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Hoveyda AH, Qin C, Sui XZ, Liu Q, Li X, Nikbakht A. Taking Olefin Metathesis to the Limit: Stereocontrolled Synthesis of Trisubstituted Alkenes. Acc Chem Res 2023; 56:2426-2446. [PMID: 37643361 DOI: 10.1021/acs.accounts.3c00341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/31/2023]
Abstract
ConspectusIn this Account, we share the story of the development of catalytic olefin metathesis processes that efficiently deliver a wide range of acyclic and macrocyclic E- or Z-trisubstituted alkenes. The tale starts with us unveiling, in collaboration with Richard Schrock and his team, the blueprint in 2009 for the design of kinetically controlled Z-selective olefin metathesis reactions. This paved the way for the development of Mo-, W-, and Ru-based catalysts and strategies for synthesizing countless linear and macrocyclic Z-olefins. Six years later, in 2015, we found that abundant Z-alkene feedstocks, such as oleic acid, can be directly transformed to high-value and more difficult-to-access alkenes through a cross-metathesis reaction promoted by a Ru-catechothiolate complex that we had developed; the approach, later coined stereoretentive olefin metathesis, was extended to the synthesis of E-alkenes.It was all about disubstituted alkenes until when in 2017 we addressed the challenge of accessing stereodefined Z- and E-trisubstituted alkenes, key to medicine and materials research. These transformations can be most effectively catalyzed by Mo monoaryloxides pyrrolide (MAP) and chloride (MAC) complexes. A central aspect of the advance is the merging of olefin metathesis, which delivered trisubstituted alkenyl fluorides, chlorides, and bromides with cross-coupling. These catalytic and stereoretentive transformations can be used in various combinations, thereby enabling access to assorted Z- or E-trisubstituted alkene. Ensuing work led to the emergence of other transformations involving substrates that can be purchased with high stereoisomeric purity, notably E- and Z-trihalo alkenes. Trisubstituted olefins, Z or E, bearing a chemoselectively and stereoretentively alterable F,Cl-terminus or B(pin),Cl-terminus may, thus, be easily and reliably synthesized. Methods for stereoretentive preparation of other alkenyl bromide regioisomers and α,β-unsaturated carboxylic and thiol esters, nitriles, and acid fluorides followed, along with stereoretentive ring-closing metathesis reactions that afford macrocyclic trisubstituted olefins. Z- and E-Macrocyclic trisubstituted olefins, including those that contain little or no entropic support for cyclization (minimally functionalized) and/or are disfavored under substrate-controlled conditions, can now be synthesized. The utility of this latest chapter in the history of olefin metathesis has been highlighted by applications to the synthesis of several biologically active compounds, as well as their analogues, such as those marked by one or more site-specifically incorporated fluorine atoms or more active but higher energy and otherwise unobtainable conformers.The investigations discussed here, which represent every stereoretentive method that has been reported thus far for preparing a trisubstituted olefin, underscore the inimitable power of Mo-based catalysts. This Account also showcases a variety of mechanistic attributes─some for the first time, and each instrumental in solving a problem. Extensive knowledge of mechanistic nuances will be needed if we are to address successfully the next challenging problem, namely, the development of catalysts and strategies that may be used to synthesize a wide range of tetrasubstituted alkenes, especially those that are readily modifiable, with high stereoisomeric purity.
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Affiliation(s)
- Amir H Hoveyda
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467, United States
- Supramolecular Science and Engineering Institute, University of Strasbourg, CNRS, 67000 Strasbourg France
| | - Can Qin
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467, United States
- Supramolecular Science and Engineering Institute, University of Strasbourg, CNRS, 67000 Strasbourg France
| | - Xin Zhi Sui
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467, United States
| | - Qinghe Liu
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467, United States
| | - Xinghan Li
- Supramolecular Science and Engineering Institute, University of Strasbourg, CNRS, 67000 Strasbourg France
| | - Ali Nikbakht
- Supramolecular Science and Engineering Institute, University of Strasbourg, CNRS, 67000 Strasbourg France
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2
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Qin C, Koengeter T, Zhao F, Mu Y, Liu F, Houk KN, Hoveyda AH. Z-Trisubstituted α,β-Unsaturated Esters and Acid Fluorides through Stereocontrolled Catalytic Cross-Metathesis. J Am Chem Soc 2023; 145:3748-3762. [PMID: 36720176 PMCID: PMC10075318 DOI: 10.1021/jacs.2c13245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Catalytic cross-metathesis (CM) reactions that can generate trisubstituted alkenes in high stereoisomeric purity are important but remain limited in scope. Here, CM reactions are introduced that generate Z-trisubstituted α-methyl, α,β-unsaturated, alkyl and aryl esters, thiol esters, and acid fluorides. Transformations are promoted by a Mo bis-aryloxide, a monoaryloxide pyrrolide, or a monoaryloxide chloride complex; air-stable and commercially available paraffin tablets containing a Mo complex may also be used. Alkyl, aryl, and silyl carboxylic esters as well as thiol esters and acid fluoride reagents are either purchasable or can be prepared in one step. Products were obtained in 55-95% yield and in 88:12->98:2 Z/E ratio (typically >95:5). The applicability of the approach is highlighted by a two-step conversion of citronellol to an isomintlactone precursor (1.7 g, 73% yield, and 97:3 Z/E) and a single-step transformation of lanosterol acetate to 3-epi-anwuweizic acid (72% yield and 94:6 Z/E). Included are the outcomes of DFT studies, regarding several initially puzzling catalyst activity trends, providing the following information: (1) it is key that a disubstituted Mo alkylidene, generated by a competing homo-metathesis (HM) pathway, can re-enter the productive CM cycle. (2) Whereas in a CM cycle the formation of a molybdacyclobutane is likely turnover-limiting, the collapse of related metallacycles in a HM cycle is probably rate-determining. It is therefore the relative energy barrier required for these steps that determines whether CM or HM is dominant with a particular complex.
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Affiliation(s)
- Can Qin
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467, USA
- Supramolecular Science and Engineering Institute, University of Strasbourg, CNRS, 67000 Strasbourg, France
| | - Tobias Koengeter
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467, USA
| | - Fengyue Zhao
- College of Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Yucheng Mu
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467, USA
| | - Fang Liu
- College of Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - K. N. Houk
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, USA
| | - Amir H. Hoveyda
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467, USA
- Supramolecular Science and Engineering Institute, University of Strasbourg, CNRS, 67000 Strasbourg, France
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Xu Y, Gan Q, Samkian AE, Ko JH, Grubbs RH. Bulky Cyclometalated Ruthenium Nitrates for Challenging
Z
‐Selective Metathesis: Efficient One‐Step Access to α‐Oxygenated
Z
‐Olefins from Acrylates and Allyl Alcohols. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202113089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Yan Xu
- Arnold and Mabel Beckman Laboratory of Chemical Synthesis Division of Chemistry and Chemical Engineering California Institute of Technology Pasadena California 91125 United States
| | - Quan Gan
- Arnold and Mabel Beckman Laboratory of Chemical Synthesis Division of Chemistry and Chemical Engineering California Institute of Technology Pasadena California 91125 United States
| | - Adrian E. Samkian
- Arnold and Mabel Beckman Laboratory of Chemical Synthesis Division of Chemistry and Chemical Engineering California Institute of Technology Pasadena California 91125 United States
| | - Jeong Hoon Ko
- Arnold and Mabel Beckman Laboratory of Chemical Synthesis Division of Chemistry and Chemical Engineering California Institute of Technology Pasadena California 91125 United States
| | - Robert H. Grubbs
- Arnold and Mabel Beckman Laboratory of Chemical Synthesis Division of Chemistry and Chemical Engineering California Institute of Technology Pasadena California 91125 United States
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4
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Chérif SE, Ghosh A, Chelli S, Dixon IM, Kraiem J, Lakhdar S. Merging Grubbs second-generation catalyst with photocatalysis enables Z-selective metathesis of olefins: scope, limitations, and mechanism. Chem Sci 2022; 13:12065-12070. [PMID: 36349104 PMCID: PMC9600307 DOI: 10.1039/d2sc03961c] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Accepted: 09/13/2022] [Indexed: 11/28/2022] Open
Abstract
Olefin cross-metathesis is a cornerstone reaction in organic synthesis where stereoselectivity is typically governed by the structure of the catalyst. In this work, we show that merging Grubbs second generation catalyst, a classical E-selective catalyst, with a readily available photocatalyst, enables the exclusive formation of the contra-thermodynamic Z-isomer. The scope and limitations of this unprecedented approach are discussed based on both computational and experimental mechanistic data. Light is magic! The combination of Grubbs second generation catalyst, a well-known catalyst for E-selective olefin metathesis, with a photosensitizer enables efficient access to the contra-thermodynamic Z-isomers.![]()
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Affiliation(s)
- Saïf Eddine Chérif
- CNRS, Université Paul Sabatier, Laboratoire Hétérochimie Fondamentale et Appliquée (LHFA, UMR5069), 118 Route de Narbonne, 31062 Cedex 09 Toulouse, France
- Laboratoire de Développement Chimique, Galénique et Pharmacologique des Médicaments, Faculté de Pharmacie de Monastir, Université de Monastir, Rue Avicenne, 5000 Monastir, Tunisia
| | - Avisek Ghosh
- CNRS, Université Paul Sabatier, Laboratoire Hétérochimie Fondamentale et Appliquée (LHFA, UMR5069), 118 Route de Narbonne, 31062 Cedex 09 Toulouse, France
| | - Saloua Chelli
- CNRS, Université Paul Sabatier, Laboratoire Hétérochimie Fondamentale et Appliquée (LHFA, UMR5069), 118 Route de Narbonne, 31062 Cedex 09 Toulouse, France
| | - Isabelle M. Dixon
- Université de Toulouse, CNRS, Université Paul Sabatier, Laboratoire de Chimie et Physique Quantiques, 118 route de Narbonne, 31062 Toulouse, France
| | - Jamil Kraiem
- Laboratoire de Développement Chimique, Galénique et Pharmacologique des Médicaments, Faculté de Pharmacie de Monastir, Université de Monastir, Rue Avicenne, 5000 Monastir, Tunisia
| | - Sami Lakhdar
- CNRS, Université Paul Sabatier, Laboratoire Hétérochimie Fondamentale et Appliquée (LHFA, UMR5069), 118 Route de Narbonne, 31062 Cedex 09 Toulouse, France
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5
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Xu Y, Gan Q, Samkian AE, Ko JH, Grubbs RH. Bulky Cyclometalated Ruthenium Nitrates for Challenging Z-Selective Metathesis: Efficient One-Step Access to α-Oxygenated Z-Olefins from Acrylates and Allyl Alcohols. Angew Chem Int Ed Engl 2021; 61:e202113089. [PMID: 34779113 DOI: 10.1002/anie.202113089] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Indexed: 11/09/2022]
Abstract
α-Oxygenated Z-olefins are ubiquitous in biologically active molecules and serve as versatile handles for organic synthesis, but their syntheses are often tedious and less selective. Here we report the efficient Z-selective metathesis of various terminal acrylates and allyl alcohols, which enables facile and selective construction of high value-added α-oxygenated Z-olefins from readily available feedstock chemicals. These challenging metathesis transformations are enabled by novel cyclometalated Ru-carbene-nitrate complexes bearing bulky-yet-flexible side arms, whose assembly was unlocked by new organometallic syntheses.
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Affiliation(s)
- Yan Xu
- Arnold and Mabel Beckman Laboratory of Chemical Synthesis, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California, 91125, United States
| | - Quan Gan
- Arnold and Mabel Beckman Laboratory of Chemical Synthesis, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California, 91125, United States
| | - Adrian E Samkian
- Arnold and Mabel Beckman Laboratory of Chemical Synthesis, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California, 91125, United States
| | - Jeong Hoon Ko
- Arnold and Mabel Beckman Laboratory of Chemical Synthesis, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California, 91125, United States
| | - Robert H Grubbs
- Arnold and Mabel Beckman Laboratory of Chemical Synthesis, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California, 91125, United States
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6
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Xu Y, Wong JJ, Samkian AE, Ko JH, Chen S, Houk KN, Grubbs RH. Efficient Z-Selective Olefin-Acrylamide Cross-Metathesis Enabled by Sterically Demanding Cyclometalated Ruthenium Catalysts. J Am Chem Soc 2020; 142:20987-20993. [DOI: 10.1021/jacs.0c11334] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Yan Xu
- Arnold and Mabel Beckman Laboratory of Chemical Synthesis, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
| | - Jonathan J. Wong
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095-1569, United States
| | - Adrian E. Samkian
- Arnold and Mabel Beckman Laboratory of Chemical Synthesis, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
| | - Jeong Hoon Ko
- Arnold and Mabel Beckman Laboratory of Chemical Synthesis, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
| | - Shuming Chen
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095-1569, United States
| | - K. N. Houk
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095-1569, United States
| | - Robert H. Grubbs
- Arnold and Mabel Beckman Laboratory of Chemical Synthesis, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
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7
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Hoveyda AH, Liu Z, Qin C, Koengeter T, Mu Y. Impact of Ethylene on Efficiency and Stereocontrol in Olefin Metathesis: When to Add It, When to Remove It, and When to Avoid It. Angew Chem Int Ed Engl 2020; 59:22324-22348. [DOI: 10.1002/anie.202010205] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2020] [Revised: 09/02/2020] [Indexed: 12/24/2022]
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
| | - Zhenxing Liu
- Supramolecular Science and Engineering Institute University of Strasbourg CNRS 67000 Strasbourg France
| | - Can Qin
- Department of Chemistry Merkert Chemistry Center Boston College Chestnut Hill MA 02467 USA
| | - Tobias Koengeter
- Department of Chemistry Merkert Chemistry Center Boston College Chestnut Hill MA 02467 USA
| | - Yucheng Mu
- Department of Chemistry Merkert Chemistry Center Boston College Chestnut Hill MA 02467 USA
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8
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Hoveyda AH, Liu Z, Qin C, Koengeter T, Mu Y. Impact of Ethylene on Efficiency and Stereocontrol in Olefin Metathesis: When to Add It, When to Remove It, and When to Avoid It. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202010205] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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
| | - Zhenxing Liu
- Supramolecular Science and Engineering Institute University of Strasbourg CNRS 67000 Strasbourg France
| | - Can Qin
- Department of Chemistry Merkert Chemistry Center Boston College Chestnut Hill MA 02467 USA
| | - Tobias Koengeter
- Department of Chemistry Merkert Chemistry Center Boston College Chestnut Hill MA 02467 USA
| | - Yucheng Mu
- Department of Chemistry Merkert Chemistry Center Boston College Chestnut Hill MA 02467 USA
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9
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Hubert P, Seibel E, Beemelmanns C, Campagne J, Figueiredo RM. Stereoselective Construction of (
E,Z
)‐1,3‐Dienes and Its Application in Natural Product Synthesis. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000730] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Pierre Hubert
- ICGM Univ Montpellier, CNRS, ENSCM Montpellier France
| | - Elena Seibel
- Hans-Knöll-Institute (HKI) Beutenbergstrasse 11a 07745 Jena Germany
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10
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Renom-Carrasco M, Mania P, Sayah R, Veyre L, Occhipinti G, Jensen VR, Thieuleux C. Silica-supported Z-selective Ru olefin metathesis catalysts. MOLECULAR CATALYSIS 2020. [DOI: 10.1016/j.mcat.2019.110743] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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11
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Hugelshofer CL, Palani V, Sarpong R. Calyciphylline B-type Alkaloids: Evolution of a Synthetic Strategy to (−)-Daphlongamine H. J Org Chem 2019; 84:14069-14091. [DOI: 10.1021/acs.joc.9b02223] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Cedric L. Hugelshofer
- Department of Chemistry, University of California Berkeley, Berkeley, California 94720, United States
| | - Vignesh Palani
- Department of Chemistry, University of California Berkeley, Berkeley, California 94720, United States
| | - Richmond Sarpong
- Department of Chemistry, University of California Berkeley, Berkeley, California 94720, United States
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12
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Liu Z, Xu C, del Pozo J, Torker S, Hoveyda AH. Ru-Based Catechothiolate Complexes Bearing an Unsaturated NHC Ligand: Effective Cross-Metathesis Catalysts for Synthesis of (Z)-α,β-Unsaturated Esters, Carboxylic Acids, and Primary, Secondary, and Weinreb Amides. J Am Chem Soc 2019; 141:7137-7146. [DOI: 10.1021/jacs.9b02318] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Zhenxing Liu
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467, United States
| | - Chaofan Xu
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467, United States
| | - Juan del Pozo
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467, United States
| | - Sebastian Torker
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467, United States
- Supramolecular Science and Engineering Institute, University of Strasbourg, CNRS, 67000 Strasbourg, France
| | - Amir H. Hoveyda
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467, United States
- Supramolecular Science and Engineering Institute, University of Strasbourg, CNRS, 67000 Strasbourg, France
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13
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Schowner R, Frey W, Buchmeiser MR. Understanding Synthetic Peculiarities of Cationic Molybdenum(VI) Imido Alkylidene N-Heterocyclic Carbene Complexes. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201900021] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Roman Schowner
- Institute of Polymer Chemistry; University of Stuttgart; Pfaffenwaldring 55 70569 Stuttgart Germany
| | - Wolfgang Frey
- Institute of Organic Chemistry; University of Stuttgart; Pfaffenwaldring 55 70569 Stuttgart Germany
| | - Michael R. Buchmeiser
- Institute of Polymer Chemistry; University of Stuttgart; Pfaffenwaldring 55 70569 Stuttgart Germany
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14
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Chattopadhyay SK, Ghosh S, Sil S. Cross metathesis-mediated synthesis of hydroxamic acid derivatives. Beilstein J Org Chem 2019; 14:3070-3075. [PMID: 30643583 PMCID: PMC6317413 DOI: 10.3762/bjoc.14.285] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2018] [Accepted: 11/29/2018] [Indexed: 12/03/2022] Open
Abstract
An alternative synthesis of α,ß-unsaturated hydroxamates via cross metathesis between a class-I olefin and N-benzyloxyacrylamide is reported. The reaction proceeds better in the presence of Grubbs’ second generation catalyst within short time and in good yields (57–85%) with a range of substrates. Subsequent hydrogenation of each of the CM products delivers the title compounds in moderate to very good yield (70–89%). An important demonstration of the protocol is the preparation of the unusual amino acid component of the bioactive cyclic peptide Chap-31.
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Affiliation(s)
| | - Subhankar Ghosh
- Department of Chemistry, University of Kalyani, Kalyani - 741235, West Bengal, India
| | - Suman Sil
- Department of Chemistry, University of Kalyani, Kalyani - 741235, West Bengal, India
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15
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Teskey CJ, Adler P, Gonçalves CR, Maulide N. Chemoselective α,β-Dehydrogenation of Saturated Amides. Angew Chem Int Ed Engl 2019; 58:447-451. [PMID: 30332524 PMCID: PMC6348382 DOI: 10.1002/anie.201808794] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Revised: 10/10/2018] [Indexed: 01/12/2023]
Abstract
We report a method for the selective α,β-dehydrogenation of amides in the presence of other carbonyl moieties under mild conditions. Our strategy relies on electrophilic activation coupled to in situ selective selenium-mediated dehydrogenation. The α,β-unsaturated products were obtained in moderate to excellent yields, and their synthetic versatility was demonstrated by a range of transformations. Mechanistic experiments suggest formation of an electrophilic SeIV species.
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Affiliation(s)
- Christopher J. Teskey
- University of ViennaInstitute of Organic ChemistryWähringer Strasse 381090ViennaAustria
| | - Pauline Adler
- University of ViennaInstitute of Organic ChemistryWähringer Strasse 381090ViennaAustria
| | - Carlos R. Gonçalves
- University of ViennaInstitute of Organic ChemistryWähringer Strasse 381090ViennaAustria
| | - Nuno Maulide
- University of ViennaInstitute of Organic ChemistryWähringer Strasse 381090ViennaAustria
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16
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Teskey CJ, Adler P, Gonçalves CR, Maulide N. Chemoselektive α,β‐Dehydrierung von gesättigten Amiden. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201808794] [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)
- Christopher J. Teskey
- Universität WienInstitut für organische Chemie Währinger Straße 38 1090 Wien Österreich
| | - Pauline Adler
- Universität WienInstitut für organische Chemie Währinger Straße 38 1090 Wien Österreich
| | - Carlos R. Gonçalves
- Universität WienInstitut für organische Chemie Währinger Straße 38 1090 Wien Österreich
| | - Nuno Maulide
- Universität WienInstitut für organische Chemie Währinger Straße 38 1090 Wien Österreich
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17
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Schowner R, Elser I, Toth F, Robe E, Frey W, Buchmeiser MR. Mono- and Bisionic Mo- and W-Based Schrock Catalysts for Biphasic Olefin Metathesis Reactions in Ionic Liquids. Chemistry 2018; 24:13336-13347. [DOI: 10.1002/chem.201802472] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Revised: 07/02/2018] [Indexed: 11/12/2022]
Affiliation(s)
- Roman Schowner
- Institute of Polymer Chemistry; University of Stuttgart; Pfaffenwaldring 55 70569 Stuttgart Germany
| | - Iris Elser
- Institute of Polymer Chemistry; University of Stuttgart; Pfaffenwaldring 55 70569 Stuttgart Germany
| | - Florian Toth
- XiMo Hungary Kft.; Záhony u. 7 H-1031 Budapest Hungary
| | - Emmanuel Robe
- XiMo Hungary Kft.; Záhony u. 7 H-1031 Budapest Hungary
| | - Wolfgang Frey
- Institute of Organic Chemistry; University of Stuttgart; Pfaffenwaldring 55 70569 Stuttgart Germany
| | - Michael R. Buchmeiser
- Institute of Polymer Chemistry; University of Stuttgart; Pfaffenwaldring 55 70569 Stuttgart Germany
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18
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Dumas A, Müller DS, Curbet I, Toupet L, Rouen M, Baslé O, Mauduit M. Synthesis and Application of Stereoretentive Ruthenium Catalysts on the Basis of the M7 and the Ru–Benzylidene–Oxazinone Design. Organometallics 2018. [DOI: 10.1021/acs.organomet.7b00836] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Adrien Dumas
- Univ Rennes, Ecole Nationale Supérieure de Chimie de Rennes, CNRS, ISCR-UMR 6226, F-35000 Rennes, France
- DEMETA SAS, 6 rue Pierre-Joseph Colin, 35000 Rennes, France
| | - Daniel S. Müller
- Univ Rennes, Ecole Nationale Supérieure de Chimie de Rennes, CNRS, ISCR-UMR 6226, F-35000 Rennes, France
| | - Idriss Curbet
- Univ Rennes, Ecole Nationale Supérieure de Chimie de Rennes, CNRS, ISCR-UMR 6226, F-35000 Rennes, France
| | - Loïc Toupet
- Institut de Physique de Rennes, Université Rennes 1, CNRS UMR 6251, 263 Av. Général Leclerc, 35042 Rennes, France
| | - Mathieu Rouen
- DEMETA SAS, 6 rue Pierre-Joseph Colin, 35000 Rennes, France
| | - Olivier Baslé
- Univ Rennes, Ecole Nationale Supérieure de Chimie de Rennes, CNRS, ISCR-UMR 6226, F-35000 Rennes, France
| | - Marc Mauduit
- Univ Rennes, Ecole Nationale Supérieure de Chimie de Rennes, CNRS, ISCR-UMR 6226, F-35000 Rennes, France
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19
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Padarti A, Han H. Rationally Designed Chiral Synthons Enabling Asymmetric Z- and E-Selective Vinylogous Aldol Reactions of Aldehydes. Org Lett 2018; 20:1448-1452. [PMID: 29470081 DOI: 10.1021/acs.orglett.8b00230] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
In a conceptually different approach, highly stereoselective 2-oxonia-Cope rearrangement reactions between rationally designed nonracemic vinylogous aldolation synthons and aldehydes are described to provide δ-hydroxy-α,β-unsaturated esters with excellent enantioselectivities and, for the first time, unprecedented Z- and E-selectivities without the regioselectivity issue.
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Affiliation(s)
- Akhil Padarti
- Department of Chemistry, University of Texas at San Antonio , San Antonio, Texas 78249, United States
| | - Hyunsoo Han
- Department of Chemistry, University of Texas at San Antonio , San Antonio, Texas 78249, United States
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20
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The chemistry of the carbon-transition metal double and triple bond: Annual survey covering the year 2016. Coord Chem Rev 2018. [DOI: 10.1016/j.ccr.2017.09.003] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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21
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Thomas BN, Moon PJ, Yin S, Brown A, Lundgren RJ. Z-Selective iridium-catalyzed cross-coupling of allylic carbonates and α-diazo esters. Chem Sci 2018; 9:238-244. [PMID: 29629093 PMCID: PMC5869292 DOI: 10.1039/c7sc04283c] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2017] [Accepted: 10/23/2017] [Indexed: 12/19/2022] Open
Abstract
A well-defined Ir-allyl complex catalyzes the Z-selective cross-coupling of allyl carbonates with α-aryl diazo esters. The process overrides the large thermodynamic preference for E-products typically observed in metal-mediated coupling reactions to enable the synthesis of Z,E-dieneoates in good yield with selectivities consistently approaching or greater than 90 : 10. This transformation represents the first productive merger of Ir-carbene and Ir-allyl species, which are commonly encountered intermediates in allylation and cyclopropanation/E-H insertion catalysis. Potentially reactive functional groups (aryl halides, ketones, nitriles, olefins, amines) are tolerated owing to the mildness of reaction conditions. Kinetic analysis of the reaction suggests oxidative addition of the allyl carbonate to an Ir-species is rate-determining. Mechanistic studies uncovered a pathway for catalyst activation mediated by NEt3.
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Affiliation(s)
- Bryce N Thomas
- Department of Chemistry , University of Alberta , Edmonton , Alberta T6G 2G2 , Canada .
| | - Patrick J Moon
- Department of Chemistry , University of Alberta , Edmonton , Alberta T6G 2G2 , Canada .
| | - Shengkang Yin
- Department of Chemistry , University of Alberta , Edmonton , Alberta T6G 2G2 , Canada .
| | - Alex Brown
- Department of Chemistry , University of Alberta , Edmonton , Alberta T6G 2G2 , Canada .
| | - Rylan J Lundgren
- Department of Chemistry , University of Alberta , Edmonton , Alberta T6G 2G2 , Canada .
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22
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Lienert C, Frey W, Buchmeiser MR. Stereoselective Ring-Opening Metathesis Polymerization with Molybdenum Imido Alkylidenes Containing O-Chelating N-Heterocyclic Carbenes: Influence of Syn/Anti Interconversion and Polymerization Rates on Polymer Structure. Macromolecules 2017. [DOI: 10.1021/acs.macromol.7b00841] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
| | | | - Michael R. Buchmeiser
- German Institutes
of Textile and Fiber Research (DITF), Körschtalstr. 26, D-73770 Denkendorf, Germany
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23
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Edwards JT, Merchant RR, McClymont KS, Knouse KW, Qin T, Malins LR, Vokits B, Shaw SA, Bao DH, Wei FL, Zhou T, Eastgate MD, Baran PS. Decarboxylative alkenylation. Nature 2017; 545:213-218. [PMID: 28424520 PMCID: PMC5478194 DOI: 10.1038/nature22307] [Citation(s) in RCA: 247] [Impact Index Per Article: 35.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2016] [Accepted: 03/20/2017] [Indexed: 12/23/2022]
Abstract
Olefin chemistry, through pericyclic reactions, polymerizations, oxidations, or reductions, plays an essential role in the foundation of how organic matter is manipulated.1 Despite its importance, olefin synthesis still largely relies upon chemistry invented more than three decades ago, with metathesis2 being the most recent addition. Here we describe a simple method to access olefins with any substitution pattern or geometry from one of the most ubiquitous and variegated building blocks of chemistry: alkyl carboxylic acids. The same activating principles used in amide-bond synthesis can thus be employed, under Ni- or Fe-based catalysis, to extract CO2 from a carboxylic acid and economically replace it with an organozinc-derived olefin on mole scale. Over sixty olefins across a range of substrate classes are prepared, and the ability to simplify retrosynthetic analysis is exemplified with the preparation of sixteen different natural products across a range of ten different families.
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Affiliation(s)
- Jacob T Edwards
- Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, USA
| | - Rohan R Merchant
- Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, USA
| | - Kyle S McClymont
- Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, USA
| | - Kyle W Knouse
- Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, USA
| | - Tian Qin
- Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, USA
| | - Lara R Malins
- Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, USA
| | - Benjamin Vokits
- Discovery Chemistry, Bristol-Myers Squibb, 350 Carter Road, Hopewell, New Jersey 08540, USA
| | - Scott A Shaw
- Discovery Chemistry, Bristol-Myers Squibb, 350 Carter Road, Hopewell, New Jersey 08540, USA
| | - Deng-Hui Bao
- Asymchem Life Science (Tianjin), Tianjin Economic-technological Development Zone, Tianjin 300457, China
| | - Fu-Liang Wei
- Asymchem Life Science (Tianjin), Tianjin Economic-technological Development Zone, Tianjin 300457, China
| | - Ting Zhou
- Asymchem Life Science (Tianjin), Tianjin Economic-technological Development Zone, Tianjin 300457, China
| | - Martin D Eastgate
- Chemical Development, Bristol-Myers Squibb, One Squibb Drive, New Brunswick, New Jersey 08903, USA
| | - Phil S Baran
- Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, USA
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24
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Mikus MS, Torker S, Xu C, Li B, Hoveyda AH. Pentacoordinate Ruthenium(II) Catecholthiolate and Mercaptophenolate Catalysts for Olefin Metathesis: Anionic Ligand Exchange and Ease of Initiation. Organometallics 2016. [DOI: 10.1021/acs.organomet.6b00773] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Malte S. Mikus
- Department of Chemistry,
Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467, United States
| | - Sebastian Torker
- Department of Chemistry,
Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467, United States
| | - Chaofan Xu
- Department of Chemistry,
Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467, United States
| | - Bo Li
- Department of Chemistry,
Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467, United States
| | - Amir H. Hoveyda
- Department of Chemistry,
Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467, United States
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