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Lin X, Li Y, Xu Z, Yu S, Feng J, Diao A, Yao P, Wu Q, Zhu D. Engineered Imine Reductase for Asymmetric Synthesis of Dextromethorphan Key Intermediate. Org Lett 2024; 26:4463-4468. [PMID: 38747552 DOI: 10.1021/acs.orglett.4c01079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2024]
Abstract
(S)-1-(4-Methoxybenzyl)-1,2,3,4,5,6,7,8-octahydroisoquinoline ((S)-1-(4-methoxybenzyl)-OHIQ) is the key intermediate of the nonopioid antitussive dextromethorphan. In this study, (S)-IR61-V69Y/P123A/W179G/F182I/L212V (M4) was identified with a 766-fold improvement in catalytic efficiency compared with wide-type IR61 through enzyme engineering. M4 could completely convert 200 mM of 1-(4-methoxybenzyl)-3,4,5,6,7,8-hexahydroisoquinoline into (S)-1-(4-methoxybenzyl)-OHIQ in 77% isolated yield, with >99% enantiomeric excess and a high space-time yield of 542 g L-1 day-1, demonstrating a great potential for the synthesis of dextromethorphan intermediate in industrial applications.
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Affiliation(s)
- Xiaofeng Lin
- School of Biotechnology, Key Lab of Industrial Fermentation Microbiology of the Ministry of Education, State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science and Technology, Tianjin 300457, China
- Key Laboratory of Engineering Biology for Low-carbon Manufacturing, National Engineering Research Center of Industrial Enzymes, National Center of Technology Innovation for Synthetic Biology, Tianjin Engineering Research Center of Biocatalytic Technology, and Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin 300308, China
| | - Yixuan Li
- Key Laboratory of Engineering Biology for Low-carbon Manufacturing, National Engineering Research Center of Industrial Enzymes, National Center of Technology Innovation for Synthetic Biology, Tianjin Engineering Research Center of Biocatalytic Technology, and Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin 300308, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zefei Xu
- Key Laboratory of Engineering Biology for Low-carbon Manufacturing, National Engineering Research Center of Industrial Enzymes, National Center of Technology Innovation for Synthetic Biology, Tianjin Engineering Research Center of Biocatalytic Technology, and Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin 300308, China
| | - Shanshan Yu
- Key Laboratory of Engineering Biology for Low-carbon Manufacturing, National Engineering Research Center of Industrial Enzymes, National Center of Technology Innovation for Synthetic Biology, Tianjin Engineering Research Center of Biocatalytic Technology, and Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin 300308, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jinhui Feng
- Key Laboratory of Engineering Biology for Low-carbon Manufacturing, National Engineering Research Center of Industrial Enzymes, National Center of Technology Innovation for Synthetic Biology, Tianjin Engineering Research Center of Biocatalytic Technology, and Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin 300308, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Aipo Diao
- School of Biotechnology, Key Lab of Industrial Fermentation Microbiology of the Ministry of Education, State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science and Technology, Tianjin 300457, China
| | - Peiyuan Yao
- Key Laboratory of Engineering Biology for Low-carbon Manufacturing, National Engineering Research Center of Industrial Enzymes, National Center of Technology Innovation for Synthetic Biology, Tianjin Engineering Research Center of Biocatalytic Technology, and Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin 300308, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Qiaqing Wu
- Key Laboratory of Engineering Biology for Low-carbon Manufacturing, National Engineering Research Center of Industrial Enzymes, National Center of Technology Innovation for Synthetic Biology, Tianjin Engineering Research Center of Biocatalytic Technology, and Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin 300308, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Dunming Zhu
- Key Laboratory of Engineering Biology for Low-carbon Manufacturing, National Engineering Research Center of Industrial Enzymes, National Center of Technology Innovation for Synthetic Biology, Tianjin Engineering Research Center of Biocatalytic Technology, and Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin 300308, China
- University of Chinese Academy of Sciences, Beijing 100049, China
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Konwar D, Boruah M, Sarmah GK, Bhattacharyya NK, Borthakur N, Goswami BN, Boruah KR. Aluminium Chloride and Sodium Iodide (AlCl3-NaI): A Versatile Dehydrating Agent. JOURNAL OF CHEMICAL RESEARCH 2019. [DOI: 10.3184/030823401103168604] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
AlCl3-Nal is an efficient reagent for dehydration of oximes, amides and the Beckmann rearrangement of ketoximes to anilides; it forms isoquinoline derivatives 8(a–c) by cyclodehydrating amides 7(a–c) in very good yields at room temperature.
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Affiliation(s)
- Dilip Konwar
- Synthetic Organic Chemistry Division Regional Research Laboratory, Jorhat-785006, Assam, India
| | - Monalisa Boruah
- Synthetic Organic Chemistry Division Regional Research Laboratory, Jorhat-785006, Assam, India
| | - Gautom Kumar Sarmah
- Synthetic Organic Chemistry Division Regional Research Laboratory, Jorhat-785006, Assam, India
| | | | - Naleen Borthakur
- Synthetic Organic Chemistry Division Regional Research Laboratory, Jorhat-785006, Assam, India
| | - Birendra Nath Goswami
- Synthetic Organic Chemistry Division Regional Research Laboratory, Jorhat-785006, Assam, India
| | - Kumar Ranjan Boruah
- Synthetic Organic Chemistry Division Regional Research Laboratory, Jorhat-785006, Assam, India
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Yao P, Xu Z, Yu S, Wu Q, Zhu D. Imine Reductase‐Catalyzed Enantioselective Reduction of Bulky α,β‐Unsaturated Imines en Route to a Pharmaceutically Important Morphinan Skeleton. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201801326] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Peiyuan Yao
- University of Chinese Academy of Sciences 19(A) Yuquan Road, Shijingshan District Beijing 100049 People's Republic of China
- National Engineering Laboratory for Industrial Enzymes, Tianjin Engineering Research Center of Biocatalytic Technology, Tianjin Institute of Industrial BiotechnologyChinese Academy of Sciences 32 Xi Qi Dao, Tianjin Airport Economic Area Tianjin 300308 People's Republic of China
- Guangdong Provincial Key Laboratory of Fermentation and Enzyme EngineeringSouth China University of Technology Guangzhou 510006 People's Republic of China
| | - Zefei Xu
- University of Chinese Academy of Sciences 19(A) Yuquan Road, Shijingshan District Beijing 100049 People's Republic of China
- National Engineering Laboratory for Industrial Enzymes, Tianjin Engineering Research Center of Biocatalytic Technology, Tianjin Institute of Industrial BiotechnologyChinese Academy of Sciences 32 Xi Qi Dao, Tianjin Airport Economic Area Tianjin 300308 People's Republic of China
| | - Shanshan Yu
- National Engineering Laboratory for Industrial Enzymes, Tianjin Engineering Research Center of Biocatalytic Technology, Tianjin Institute of Industrial BiotechnologyChinese Academy of Sciences 32 Xi Qi Dao, Tianjin Airport Economic Area Tianjin 300308 People's Republic of China
| | - Qiaqing Wu
- University of Chinese Academy of Sciences 19(A) Yuquan Road, Shijingshan District Beijing 100049 People's Republic of China
- National Engineering Laboratory for Industrial Enzymes, Tianjin Engineering Research Center of Biocatalytic Technology, Tianjin Institute of Industrial BiotechnologyChinese Academy of Sciences 32 Xi Qi Dao, Tianjin Airport Economic Area Tianjin 300308 People's Republic of China
| | - Dunming Zhu
- University of Chinese Academy of Sciences 19(A) Yuquan Road, Shijingshan District Beijing 100049 People's Republic of China
- National Engineering Laboratory for Industrial Enzymes, Tianjin Engineering Research Center of Biocatalytic Technology, Tianjin Institute of Industrial BiotechnologyChinese Academy of Sciences 32 Xi Qi Dao, Tianjin Airport Economic Area Tianjin 300308 People's Republic of China
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On the formation of a side product with hexahydroaporphine-like structure in the Grewe cyclization of dextromethorphan. RESEARCH ON CHEMICAL INTERMEDIATES 2017. [DOI: 10.1007/s11164-016-2723-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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5
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Moberg V, Duquesne R, Contaldi S, Röhrs O, Nachtigall J, Damoense L, Hutton AT, Green M, Monari M, Santelia D, Haukka M, Nordlander E. Efficient cluster-based catalysts for asymmetric hydrogenation of α-unsaturated carboxylic acids. Chemistry 2012; 18:12458-78. [PMID: 22890820 DOI: 10.1002/chem.201200630] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2012] [Indexed: 11/10/2022]
Abstract
The new clusters [H(4)Ru(4)(CO)(10)(μ-1,2-P-P)], [H(4)Ru(4)(CO)(10) (1,1-P-P)] and [H(4)Ru(4)(CO)(11)(P-P)] (P-P=chiral diphosphine of the ferrocene-based Josiphos or Walphos ligand families) have been synthesised and characterised. The crystal and molecular structures of eleven clusters reveal that the coordination modes of the diphosphine in the [H(4)Ru(4)(CO)(10)(μ-1,2-P-P)] clusters are different for the Josiphos and the Walphos ligands. The Josiphos ligands bridge a metal-metal bond of the ruthenium tetrahedron in the "conventional" manner, that is, with both phosphine moieties coordinated in equatorial positions relative to a triangular face of the tetrahedron, whereas the phosphine moieties of the Walphos ligands coordinate in one axial and one equatorial position. The differences in the ligand size and the coordination mode between the two types of ligands appear to be reflected in a relative propensity for isomerisation; in solution, the [H(4)Ru(4)(CO)(10)(1,1-Walphos)] clusters isomerise to the corresponding [H(4)Ru(4)(CO)(10)(μ-1,2-Walphos)] clusters, whereas the Josiphos-containing clusters show no tendency to isomerisation in solution. The clusters have been tested as catalysts for asymmetric hydrogenation of four prochiral α-unsaturated carboxylic acids and the prochiral methyl ester (E)-methyl 2-methylbut-2-enoate. High conversion rates (>94%) and selectivities of product formation were observed for almost all catalysts/catalyst precursors. The observed enantioselectivities were low or nonexistent for the Josiphos-containing clusters and catalyst (cluster) recovery was low, suggesting that cluster fragmentation takes place. On the other hand, excellent conversion rates (99-100%), product selectivities (99-100% in most cases) and good enantioselectivities, reaching 90% enantiomeric excess (ee) in certain cases, were observed for the Walphos-containing clusters, and the clusters could be recovered in good yield after completed catalysis. Results from high-pressure NMR and IR studies, catalyst poisoning tests and comparison of catalytic properties of two [H(4)Ru(4)(CO)(10)(μ-1,2-P-P)] clusters (P-P=Walphos ligands) with the analogous mononuclear catalysts [Ru(P-P)(carboxylato)(2)] suggest that these clusters may be the active catalytic species, or direct precursors of an active catalytic cluster species.
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Affiliation(s)
- Viktor Moberg
- Inorganic Chemistry Research Group, Chemical Physics, Center for Chemistry and Chemical Engineering, Lund University, Box 124, 221 00 Lund, Sweden
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Phillips AD, Thommes K, Scopelliti R, Gandolfi C, Albrecht M, Severin K, Schreiber DF, Dyson PJ. Modulating the Steric, Electronic, and Catalytic Properties of Cp* Ruthenium Half-Sandwich Complexes with β-Diketiminato Ligands. Organometallics 2011. [DOI: 10.1021/om2006479] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Andrew D. Phillips
- Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
- School
of Chemistry and Chemical Biology, University College Dublin, Belfield, Dublin 4, Ireland
| | - Katrin Thommes
- Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - Rosario Scopelliti
- Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - Claudio Gandolfi
- Department of Chemistry, University of Fribourg, Chemin du Musée 9, CH-1700 Fribourg,
Switzerland
| | - Martin Albrecht
- School
of Chemistry and Chemical Biology, University College Dublin, Belfield, Dublin 4, Ireland
- Department of Chemistry, University of Fribourg, Chemin du Musée 9, CH-1700 Fribourg,
Switzerland
| | - Kay Severin
- Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - Dominique F. Schreiber
- School
of Chemistry and Chemical Biology, University College Dublin, Belfield, Dublin 4, Ireland
| | - Paul J. Dyson
- Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
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Gopalaiah K, Kagan HB. Use of Nonfunctionalized Enamides and Enecarbamates in Asymmetric Synthesis. Chem Rev 2011; 111:4599-657. [DOI: 10.1021/cr100031f] [Citation(s) in RCA: 283] [Impact Index Per Article: 21.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Kovuru Gopalaiah
- Department of Chemistry, University of Delhi, Delhi 110007, India
- Institut de Chimie Moléculaire et des Matériaux d'Orsay (UMR 8182, CNRS), Laboratoire de Catalyse Moléculaire, Université Paris-Sud, 91405 Orsay, France
| | - Henri B. Kagan
- Institut de Chimie Moléculaire et des Matériaux d'Orsay (UMR 8182, CNRS), Laboratoire de Catalyse Moléculaire, Université Paris-Sud, 91405 Orsay, France
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Kumobayashi H. Industrial application of asymmetric reactions catalyzed by BINAP-metal complexes. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/recl.19961150403] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Abstract
As molecular recognition continues to gain importance in the biological and physical sciences as well as in the technologies of molecular electronics and optics, so has the need for efficient syntheses of chiral molecules. Chemists are fulfilling this need through use of chiral organometallic molecules. These chiral metal complexes precisely discriminate between enantiotopic atoms, groups, or faces in achiral molecules and catalyze production of a broad array of natural or unnatural substances of excellent enantiomeric purity. Because of their ability to efficiently multiply chirality, even on an industrial level, these catalysts promise to exert a general impact on molecular science and engineering.
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Pautigny C, Debouit C, Vayron P, Ayad T, Ratovelomanana-Vidal V. Asymmetric hydrogenation of trisubstituted N-acetyl enamides derived from 2-tetralones using ruthenium-SYNPHOS catalysts: a practical synthetic approach to the preparation of β3-adrenergic agonist SR58611A. ACTA ACUST UNITED AC 2010. [DOI: 10.1016/j.tetasy.2010.03.024] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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11
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12
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Yan PC, Xie JH, Hou GH, Wang LX, Zhou QL. Enantioselective Synthesis of Chiral Tetrahydroisoquinolines by Iridium-Catalyzed Asymmetric Hydrogenation of Enamines. Adv Synth Catal 2009. [DOI: 10.1002/adsc.200900602] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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13
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Fujii H, Watanabe Y, Osa Y, Nemoto T, Sato N, Nagase H. Novel rearrangement reaction of a 6,14-endoethanomorphinan derivative to a benzomorphan derivative. Tetrahedron 2009. [DOI: 10.1016/j.tet.2009.04.055] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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14
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Enthaler S, Erre G, Junge K, Addis D, Kadyrov R, Beller M. Synthesis of Enantiomerically Pure 1,2,3,4‐Tetrahydro‐β‐carbolines andN‐Acyl‐1‐aryl Ethylamines by Rhodium‐Catalyzed Hydrogenation. Chem Asian J 2008; 3:1104-10. [DOI: 10.1002/asia.200800111] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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15
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Mechanism of catalytic asymmetric hydrogenation of 2-formyl-1-methylene-1,2,3,4-tetrahydroisoquinoline using Ru(CH3COO)2[(S)-binap]. Tetrahedron 2006. [DOI: 10.1016/j.tet.2006.03.055] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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17
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Panella L, Aleixandre AM, Kruidhof GJ, Robertus J, Feringa BL, de Vries JG, Minnaard AJ. Enantioselective Rh-Catalyzed Hydrogenation ofN-Formyl Dehydroamino Esters with Monodentate Phosphoramidite Ligands. J Org Chem 2006; 71:2026-36. [PMID: 16496990 DOI: 10.1021/jo052451d] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Enantioselectivities up to >99% ee were achieved in the rhodium-catalyzed asymmetric hydrogenation of N-formyl dehydroamino esters using monodentate phosphoramidites as chiral ligands. The substrates were synthesized by condensation of methyl isocyanoacetate with a range of aldehydes and with cyclohexanone. A highly convenient multigram scale one step synthesis of methyl 2-(formamido)acrylate was developed. This compound was used in the synthesis of methyl 2-(formamido)cinnamate via a solvent free Heck reaction. Moreover, full conversion and >99% ee were obtained in 1 h in the hydrogenation of methyl 2-(formamido)acrylate with 0.2 mol % catalyst and 2 bar hydrogen pressure. The versatility of the formyl protection was established by its removal under mild conditions.
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Affiliation(s)
- Lavinia Panella
- Department of Organic and Molecular Inorganic Chemistry, Stratingh Institute, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
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19
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Berthod M, Mignani G, Woodward G, Lemaire M. Modified BINAP: The How and the Why. Chem Rev 2005; 105:1801-36. [PMID: 15884790 DOI: 10.1021/cr040652w] [Citation(s) in RCA: 381] [Impact Index Per Article: 20.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Mikaël Berthod
- Laboratoire de Catalyse et Synthèse Organique, UCBL-CPE, 43 Boulevard du 11 Novembre 1918, 69622 Villeurbanne Cedex, France
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Tang W, Zhang X. New chiral phosphorus ligands for enantioselective hydrogenation. Chem Rev 2003; 103:3029-70. [PMID: 12914491 DOI: 10.1021/cr020049i] [Citation(s) in RCA: 1934] [Impact Index Per Article: 92.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Wenjun Tang
- Department of Chemistry, 152 Davey Laboratory, The Pennsylvania State University, University Park, PA 16802, USA
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Takaya H, Kojima S, Murahashi S. Rhodium complex-catalyzed reaction of isonitriles with carbonyl compounds: catalytic synthesis of pyrroles. Org Lett 2001; 3:421-4. [PMID: 11428029 DOI: 10.1021/ol0069296] [Citation(s) in RCA: 86] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
[figure: see text] Low-valent rhodium complexes are efficient catalysts for the activation of alpha-C-H bond of isonitriles. Addition of isonitriles to carbonyl compounds proceeds under mild and neutral conditions to give the corresponding alpha,beta-unsaturated formamides. Catalytic synthesis of pyrroles can be performed by cyclocondensation of isonitriles with 1,3-dicarbonyl compounds.
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Affiliation(s)
- H Takaya
- Department of Chemistry, Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama, Toyonaka, Osaka 560-8531, Japan
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Dupau P, Bruneau C, Dixneuf PH. New route to optically active amine derivatives: ruthenium-catalyzed enantioselective hydrogenation of ene carbamates. ACTA ACUST UNITED AC 1999. [DOI: 10.1016/s0957-4166(99)00375-4] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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A highly effective rhodium spirocyclic phosphinite catalyst for the asymmetric hydrogenation of enamides. Tetrahedron Lett 1999. [DOI: 10.1016/s0040-4039(98)02576-3] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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26
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Gendre PL, Thominot P, Bruneau C, Dixneuf PH. A New Preparation of Optically Active N-Acyloxazolidinones via Ruthenium-Catalyzed Enantioselective Hydrogenation. J Org Chem 1998. [DOI: 10.1021/jo971733d] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Pierre Le Gendre
- Lab de Chim de Coord et Catalyse, UMR 6509, Campus de Beaulieu, Universite de Rennes I, 35042 Rennes Cedex, France
| | - Patrice Thominot
- Lab de Chim de Coord et Catalyse, UMR 6509, Campus de Beaulieu, Universite de Rennes I, 35042 Rennes Cedex, France
| | - Christian Bruneau
- Lab de Chim de Coord et Catalyse, UMR 6509, Campus de Beaulieu, Universite de Rennes I, 35042 Rennes Cedex, France
| | - Pierre H. Dixneuf
- Lab de Chim de Coord et Catalyse, UMR 6509, Campus de Beaulieu, Universite de Rennes I, 35042 Rennes Cedex, France
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Kitamura M, Tsukamoto M, Takaya H, Noyori R. Conformational Study on 2-Acyl-1-alkylidene-1,2,3,4-tetrahydroisoquinolines. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 1996. [DOI: 10.1246/bcsj.69.1695] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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28
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Sdassi H, Knouzi N, Peau M, Revial G, d'Angelo J. Enantioselective Synthesis of (R)-(+)-4a-Cyanomethyl-6-Methoxy-3,4,9,10-Tetrahydrophenanthren-2-One. SYNTHETIC COMMUN 1995. [DOI: 10.1080/00397919508011801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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29
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Fadel A, Arzel P. Asymmetric construction of benzylic quaternary carbons from chiral malonates: Formal synthesis of natural (−)aphanorphine. ACTA ACUST UNITED AC 1995. [DOI: 10.1016/0957-4166(95)00097-9] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Hudlicky T, Butora G, Fearnley SP, Gum AG, Stabile MR. A Historical Perspective of Morphine Syntheses. STEREOSELECTIVE SYNTHESIS (PART K) 1995. [DOI: 10.1016/s1572-5995(96)80025-1] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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34
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Mashima K, Hino T, Takaya H. Synthesis and characterization of mono- and tri-nuclear ruthenium complexes of 2,2′-bis(diphenylphosphino)-1,1′-binaphthyl and their catalytic activity. ACTA ACUST UNITED AC 1992. [DOI: 10.1039/dt9920002099] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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35
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Chiral formamidines. The mechanism of mono- and di-alkylation leading to chiral, non-racemic tetrahydroisoquinolines. Tetrahedron Lett 1991. [DOI: 10.1016/0040-4039(91)80070-m] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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36
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Heiser B, Broger EA, Crameri Y. New efficient methods for the synthesis and in-situ preparation of ruthenium(II) complexes of atropisomeric diphosphines and their application in asymmetric catalytic hydrogenations. ACTA ACUST UNITED AC 1991. [DOI: 10.1016/s0957-4166(00)82157-6] [Citation(s) in RCA: 141] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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