of Pardubice, Studentská 573, 532 10 Pardubice, Czech Republic
| | - Jaroslav Pochobradský
- Institute of Organic Chemistry and Technology, Faculty of Chemical Technology, University of Pardubice, Studentská 573, 532 10 Pardubice, Czech Republic
| | - Alexander Čegan
- Department of Biological and Biochemical Sciences, Faculty of Chemical Technology, University of Pardubice, Studentská 573, 532 10 Pardubice, Czech Republic
| | - Miloš Sedlák
- Institute of Organic Chemistry and Technology, Faculty of Chemical Technology, University of Pardubice, Studentská 573, 532 10 Pardubice, Czech Republic
| | - Jiří Váňa
- Institute of Organic Chemistry and Technology, Faculty of Chemical Technology, University of Pardubice, Studentská 573, 532 10 Pardubice, Czech Republic
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11
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Song K, Wen M, Shen K, Fan C, Yang Z, Lin S, Pan Q. Pd(II)/(S)-t-BuPyOx-catalyzed asymmetric addition of arylboronic acids to N-sulfonyl-arylaldimines. Tetrahedron Lett 2021; 72:153057. [DOI: 10.1016/j.tetlet.2021.153057] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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12
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Wahlers J, Maloney M, Salahi F, Rosales AR, Helquist P, Norrby PO, Wiest O. Stereoselectivity Predictions for the Pd-Catalyzed 1,4-Conjugate Addition Using Quantum-Guided Molecular Mechanics. J Org Chem 2021; 86:5660-5667. [PMID: 33769065 DOI: 10.1021/acs.joc.1c00136] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The conjugate addition of aryl boronic acids to enones is a powerful synthetic tool to introduce quaternary chiral centers, but the experimentally observed stereoselectivities vary widely, and the identification of suitable substrate-ligand combinations requires significant effort. We describe the development and application of a transition-state force field (TSFF) by the quantum-guided molecular mechanics (Q2MM) method that is validated using an automated screen of 9 ligands, 38 aryl boronic acids, and 22 enones, leading to a MUE of 1.8 kJ/mol and a R2 value of 0.877 over 82 examples. A detailed error analysis identified the structural origin for the deviations in the small group of outliers. The TSFF was then used to predict the stereoselectivity for 27 ligands and 59 enones. The vast majority of the virtual screening results are in line with the expected results. Selected results for 6-substituted pyrox ligands, which were not part of the training set, were followed up by density functional theory and experimental studies.
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Affiliation(s)
- Jessica Wahlers
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Michael Maloney
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Farbod Salahi
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Anthony R Rosales
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Paul Helquist
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Per-Ola Norrby
- Data Science and Modelling, Pharmaceutical Sciences, R&D, AstraZeneca Gothenburg, Pepparedsleden 1, SE-431 83 Mölndal, Sweden.,Department of Chemistry and Molecular Biology, University of Gothenburg, SE-412 96 Gothenburg, Sweden
| | - Olaf Wiest
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, United States
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13
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Abstract
Palladium catalysis can achieve the base-free borylation of alkenyl carboxylates, enabling direct access to functionalized enones and heterocycles.
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Affiliation(s)
- Gregory Gaube
- Department of Chemistry, University of Victoria, 3800 Finnerty Rd., Victoria, BC, V8P 5C2, Canada
| | - Nahiane Pipaon Fernandez
- Department of Chemistry, University of Victoria, 3800 Finnerty Rd., Victoria, BC, V8P 5C2, Canada
| | - David C. Leitch
- Department of Chemistry, University of Victoria, 3800 Finnerty Rd., Victoria, BC, V8P 5C2, Canada
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14
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Huang C, Peng W, Liu L, Wu C, Tsai F. Iron-Catalyzed Conjugate Addition of Aryl Iodides onto Activated Alkenes under Air in Water. Catalysts 2020; 10:1320. [DOI: 10.3390/catal10111320] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The combination of commercially available FeCl3·6H2O with a water-soluble cationic 2,2′-bipyridyl catalytic system was found to enable the direct conjugate addition of aryl iodides onto activated alkenes, such as an α,β-unsaturated ester and a ketone, in a weakly acidic aqueous solution. This operationally simple protocol was carried out at 80 °C under air atmosphere in a potassium acetate-buffered aqueous solution for 12 h in the presence of Zn dust as a reductant to provide the desired 1,4-adducts in good yields.
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15
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Abstract
AbstractThe activation of strong C–O bonds in cross-coupling catalysis can open up new oxygenate-based feedstocks and building blocks for complex-molecule synthesis. Although Ni catalysis has been the major focus for cross-coupling of carboxylate-based electrophiles, we recently demonstrated that palladium catalyzes not only difficult C–O oxidative additions but also Suzuki-type cross-couplings of alkenyl carboxylates under mild conditions. We propose that, depending on the reaction conditions, either a typical Pd(0)/(II) mechanism or a redox-neutral Pd(II)-only mechanism can operate. In the latter pathway, C–C bond formation occurs through carbopalladation of the alkene, and C–O cleavage by β-carboxyl elimination.1 Introduction2 A Mechanistic Challenge: Activating Strong C–O Bonds3 Exploiting Vinylogy for C–Cl and C–O Oxidative Additions4 An Alternative Mechanism for Efficient Cross-Coupling Catalysis5 Conclusions and Outlook
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16
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Hoveyda AH, Zhou Y, Shi Y, Brown MK, Wu H, Torker S. Sulfonate N‐Heterocyclic Carbene–Copper Complexes: Uniquely Effective Catalysts for Enantioselective Synthesis of C−C, C−B, C−H, and C−Si Bonds. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202003755] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Amir H. Hoveyda
- Department of Chemistry Merkert Chemistry Center Boston College Chestnut Hill MA 02467 USA
- Supramolecular Science and Engineering Institute University of Strasbourg CNRS 67000 Strasbourg France
| | - Yuebiao Zhou
- Department of Chemistry Merkert Chemistry Center Boston College Chestnut Hill MA 02467 USA
| | - Ying Shi
- Department of Chemistry Merkert Chemistry Center Boston College Chestnut Hill MA 02467 USA
| | - M. Kevin Brown
- Department of Chemistry Merkert Chemistry Center Boston College Chestnut Hill MA 02467 USA
| | - Hao Wu
- Department of Chemistry Merkert Chemistry Center Boston College Chestnut Hill MA 02467 USA
| | - Sebastian Torker
- Department of Chemistry Merkert Chemistry Center Boston College Chestnut Hill MA 02467 USA
- Supramolecular Science and Engineering Institute University of Strasbourg CNRS 67000 Strasbourg France
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17
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Hoveyda AH, Zhou Y, Shi Y, Brown MK, Wu H, Torker S. Sulfonate N-Heterocyclic Carbene-Copper Complexes: Uniquely Effective Catalysts for Enantioselective Synthesis of C-C, C-B, C-H, and C-Si Bonds. Angew Chem Int Ed Engl 2020; 59:21304-21359. [PMID: 32364640 DOI: 10.1002/anie.202003755] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Indexed: 12/21/2022]
Abstract
A copper-based complex that contains a sulfonate N-heterocyclic carbene ligand was first reported 15 years ago. Since then, these organometallic entities have proven to be uniquely effective in catalyzing an assortment of enantioselective transformations, including allylic substitutions, conjugate additions, proto-boryl additions to alkenes, boryl and silyl substitutions, hydride-allyl additions to alkenyl boronates, and additions of boron-containing allyl moieties to N-H ketimines. In this review article, we detail the shortcomings in the state-of-the-art that fueled the development of this air stable ligand class, members of which can be prepared on multigram scale. For each reaction type, when relevant, the prior art at the time of the advance involving sulfonate NHC-Cu catalysts and/or subsequent key developments are briefly analyzed, and the relevance of the advance to efficient and enantioselective total or formal synthesis of biologically active molecules is underscored. Mechanistic analysis of the structural attributes of sulfonate NHC-Cu catalysts that are responsible for their ability to facilitate transformations with high efficiency as well as regio- and enantioselectivity are detailed. This review contains several formerly undisclosed methodological advances and mechanistic analyses, the latter of which constitute a revision of previously reported proposals.
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Affiliation(s)
- Amir H Hoveyda
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, MA, 02467, USA.,Supramolecular Science and Engineering Institute, University of Strasbourg, CNRS, 67000, Strasbourg, France
| | - Yuebiao Zhou
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, MA, 02467, USA
| | - Ying Shi
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, MA, 02467, USA
| | - M Kevin Brown
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, MA, 02467, USA
| | - Hao Wu
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, MA, 02467, USA
| | - Sebastian Torker
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, MA, 02467, USA.,Supramolecular Science and Engineering Institute, University of Strasbourg, CNRS, 67000, Strasbourg, France
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18
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Bartáček J, Váňa J, Drabina P, Svoboda J, Kocúrik M, Sedlák M. Recoverable polystyrene-supported palladium catalyst for construction of all-carbon quaternary stereocenters via asymmetric 1,4-addition of arylboronic acids to cyclic enones. REACT FUNCT POLYM 2020. [DOI: 10.1016/j.reactfunctpolym.2020.104615] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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19
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Becica J, Heath ORJ, Zheng CHM, Leitch DC. Palladium‐Catalyzed Cross‐Coupling of Alkenyl Carboxylates. Angew Chem Int Ed Engl 2020; 59:17277-17281. [DOI: 10.1002/anie.202006586] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Indexed: 11/06/2022]
Affiliation(s)
- Joseph Becica
- Department of Chemistry University of Victoria 3800 Finnerty Rd. Victoria BC V8P 5C2 Canada
| | - Oliver R. J. Heath
- Department of Chemistry University of Victoria 3800 Finnerty Rd. Victoria BC V8P 5C2 Canada
| | - Cameron H. M. Zheng
- Department of Chemistry University of Victoria 3800 Finnerty Rd. Victoria BC V8P 5C2 Canada
| | - David C. Leitch
- Department of Chemistry University of Victoria 3800 Finnerty Rd. Victoria BC V8P 5C2 Canada
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20
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Affiliation(s)
- Joseph Becica
- Department of Chemistry University of Victoria 3800 Finnerty Rd. Victoria BC V8P 5C2 Canada
| | - Oliver R. J. Heath
- Department of Chemistry University of Victoria 3800 Finnerty Rd. Victoria BC V8P 5C2 Canada
| | - Cameron H. M. Zheng
- Department of Chemistry University of Victoria 3800 Finnerty Rd. Victoria BC V8P 5C2 Canada
| | - David C. Leitch
- Department of Chemistry University of Victoria 3800 Finnerty Rd. Victoria BC V8P 5C2 Canada
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21
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Ramar T, Subbaiah MAM, Ilangovan A. Utility of Organoboron Reagents in Arylation of Cyclopropanols via Chelated Pd(II) Catalysis: Chemoselective Access to β-Aryl Ketones. J Org Chem 2020; 85:7711-7727. [DOI: 10.1021/acs.joc.0c00160] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Thangeswaran Ramar
- Discovery Chemistry, BBRC, Syngene, Biocon Park, Bommasandra IV Phase, Jigani Link Road, Bangalore 560099, India
- Department of Chemistry, Bharathidasan University, Palkalaiperur, Thiruchirapalli 620024, India
| | | | - Andivelu Ilangovan
- Department of Chemistry, Bharathidasan University, Palkalaiperur, Thiruchirapalli 620024, India
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22
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Ochi S, Xia Y, Dong G. Asymmetric Synthesis of 1-Tetralones Bearing A Remote Quaternary Stereocenter through Rh-Catalyzed C-C Activation of Cyclopentanones. Bull Chem Soc Jpn 2020; 93:1213-1217. [PMID: 34675442 PMCID: PMC8528243 DOI: 10.1246/bcsj.20200147] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Herein, we describe the preparation of 1-tetralones bearing a remote quaternary stereocenter in a highly enantioselective manner. A sequence of Pd-catalyzed asymmetric 1,4-addition and Rh-catalyzed enantiospecific C-C/C-H activation delivers diverse 1-tetralones with a C4 quaternary stereocenter, which are prepared in good overall yields and high enantioselectivity.
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Affiliation(s)
- Shusuke Ochi
- Department of Chemistry, University of Chicago, Chicago, Illinois 60637, United States
| | - Ying Xia
- Department of Chemistry, University of Chicago, Chicago, Illinois 60637, United States
| | - Guangbin Dong
- Department of Chemistry, University of Chicago, Chicago, Illinois 60637, United States
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23
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Baek D, Ryu H, Ryu JY, Lee J, Stoltz BM, Hong S. Catalytic enantioselective synthesis of tetrasubstituted chromanones via palladium-catalyzed asymmetric conjugate arylation using chiral pyridine-dihydroisoquinoline ligands. Chem Sci 2020; 11:4602-4607. [PMID: 33133484 PMCID: PMC7574023 DOI: 10.1039/d0sc00412j] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Accepted: 04/07/2020] [Indexed: 11/21/2022] Open
Abstract
Highly enantioselective conjugate addition reactions of arylboronic acids to 2-substituted chromones catalyzed by palladium complexes with new chiral Pyridine-Dihydroisoquinoline (PyDHIQ) ligands have been developed. These reactions provide highly enantioselective access to chromanones containing tetrasubstituted stereocenters. Various arylboronic acids and 2-substituted chromones can be used in the catalytic reaction to afford the chiral tetrasubstituted chromanones in good yields and excellent enantioselectivities (25 examples, up to 98% yields, up to 99% ee).
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Affiliation(s)
- Doohyun Baek
- Department of Chemistry , Gwangju Institute of Science and Technology , 123 Cheomdan-gwagiro, Buk-gu , Gwangju 61005 , Republic of Korea .
| | - Huijeong Ryu
- Department of Chemistry , Gwangju Institute of Science and Technology , 123 Cheomdan-gwagiro, Buk-gu , Gwangju 61005 , Republic of Korea .
| | - Ji Yeon Ryu
- Department of Chemistry , Chonnam National University , 77 Yongbong-ro, Buk-gu , Gwangju 61186 , Republic of Korea
| | - Junseong Lee
- Department of Chemistry , Chonnam National University , 77 Yongbong-ro, Buk-gu , Gwangju 61186 , Republic of Korea
| | - Brian M Stoltz
- The Warren and Katharine Schlinger Laboratory of Chemistry and Chemical Engineering , Division of Chemistry and Chemical Engineering , California Institute of Technology , Pasadena , CA 91125 , USA .
| | - Sukwon Hong
- Department of Chemistry , Gwangju Institute of Science and Technology , 123 Cheomdan-gwagiro, Buk-gu , Gwangju 61005 , Republic of Korea .
- School of Materials Science and Engineering , Gwangju Institute of Science and Technology , 123 Cheomdan-gwagiro, Buk-gu , Gwangju 61005 , Republic of Korea
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24
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25
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Lamb CJC, Vilela F, Lee AL. Pd(II)-Catalyzed Enantioselective Desymmetrization of Polycyclic Cyclohexenediones: Conjugate Addition versus Oxidative Heck. Org Lett 2019; 21:8689-8694. [PMID: 31613102 DOI: 10.1021/acs.orglett.9b03293] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Pd(II)-catalyzed desymmetrization of polycyclic cyclohexenediones has been achieved with high enantio- and diastereoselectivities. Up to five contiguous stereocenters are desymmetrized, while simultaneously, an additional stereocenter is created by the enantioselective conjugate addition. Surprisingly, the conjugate addition products dominate even under typical oxidative Heck conditions, and these observations may provide some insight into the competition between the two related reactions.
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Affiliation(s)
- Claire J C Lamb
- Institute of Chemical Sciences , Heriot-Watt University , Edinburgh EH14 4AS , Scotland , U.K
| | - Filipe Vilela
- Institute of Chemical Sciences , Heriot-Watt University , Edinburgh EH14 4AS , Scotland , U.K
| | - Ai-Lan Lee
- Institute of Chemical Sciences , Heriot-Watt University , Edinburgh EH14 4AS , Scotland , U.K
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26
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Thapa S, Dhungana RK, Dickie DA, Giri R. Isolation and characterization of (Ar)(F)B(OR)2Cs and (PN)CuAr complexes. Involvement of cationic copper(I) species during transmetalation of arylboron reagents with (PN)CuF. Tetrahedron 2019. [DOI: 10.1016/j.tet.2019.05.071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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27
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Matsumoto A, Asano K, Matsubara S. Kinetic Resolution of Acylsilane Cyanohydrins via Organocatalytic Cycloetherification. Chem Asian J 2019; 14:116-120. [PMID: 30408346 DOI: 10.1002/asia.201801600] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Revised: 11/07/2018] [Indexed: 12/15/2022]
Abstract
An asymmetric cyanation of acylsilanes involving the in-situ formation of chiral acylsilane cyanohydrins followed by their kinetic resolution via organocatalytic cycloetherification is described. The highly enantio- and diastereoselective cycloetherification was crucial for achieving a high efficiency in the kinetic resolution. Consequently, acylsilane cyanohydrins containing a tetrasubstituted chiral carbon atom bearing silyl, cyano, and hydroxy groups were obtained in an enantioenriched form. This protocol therefore offers an efficient catalytic approach to optically active acylsilane cyanohydrins, which exhibit potential as chiral building blocks for the synthesis of pharmaceutically relevant chiral organosilanes.
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Affiliation(s)
- Akira Matsumoto
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Kyotodaigaku-katsura, Nishikyo, Kyoto, 615-8510, Japan
| | - Keisuke Asano
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Kyotodaigaku-katsura, Nishikyo, Kyoto, 615-8510, Japan
| | - Seijiro Matsubara
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Kyotodaigaku-katsura, Nishikyo, Kyoto, 615-8510, Japan
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28
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Slack ED, Tancini PD, Colacot TJ. Process Economics and Atom Economy for Industrial Cross Coupling Applications via LnPd(0)-Based Catalysts. TOP ORGANOMETAL CHEM 2019. [DOI: 10.1007/3418_2019_28] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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29
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Gracia Retamosa M, Álvarez‐Casao Y, Matador E, Gómez Á, Monge D, Fernández R, Lassaletta JM. Pyridine‐Hydrazone Ligands in Asymmetric Palladium‐Catalyzed 1,4‐ and 1,6‐Additions of Arylboronic Acids to Cyclic (Di)enones. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201801021] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- María Gracia Retamosa
- Instituto Investigaciones Químicas (CSIC-US) Américo Vespucio 49 41092 Sevilla Spain
| | - Yolanda Álvarez‐Casao
- Departamento de Química OrgánicaUniversidad de Sevilla, C/Prof. García González, 1 41012 Sevilla Spain
| | - Esteban Matador
- Departamento de Química OrgánicaUniversidad de Sevilla, C/Prof. García González, 1 41012 Sevilla Spain
| | - Ángela Gómez
- Departamento de Química OrgánicaUniversidad de Sevilla, C/Prof. García González, 1 41012 Sevilla Spain
| | - David Monge
- Departamento de Química OrgánicaUniversidad de Sevilla, C/Prof. García González, 1 41012 Sevilla Spain
| | - Rosario Fernández
- Departamento de Química OrgánicaUniversidad de Sevilla, C/Prof. García González, 1 41012 Sevilla Spain
| | - José M. Lassaletta
- Instituto Investigaciones Químicas (CSIC-US) Américo Vespucio 49 41092 Sevilla Spain
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30
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Bokka A, Mao JX, Hartung J, Martinez SR, Simanis JA, Nam K, Jeon J, Shen X. Asymmetric Synthesis of Remote Quaternary Centers by Copper-Catalyzed Desymmetrization: An Enantioselective Total Synthesis of (+)-Mesembrine. Org Lett 2018; 20:5158-5162. [DOI: 10.1021/acs.orglett.8b02084] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Apparao Bokka
- Department of Chemistry and Biochemistry, University of Texas at Arlington, Arlington, Texas 76019, United States
| | - James X. Mao
- Department of Chemistry and Biochemistry, University of Texas at Arlington, Arlington, Texas 76019, United States
| | - John Hartung
- Process Research and Development, AbbVie, Inc., 1 North Waukegan Road, North Chicago, Illinois 60064, United States
| | - Steven R. Martinez
- Process Research and Development, AbbVie, Inc., 1 North Waukegan Road, North Chicago, Illinois 60064, United States
| | - Justin A. Simanis
- Process Research and Development, AbbVie, Inc., 1 North Waukegan Road, North Chicago, Illinois 60064, United States
| | - Kwangho Nam
- Department of Chemistry and Biochemistry, University of Texas at Arlington, Arlington, Texas 76019, United States
| | - Junha Jeon
- Department of Chemistry and Biochemistry, University of Texas at Arlington, Arlington, Texas 76019, United States
| | - Xiaoqiang Shen
- Process Research and Development, AbbVie, Inc., 1 North Waukegan Road, North Chicago, Illinois 60064, United States
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31
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Lee GS, Hong SH. Formal Giese addition of C(sp 3)-H nucleophiles enabled by visible light mediated Ni catalysis of triplet enone diradicals. Chem Sci 2018; 9:5810-5815. [PMID: 30079192 PMCID: PMC6050596 DOI: 10.1039/c8sc01827h] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2018] [Accepted: 06/08/2018] [Indexed: 12/28/2022] Open
Abstract
An unprecedented utilization of triplet excited enones in Ni-catalysis enabled a formal Giese addition of C(sp3)-H nucleophiles. This mechanism-based approach has greatly widened the reaction scope, allowing the synthesis of previously inaccessible structures. In this process, the enone diradical acted as two distinct reaction centers, participating in both metalation and hydrogen atom transfer, ultimately furnishing a range of formal Giese addition products in a highly general context. This reaction provides complementary access to traditional 1,4-addition reactions of enones, with a future perspective to develop triplet diradical-based transition metal catalysis.
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Affiliation(s)
- Geun Seok Lee
- Department of Chemistry , College of Natural Science , Seoul National University , 1 Gwanak-ro , Seoul 08826 , South Korea .
| | - Soon Hyeok Hong
- Department of Chemistry , College of Natural Science , Seoul National University , 1 Gwanak-ro , Seoul 08826 , South Korea .
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32
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Picazo E, Anthony SM, Giroud M, Simon A, Miller MA, Houk KN, Garg NK. Arynes and Cyclic Alkynes as Synthetic Building Blocks for Stereodefined Quaternary Centers. J Am Chem Soc 2018; 140:7605-7610. [PMID: 29716194 PMCID: PMC6467087 DOI: 10.1021/jacs.8b02875] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
We report a facile method to synthesize stereodefined quaternary centers from reactions of arynes and related strained intermediates using β-ketoester-derived substrates. The conversion of β-ketoesters to chiral enamines is followed by reaction with in situ generated strained arynes or cyclic alkynes. Hydrolytic workup provides the arylated or alkenylated products in enantiomeric excesses as high as 96%. We also describe the one-pot conversion of a β-ketoester substrate to the corresponding enantioenriched α-arylated product. Computations show how chirality is transferred from the N-bound chiral auxiliary to the final products. These are the first theoretical studies of aryne trapping by chiral nucleophiles to set new stereocenters. Our approach provides a solution to the challenging problem of stereoselective β-ketoester arylation/alkenylation, with formation of a quaternary center.
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Affiliation(s)
| | | | - Maude Giroud
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, United States
| | - Adam Simon
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, United States
| | - Margeaux A. Miller
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, United States
| | - K. N. Houk
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, United States
| | - Neil K. Garg
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, United States
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33
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Metz TL, Leng M, Evans J, Stanley LM. Synthesis of heteroarylated ketones via bismuth(III) triflate-promoted regioselective 1,4- and 1,6-additions of electron-rich heteroarenes to cyclic enones and dienones. Tetrahedron 2018; 74:3283-3292. [DOI: 10.1016/j.tet.2018.04.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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34
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Wang H, Bai Z, Jiao T, Deng Z, Tong H, He G, Peng Q, Chen G. Palladium-Catalyzed Amide-Directed Enantioselective Hydrocarbofunctionalization of Unactivated Alkenes Using a Chiral Monodentate Oxazoline Ligand. J Am Chem Soc 2018; 140:3542-3546. [DOI: 10.1021/jacs.8b00641] [Citation(s) in RCA: 102] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Hao Wang
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Zibo Bai
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Tangqian Jiao
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Zhiqiang Deng
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Huarong Tong
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Gang He
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300071, China
| | - Qian Peng
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Gong Chen
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300071, China
- Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
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35
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Ardkhean R, Mortimore M, Paton RS, Fletcher SP. Formation of quaternary centres by copper catalysed asymmetric conjugate addition to β-substituted cyclopentenones with the aid of a quantitative structure-selectivity relationship. Chem Sci 2018; 9:2628-2632. [PMID: 29675255 PMCID: PMC5892328 DOI: 10.1039/c7sc05304e] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2017] [Accepted: 02/02/2018] [Indexed: 12/24/2022] Open
Abstract
A new asymmetric conjugate addition method was developed for β-substituted cyclopentenones to form quaternary centres using alkylzirconocene nucleophiles giving up to 97% yield and 92% ee.
A new asymmetric conjugate addition method was developed for β-substituted cyclopentenones to form quaternary centres using alkylzirconocene nucleophiles giving up to 97% yield and 92% ee. Key to the reaction's success was the design of suitable phosphoramidite ligands which was aided by a linear quantitative structure–selectivity relationship (QSSR). QSSR models were created from the ligand screening data (a total of 36 ligands) which revealed important electronic and steric requirements and led to the synthesis of more enantioselective ligands. DFT calculations of competing transition structures enable the interpretation of the electronic and steric terms present in the QSSR models.
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Affiliation(s)
- Ruchuta Ardkhean
- Department of Chemistry , Colorado State University , Fort Collins , Colorado 80523 , USA .
| | - Mike Mortimore
- Vertex Pharmaceuticals (Europe) Ltd , 86-88 Jubilee Avenue, Milton Park , Abingdon , Oxfordshire OX14 4RW , UK
| | - Robert S Paton
- Department of Chemistry , Colorado State University , Fort Collins , Colorado 80523 , USA .
| | - Stephen P Fletcher
- Department of Chemistry , Colorado State University , Fort Collins , Colorado 80523 , USA .
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36
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Affiliation(s)
- Zhe Wang
- Division of Chemistry and Biological Chemistry; School of Physical and Mathematical Sciences; Nanyang Technological University; 21 Nanyang Link Singapore 637371 Singapore
| | - Tamio Hayashi
- Division of Chemistry and Biological Chemistry; School of Physical and Mathematical Sciences; Nanyang Technological University; 21 Nanyang Link Singapore 637371 Singapore
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37
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Wang Z, Hayashi T. Rhodium-Catalyzed Enantioposition-Selective Hydroarylation of Divinylphosphine Oxides with Aryl Boroxines. Angew Chem Int Ed Engl 2018; 57:1702-1706. [PMID: 29266704 DOI: 10.1002/anie.201712572] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2017] [Indexed: 01/12/2023]
Abstract
The rhodium-catalyzed hydroarylation of divinylphosphine oxides (RP(O)(CH=CH2 )2 ) with aryl boroxines ((ArBO)3 ) gives the corresponding monoarylation products (RP(O)(CH=CHAr)CH2 CH3 ) in high yields. One of the two vinyl groups in the phosphine oxide undergoes oxidative arylation while the other one is reduced to an ethyl moiety. These reactions proceed with high selectivity in terms of the enantiotopic vinyl groups in the presence of (R)-DTBM-segphos/Rh to give the P-stereogenic monoarylation products with high enantioselectivity.
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Affiliation(s)
- Zhe Wang
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore
| | - Tamio Hayashi
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore
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38
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Shan L, Wu G, Liu M, Gao W, Ding J, Huang X, Wu H. α,β-Diaryl unsaturated ketones via palladium-catalyzed ring-opening of cyclopropenones with organoboronic acids. Org Chem Front 2018. [DOI: 10.1039/c8qo00241j] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Palladium-catalyzed ring-opening acylation of cyclopropenones with organoboronic acids (aryl and vinylboronic acids) at room temperature has been developed to synthesise α,β-diaryl unsaturated ketones with good yields and excellent stereospecificity.
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Affiliation(s)
- Lidong Shan
- College of Chemistry and Materials Engineering
- Wenzhou University
- Wenzhou 325035
- People's Republic of China
| | - Ge Wu
- School of Pharmaceutical Science
- Wenzhou Medical University
- Wenzhou 325035
- People's Republic of China
| | - Miaochang Liu
- College of Chemistry and Materials Engineering
- Wenzhou University
- Wenzhou 325035
- People's Republic of China
| | - Wenxia Gao
- College of Chemistry and Materials Engineering
- Wenzhou University
- Wenzhou 325035
- People's Republic of China
| | - Jinchang Ding
- College of Chemistry and Materials Engineering
- Wenzhou University
- Wenzhou 325035
- People's Republic of China
| | - Xiaobo Huang
- College of Chemistry and Materials Engineering
- Wenzhou University
- Wenzhou 325035
- People's Republic of China
| | - Huayue Wu
- College of Chemistry and Materials Engineering
- Wenzhou University
- Wenzhou 325035
- People's Republic of China
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39
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Lestini E, Blackman LD, Zammit CM, Chen T, Williams RJ, Inam M, Couturaud B, O'Reilly RK. Palladium-polymer nanoreactors for the aqueous asymmetric synthesis of therapeutic flavonoids. Polym Chem 2018. [DOI: 10.1039/c7py02050c] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Polymeric core–shell micelles incorporating a chiral palladium pyridinooxazoline catalyst are presented as nanoreactors for the aqueous asymmetric synthesis of flavanones, a class of flavonoids, with therapeutic properties.
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Affiliation(s)
- E. Lestini
- University of Warwick
- Department of Chemistry
- Coventry
- UK
| | | | - C. M. Zammit
- University of Warwick
- Department of Chemistry
- Coventry
- UK
| | - T. Chen
- University of Warwick
- Department of Chemistry
- Coventry
- UK
- College of Materials and Textiles
| | | | - M. Inam
- University of Warwick
- Department of Chemistry
- Coventry
- UK
| | - B. Couturaud
- University of Warwick
- Department of Chemistry
- Coventry
- UK
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40
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Tamura M, Ogata H, Ishida Y, Takahashi Y. Design and synthesis of chiral 1,10-phenanthroline ligand, and application in palladium catalyzed asymmetric 1,4-addition reactions. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2017.08.041] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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41
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Abstract
The construction of quaternary centers is a common challenge in the synthesis of complex materials and natural products. Current cross-coupling strategies that can be generalized for setting these centers are sparse and, when known, are typically predicated on the use of reactive organometallic reagents. To address this shortcoming a new, photoredox-Ni dual catalytic strategy for the cross-coupling of tertiary organoboron reagents with aryl halides is reported. In addition to details on the cross-coupling scope and limitations, full screening efforts and mechanistic experiments are communicated.
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Affiliation(s)
- David N. Primer
- Roy and Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323
| | - Gary A. Molander
- Roy and Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323
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42
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Kadam AA, Ellern A, Stanley LM. Enantioselective, Palladium-Catalyzed Conjugate Additions of Arylboronic Acids to Form Bis-benzylic Quaternary Stereocenters. Org Lett 2017; 19:4062-4065. [DOI: 10.1021/acs.orglett.7b01825] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Abhishek A. Kadam
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, United States
| | - Arkady Ellern
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, United States
| | - Levi M. Stanley
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, United States
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43
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Abstract
Catalytic conjugate additions of heteroarenes to β,β-disubstituted enones are reported. Additions of a range of heteroarene nucleophiles, including furans, indoles, a pyrrole, and a thiophene, to a variety of β,β-disubstituted enones occur to form the corresponding ketone products containing heteroarylated, all-carbon quaternary centers in up to 90% yield. These reactions occur under mild reaction conditions in the presence of low loadings of bismuth triflate.
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Affiliation(s)
- Tanner L Metz
- Department of Chemistry, Iowa State University , Ames, Iowa 50011, United States
| | - Joshua Evans
- Department of Chemistry, Iowa State University , Ames, Iowa 50011, United States
| | - Levi M Stanley
- Department of Chemistry, Iowa State University , Ames, Iowa 50011, United States
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44
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Matsui JK, Lang SB, Heitz DR, Molander GA. Photoredox-Mediated Routes to Radicals: The Value of Catalytic Radical Generation in Synthetic Methods Development. ACS Catal 2017; 7:2563-2575. [PMID: 28413692 PMCID: PMC5388068 DOI: 10.1021/acscatal.7b00094] [Citation(s) in RCA: 412] [Impact Index Per Article: 58.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2017] [Revised: 02/17/2017] [Indexed: 01/19/2023]
Abstract
Photoredox catalysis has experienced a revitalized interest from the synthesis community during the past decade. For example, photoredox/Ni dual catalysis protocols have been developed to overcome several inherent limitations of palladium-catalyzed cross-couplings by invoking a single-electron transmetalation pathway. This Perspective highlights advances made by our laboratory since the inception of the photoredox/Ni cross-coupling of benzyltrifluoroborates with aryl bromides. In addition to broadening the scope of trifluoroborate coupling partners, research using readily oxidized hypervalent silicates as radical precursors that demonstrate functional group compatibility is highlighted. The pursuit of electrophilic coupling partners beyond (hetero)aryl bromides has also led to the incorporation of several new classes of C(sp2)-hybridized substrates into light-mediated cross-coupling. Advances to expand the radical toolbox by utilizing feedstock chemicals (e.g., aldehydes) to access radicals that were previously inaccessible from trifluoroborates and silicates are also emphasized. Additionally, several organic photocatalysts have been investigated as replacements for their expensive iridium- and ruthenium-based counterparts. Lastly, the net C-H functionalization of the radical partner in an effort to improve atom economy is presented. An underlying theme in all of these studies is the value of generating radicals in a catalytic manner, rather than stoichiometrically.
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Affiliation(s)
- Jennifer K. Matsui
- Roy and Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - Simon B. Lang
- Roy and Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - Drew R. Heitz
- Roy and Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - Gary A. Molander
- Roy and Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
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45
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Abstract
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Utilizing
photoredox/nickel dual catalysis, diverse flavanones
have been synthesized by coupling novel 2-trifluoroboratochromanone
building blocks with aryl and heteroaryl bromide partners. The newly
reported trifluoroboratochromanones can be easily accessed
from the corresponding chromones on multigram scale. This represents
a general route for accessing natural and unnatural flavanones that
were previously formed through a synthetically more restrictive ring
closure route from chalcone precursors.
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Affiliation(s)
- Jennifer K Matsui
- Roy and Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania , 231 South 34th Street, Philadelphia, Pennsylvania 19104-6323, United States
| | - Gary A Molander
- Roy and Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania , 231 South 34th Street, Philadelphia, Pennsylvania 19104-6323, United States
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46
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Chinthakindi PK, Govender KB, Kumar AS, Kruger HG, Govender T, Naicker T, Arvidsson PI. A Synthesis of “Dual Warhead” β-Aryl Ethenesulfonyl Fluorides and One-Pot Reaction to β-Sultams. Org Lett 2017; 19:480-483. [DOI: 10.1021/acs.orglett.6b03634] [Citation(s) in RCA: 77] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | | | - A. Sanjeeva Kumar
- Catalysis
and Peptide Research Unit, University of KwaZulu-Natal, Durban, South Africa
| | - Hendrik G. Kruger
- Catalysis
and Peptide Research Unit, University of KwaZulu-Natal, Durban, South Africa
| | - Thavendran Govender
- Catalysis
and Peptide Research Unit, University of KwaZulu-Natal, Durban, South Africa
| | - Tricia Naicker
- Catalysis
and Peptide Research Unit, University of KwaZulu-Natal, Durban, South Africa
| | - Per I. Arvidsson
- Catalysis
and Peptide Research Unit, University of KwaZulu-Natal, Durban, South Africa
- Science for Life Laboratory, Drug Discovery & Development Platform & Division of Translational Medicine and Chemical Biology, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden
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47
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Yasukawa T, Miyamura H, Kobayashi S. Chiral Ligand-Modified Metal Nanoparticles as Unique Catalysts for Asymmetric C–C Bond-Forming Reactions: How Are Active Species Generated? ACS Catal 2016. [DOI: 10.1021/acscatal.6b02446] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Tomohiro Yasukawa
- Department of Chemistry,
School of Science, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Hiroyuki Miyamura
- Department of Chemistry,
School of Science, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Shu̅ Kobayashi
- Department of Chemistry,
School of Science, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
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48
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Bürki C, Whyte A, Arndt S, Hashmi ASK, Lautens M. Expanding the Scope of the Gold(I)-Catalyzed Rautenstrauch Rearrangement: Protic Additives. Org Lett 2016; 18:5058-5061. [DOI: 10.1021/acs.orglett.6b02505] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Cédric Bürki
- Davenport
Research Laboratories, Department of Chemistry, University of Toronto, Toronto M5S 3H6, Canada
| | - Andrew Whyte
- Davenport
Research Laboratories, Department of Chemistry, University of Toronto, Toronto M5S 3H6, Canada
| | - Sebastian Arndt
- Organisch-Chemisches
Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuheimer
Feld 270, 69120 Heidelberg, Germany
| | - A. Stephen K. Hashmi
- Organisch-Chemisches
Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuheimer
Feld 270, 69120 Heidelberg, Germany
- Chemistry
Department, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Mark Lautens
- Davenport
Research Laboratories, Department of Chemistry, University of Toronto, Toronto M5S 3H6, Canada
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49
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Zhou Y, Rao C, Song Q. Z-Selective Synthesis of γ,δ-Unsaturated Ketones via Pd-Catalyzed Ring Opening of 2-Alkylenecyclobutanones with Arylboronic Acids. Org Lett 2016; 18:4000-3. [PMID: 27479861 DOI: 10.1021/acs.orglett.6b01816] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Pd-catalyzed 1,2-addition (instead of 1,4-addition) of arylboronic acids to 2-alkylenecyclobutanones followed by β-carbon elimination from the resulting palladium cyclobutanolates to afford γ,δ-unsaturated ketones was developed. The desired γ,δ-unsaturated ketones were obtained in good to excellent yields with Z/E selectivities of up to >99:1 and a broad spectrum of functional group tolerability.
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Affiliation(s)
- Yao Zhou
- Institute of Next Generation Matter Transformation, College of Chemical Engineering, College of Materials Science & Engineering at Huaqiao University , 668 Jimei Boulevard, Xiamen, Fujian 361021, P. R. China
| | - Changqing Rao
- Institute of Next Generation Matter Transformation, College of Chemical Engineering, College of Materials Science & Engineering at Huaqiao University , 668 Jimei Boulevard, Xiamen, Fujian 361021, P. R. China
| | - Qiuling Song
- Institute of Next Generation Matter Transformation, College of Chemical Engineering, College of Materials Science & Engineering at Huaqiao University , 668 Jimei Boulevard, Xiamen, Fujian 361021, P. R. China.,National Laboratory for Molecular Sciences, Institute of Chemistry , Beijing 100190, P. R. China
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50
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Ji J, Yang Z, Liu R, Ni Y, Lin S, Pan Q. Pd(II)/bipyridine catalyzed conjugate addition of arylboronic acids to α,β-unsaturated amides. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.05.022] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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