1
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Chen T, Hu Y, Tang X, Zou Y, Wei L, Zhang Z, Zhang W. Cobalt-Catalyzed Enantioselective Reductive Amination of Ketones with Hydrazides. Org Lett 2024; 26:769-774. [PMID: 38047613 DOI: 10.1021/acs.orglett.3c03529] [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: 12/05/2023]
Abstract
An efficient cobalt-catalyzed asymmetric reductive amination of ketones with hydrazides has been realized, directly producing valuable chiral hydrazines in high yields and enantioselectivities (up to 98% enantiomeric excess).
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Affiliation(s)
- Tiantian Chen
- Key Laboratory for Thin Film and Microfabrication Technology of the Ministry of Education, School of Electronics, Information and Electrical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, People's Republic of China
- Frontier Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, People's Republic of China
| | - Yanhua Hu
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, People's Republic of China
| | - Xuyang Tang
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, People's Republic of China
| | - Yashi Zou
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, People's Republic of China
| | - Liangming Wei
- Key Laboratory for Thin Film and Microfabrication Technology of the Ministry of Education, School of Electronics, Information and Electrical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, People's Republic of China
| | - Zhenfeng Zhang
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, People's Republic of China
| | - Wanbin Zhang
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, People's Republic of China
- Frontier Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, People's Republic of China
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2
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Xie R, Liu C, Lin R, Zhang R, Huang H, Chang M. 1,2-Diamines as the Amine Sources in Amidation and Rhodium-Catalyzed Asymmetric Reductive Amination Cascade Reactions. Org Lett 2022; 24:5646-5650. [PMID: 35916628 DOI: 10.1021/acs.orglett.2c01728] [Citation(s) in RCA: 4] [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: 12/31/2022]
Abstract
The sturdy chelation of 1,2-diamines and transition-metals would retard or even interrupt the routine catalytic cycles. In the amidation and asymmetric reductive amination (ARA) cascade reactions of diamines and ketoesters, we deployed sets of additives to ensure a smooth transformation catalyzed by the complexes of rhodium and versatile and highly modular phosphoramidite-phosphine ligands. The tunability of the ligands was fully exploited to accommodate various diamines and α-ketoesters for the efficient synthesis of chiral 3,4-dihydroquinoxalinones.
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Affiliation(s)
- Rongrong Xie
- College of Chemistry & Pharmacy, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Cungang Liu
- College of Chemistry & Pharmacy, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Renwei Lin
- College of Chemistry & Pharmacy, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Runchen Zhang
- College of Chemistry & Pharmacy, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Haizhou Huang
- College of Chemistry & Pharmacy, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Mingxin Chang
- College of Chemistry & Pharmacy, Northwest A&F University, Yangling, Shaanxi 712100, China.,College of Plant Protection, Shaanxi Research Center of Biopesticide Engineering & Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
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3
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Jouffroy M, Nguyen T, Cordier M, Blot M, Roisnel T, Gramage‐Doria R. Iridium‐Catalyzed Direct Reductive Amination of Ketones and Secondary Amines: Breaking the Aliphatic Wall. Chemistry 2022; 28:e202201078. [DOI: 10.1002/chem.202201078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Indexed: 11/12/2022]
Affiliation(s)
- Matthieu Jouffroy
- Chemical Process R&D Discovery Process Research Janssen Pharmaceutica N.V. Turnhoutseweg 30 2340 Beerse Belgium
| | - Thi‐Mo Nguyen
- Université de Rennes CNRS, ISCR-UMR6226 Rennes 35000 France
| | - Marie Cordier
- Université de Rennes CNRS, ISCR-UMR6226 Rennes 35000 France
| | - Marielle Blot
- Université de Rennes CNRS, ISCR-UMR6226 Rennes 35000 France
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4
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Wu Z, Wang W, Guo H, Gao G, Huang H, Chang M. Iridium-catalyzed direct asymmetric reductive amination utilizing primary alkyl amines as the N-sources. Nat Commun 2022; 13:3344. [PMID: 35688909 PMCID: PMC9187633 DOI: 10.1038/s41467-022-31045-5] [Citation(s) in RCA: 8] [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: 02/09/2022] [Accepted: 05/30/2022] [Indexed: 11/10/2022] Open
Abstract
Direct asymmetric reductive amination is one of the most efficient methods for the construction of chiral amines, in which the scope of the applicable amine coupling partners remains a significant challenge. In this study we describe primary alkyl amines effectively serve as the N-sources in direct asymmetric reductive amination catalyzed by the iridium precursor and sterically tunable chiral phosphoramidite ligands. The density functional theory studies of the reaction mechanism imply the alkyl amine substrates serve as a ligand of iridium strengthened by a (N)H-O(P) hydrogen-bonding attraction, and the hydride addition occurs via an outer-sphere transition state, in which the Cl-H H-bonding plays an important role. Through this concise procedure, cinacalcet, tecalcet, fendiline and many other related chiral amines have been synthesized in one single step with high yields and excellent enantioselectivity. Direct asymmetric reductive amination is one of the most efficient methods for obtaining chiral amines. Here the authors show how primary alkyl amines can undergo this transformation in the presence of an iridium catalyst with sterically tuneable chiral phosphoramidite ligands, achieving the synthesis of pharmaceutical compounds.
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Affiliation(s)
- Zitong Wu
- College of Chemistry & Pharmacy, Northwest A&F University, Yangling, Shaanxi, 712100, China.,College of Plant Protection, Shaanxi Research Center of Biopesticide Engineering & Technology, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Wenji Wang
- College of Chemistry & Pharmacy, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Haodong Guo
- College of Chemistry & Pharmacy, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Guorui Gao
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Shandong Normal University, 88 Wenhuadong Road, Jinan, 250014, China
| | - Haizhou Huang
- College of Chemistry & Pharmacy, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Mingxin Chang
- College of Chemistry & Pharmacy, Northwest A&F University, Yangling, Shaanxi, 712100, China. .,College of Plant Protection, Shaanxi Research Center of Biopesticide Engineering & Technology, Northwest A&F University, Yangling, Shaanxi, 712100, China.
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5
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Gilio AK, Thorpe TW, Turner N, Grogan G. Reductive aminations by imine reductases: from milligrams to tons. Chem Sci 2022; 13:4697-4713. [PMID: 35655886 PMCID: PMC9067572 DOI: 10.1039/d2sc00124a] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [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: 01/07/2022] [Accepted: 04/06/2022] [Indexed: 12/22/2022] Open
Abstract
The synthesis of secondary and tertiary amines through the reductive amination of carbonyl compounds is one of the most significant reactions in synthetic chemistry. Asymmetric reductive amination for the formation of chiral amines, which are required for the synthesis of pharmaceuticals and other bioactive molecules, is often achieved through transition metal catalysis, but biocatalytic methods of chiral amine production have also been a focus of interest owing to their selectivity and sustainability. The discovery of asymmetric reductive amination by imine reductase (IRED) and reductive aminase (RedAm) enzymes has served as the starting point for a new industrial approach to the production of chiral amines, leading from laboratory-scale milligram transformations to ton-scale reactions that are now described in the public domain. In this perspective we trace the development of the IRED-catalyzed reductive amination reaction from its discovery to its industrial application on kg to ton scale. In addition to surveying examples of the synthetic chemistry that has been achieved with the enzymes, the contribution of structure and protein engineering to the understanding of IRED-catalyzed reductive amination is described, and the consequent benefits for activity, selectivity and stability in the design of process suitable catalysts. IRED-catalyzed reductive aminations have progressed from mg to ton scale, through advances in enzyme discovery, protein engineering and process biocatalysis.![]()
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Affiliation(s)
- Amelia K. Gilio
- Department of Chemistry, University of York, Heslington, York YO10 5DD, UK
| | - Thomas W. Thorpe
- School of Chemistry, University of Manchester, Manchester Institute of Biotechnology, 131 Princess Street, Manchester, M1 7DN, UK
| | - Nicholas Turner
- School of Chemistry, University of Manchester, Manchester Institute of Biotechnology, 131 Princess Street, Manchester, M1 7DN, UK
| | - Gideon Grogan
- Department of Chemistry, University of York, Heslington, York YO10 5DD, UK
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6
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Gao Z, Liu J, Huang H, Geng H, Chang M. An Iridium Catalytic System Compatible with Inorganic and Organic Nitrogen Sources for Dual Asymmetric Reductive Amination Reactions. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202112671] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Zhaofeng Gao
- Department of Chemistry Shaanxi Key Laboratory of Natural Products & Chemical Biology Northwest A&F University 22 Xinong Road Yangling Shaanxi 712100 P. R. China
| | - Jingwen Liu
- Department of Chemistry Shaanxi Key Laboratory of Natural Products & Chemical Biology Northwest A&F University 22 Xinong Road Yangling Shaanxi 712100 P. R. China
| | - Haizhou Huang
- Department of Chemistry Shaanxi Key Laboratory of Natural Products & Chemical Biology Northwest A&F University 22 Xinong Road Yangling Shaanxi 712100 P. R. China
| | - Huiling Geng
- Department of Chemistry Shaanxi Key Laboratory of Natural Products & Chemical Biology Northwest A&F University 22 Xinong Road Yangling Shaanxi 712100 P. R. China
| | - Mingxin Chang
- Department of Chemistry Shaanxi Key Laboratory of Natural Products & Chemical Biology Northwest A&F University 22 Xinong Road Yangling Shaanxi 712100 P. R. China
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7
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Affiliation(s)
- Noor U Din Reshi
- Department of Chemistry and Center for Environmental Science, Indian Institute of Technology Kanpur, Kanpur, 208016, India
| | - Vitthal B. Saptal
- Department of Chemistry and Center for Environmental Science, Indian Institute of Technology Kanpur, Kanpur, 208016, India
| | - Matthias Beller
- Leibniz-Institut fr Katalyse e.V., Albert-Einstein-Straße 29a, 18059 Rostock, Germany
| | - Jitendra K. Bera
- Department of Chemistry and Center for Environmental Science, Indian Institute of Technology Kanpur, Kanpur, 208016, India
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8
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Gao Z, Liu J, Huang H, Geng H, Chang M. An Iridium Catalytic System Compatible with Inorganic and Organic Nitrogen Sources for Dual Asymmetric Reductive Amination Reactions. Angew Chem Int Ed Engl 2021; 60:27307-27311. [PMID: 34699113 DOI: 10.1002/anie.202112671] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [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: 09/17/2021] [Revised: 10/16/2021] [Indexed: 12/14/2022]
Abstract
Asymmetric reductive amination (ARA) is one of the most promising methods for the synthesis of chiral amines. Herein we report our efforts on merging two ARA reactions into a single-step transformation. Catalyzed by a complex formed from iridium and a steric hindered phosphoramidite, readily available and inexpensive aromatic ketones initially undergo the first ARA with ammonium acetate to afford primary amines, which serve as the amine sources for the second ARA, and finally provide the enantiopure C2 -symmetric secondary amine products. The developed process competently enables the successive coupling of inorganic and organic nitrogen sources with ketones in the same reaction system. The Brønsted acid additive plays multiple roles in this procedure: it accelerates the formation of imine intermediates, minimizes the inhibitory effect of N-containing species on the iridium catalyst, and reduces the primary amine side products.
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Affiliation(s)
- Zhaofeng Gao
- Department of Chemistry, Shaanxi Key Laboratory of Natural Products & Chemical Biology, Northwest A&F University, 22 Xinong Road, Yangling, Shaanxi, 712100, P. R. China
| | - Jingwen Liu
- Department of Chemistry, Shaanxi Key Laboratory of Natural Products & Chemical Biology, Northwest A&F University, 22 Xinong Road, Yangling, Shaanxi, 712100, P. R. China
| | - Haizhou Huang
- Department of Chemistry, Shaanxi Key Laboratory of Natural Products & Chemical Biology, Northwest A&F University, 22 Xinong Road, Yangling, Shaanxi, 712100, P. R. China
| | - Huiling Geng
- Department of Chemistry, Shaanxi Key Laboratory of Natural Products & Chemical Biology, Northwest A&F University, 22 Xinong Road, Yangling, Shaanxi, 712100, P. R. China
| | - Mingxin Chang
- Department of Chemistry, Shaanxi Key Laboratory of Natural Products & Chemical Biology, Northwest A&F University, 22 Xinong Road, Yangling, Shaanxi, 712100, P. R. China
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9
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Abstract
A series of chiral cyclometalated iridium complexes have been synthesised by cyclometalating chiral 2-aryl-oxazoline and imidazoline ligands with [Cp*IrCl2]2. These iridacycles were studied for asymmetric transfer hydrogenation reactions with formic acid as the hydrogen source and were found to display various activities and enantioselectivities, with the most effective ones affording up to 63% ee in the asymmetric reductive amination of ketones and 77% ee in the reduction of pyridinium ions.
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Affiliation(s)
- Jennifer Smith
- Department of Chemistry, University of Liverpool, Liverpool, L69 7ZD, UK.
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10
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Brewer AC, Ruble JC, Vandeveer HG, Frank SA, Nevill CR. Development and Scale-Up of a Direct Asymmetric Reductive Amination with Ammonia. Org Process Res Dev 2021. [DOI: 10.1021/acs.oprd.0c00522] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Alison Campbell Brewer
- Synthetic Molecule Design and Development, Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, Indiana 46285, United States
| | - J. Craig Ruble
- Discovery Chemistry Research and Technologies, Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, Indiana 46285, United States
| | | | - Scott A. Frank
- Synthetic Molecule Design and Development, Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, Indiana 46285, United States
| | - C. Richard Nevill
- Discovery Chemistry Research and Technologies, Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, Indiana 46285, United States
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11
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Liu R, Han J, Li B, Liu X, Wei Z, Wang J, Wang Q, Jiang R, Nie H, Zhang S. Enantioselective synthesis of tetrahydroisoquinolines via catalytic intramolecular asymmetric reductive amination. Org Chem Front 2021. [DOI: 10.1039/d0qo01554g] [Citation(s) in RCA: 3] [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: 12/23/2022]
Abstract
A highly efficient intramolecular asymmetric reductive amination transformation catalyzed by an iridium complex of tBu-ax-Josiphos has been realized, providing an efficient access to various THIQ alkaloids.
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Affiliation(s)
- Ruixia Liu
- School of Pharmacy
- Fourth Military Medical University
- Xi'an
- PR China
| | - Jingkuo Han
- School of Pharmacy
- Fourth Military Medical University
- Xi'an
- PR China
| | - Bin Li
- Key Laboratory of Resource Biology and Biotechnology in Western China
- Ministry of Education
- The College of Life Sciences
- Northwest University
- Xi'an 710069
| | - Xian Liu
- Beijing Institute of Radiation Medicine
- Beijing
- PR China
| | - Zhao Wei
- School of Pharmacy
- Fourth Military Medical University
- Xi'an
- PR China
| | - Jiaxin Wang
- School of Pharmacy
- Fourth Military Medical University
- Xi'an
- PR China
| | - Qiaofeng Wang
- School of Pharmacy
- Fourth Military Medical University
- Xi'an
- PR China
- Xi'an Peihua University
| | - Ru Jiang
- School of Pharmacy
- Fourth Military Medical University
- Xi'an
- PR China
| | - Huifang Nie
- School of Pharmacy
- Fourth Military Medical University
- Xi'an
- PR China
| | - Shengyong Zhang
- School of Pharmacy
- Fourth Military Medical University
- Xi'an
- PR China
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12
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Abstract
This review focuses on the recent progress of homogeneous transition-metal-catalysed asymmetric reductive amination of ketones with diverse nitrogen sources.
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Affiliation(s)
- Yingying Tian
- Medi-X Pingshan
- Southern University of Science and Technology
- Shenzhen 518000
- China
| | - Le'an Hu
- Medi-X Pingshan
- Southern University of Science and Technology
- Shenzhen 518000
- China
| | - Yuan-Zheng Wang
- Medi-X Pingshan
- Southern University of Science and Technology
- Shenzhen 518000
- China
| | - Xumu Zhang
- Medi-X Pingshan
- Southern University of Science and Technology
- Shenzhen 518000
- China
- Shenzhen Key Laboratory of Small Molecule Drug Discovery
| | - Qin Yin
- Medi-X Pingshan
- Southern University of Science and Technology
- Shenzhen 518000
- China
- Academy for Advanced Interdisciplinary Studies
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13
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Cosgrove SC, Thompson MP, Ahmed ST, Parmeggiani F, Turner NJ. One-Pot Synthesis of Chiral N-Arylamines by Combining Biocatalytic Aminations with Buchwald-Hartwig N-Arylation. Angew Chem Int Ed Engl 2020; 59:18156-18160. [PMID: 32628797 PMCID: PMC7590080 DOI: 10.1002/anie.202006246] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 07/03/2020] [Indexed: 01/20/2023]
Abstract
The combination of biocatalysis and chemo-catalysis increasingly offers chemists access to more diverse chemical architectures. Here, we describe the combination of a toolbox of chiral-amine-producing biocatalysts with a Buchwald-Hartwig cross-coupling reaction, affording a variety of α-chiral aniline derivatives. The use of a surfactant allowed reactions to be performed sequentially in the same flask, preventing the palladium catalyst from being inhibited by the high concentrations of ammonia, salts, or buffers present in the aqueous media in most cases. The methodology was further extended by combining with a dual-enzyme biocatalytic hydrogen-borrowing cascade in one pot to allow for the conversion of a racemic alcohol to a chiral aniline.
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Affiliation(s)
- Sebastian C. Cosgrove
- Department of ChemistryUniversity of ManchesterManchester Institute of Biotechnology131 Princess StreetManchesterM1 7DNUK
- Future Biomanufacturing Research HubUniversity of ManchesterManchester Institute of Biotechnology131 Princess StreetManchesterM1 7DNUK
| | - Matthew P. Thompson
- Department of ChemistryUniversity of ManchesterManchester Institute of Biotechnology131 Princess StreetManchesterM1 7DNUK
- Current address: EnginZyme ABTomtebodavägen 6, House A1, Floor 417165SolnaSweden
| | - Syed T. Ahmed
- Department of ChemistryUniversity of ManchesterManchester Institute of Biotechnology131 Princess StreetManchesterM1 7DNUK
| | - Fabio Parmeggiani
- Department of ChemistryUniversity of ManchesterManchester Institute of Biotechnology131 Princess StreetManchesterM1 7DNUK
- Department of Chemistry, Materials and Chemical Engineering “G. Natta”Politecnico di MilanoVia Mancinelli 720131MilanoItaly
| | - Nicholas J. Turner
- Department of ChemistryUniversity of ManchesterManchester Institute of Biotechnology131 Princess StreetManchesterM1 7DNUK
- Future Biomanufacturing Research HubUniversity of ManchesterManchester Institute of Biotechnology131 Princess StreetManchesterM1 7DNUK
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14
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Abstract
The reductive amination, the reaction of an aldehyde or a ketone with ammonia or an amine in the presence of a reducing agent and often a catalyst, is an important amine synthesis and has been intensively investigated in academia and industry for a century. Besides aldehydes, ketones, or amines, starting materials have been used that can be converted into an aldehyde or ketone (for instance, carboxylic acids or organic carbonate or nitriles) or into an amine (for instance, a nitro compound) in the presence of the same reducing agent and catalyst. Mechanistically, the reaction starts with a condensation step during which the carbonyl compound reacts with ammonia or an amine, forming the corresponding imine followed by the reduction of the imine to the alkyl amine product. Many of these reduction steps require the presence of a catalyst to activate the reducing agent. The reductive amination is impressive with regard to the product scope since primary, secondary, and tertiary alkyl amines are accessible and hydrogen is the most attractive reducing agent, especially if large-scale product formation is an issue, since hydrogen is inexpensive and abundantly available. Alkyl amines are intensively produced and use fine and bulk chemicals. They are key functional groups in many pharmaceuticals, agro chemicals, or materials. In this review, we summarize the work published on reductive amination employing hydrogen as the reducing agent. No comprehensive review focusing on this subject has been published since 1948, albeit many interesting summaries dealing with one or the other aspect of reductive amination have appeared. Impressive progress in using catalysts based on earth-abundant metals, especially nanostructured heterogeneous catalysts, has been made during the early development of the field and in recent years.
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Affiliation(s)
- Torsten Irrgang
- Inorganic Chemistry II - Catalyst Design, University of Bayreuth, 95440 Bayreuth, Germany
| | - Rhett Kempe
- Inorganic Chemistry II - Catalyst Design, University of Bayreuth, 95440 Bayreuth, Germany
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15
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Zhang Y, Liu YQ, Hu L, Zhang X, Yin Q. Asymmetric Reductive Amination/Ring-Closing Cascade: Direct Synthesis of Enantioenriched Biaryl-Bridged NH Lactams. Org Lett 2020; 22:6479-6483. [PMID: 32806148 DOI: 10.1021/acs.orglett.0c02282] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We report here a Ru-catalyzed enantioselective synthesis of biaryl-bridged NH lactams through asymmetric reductive amination and a spontaneous ring-closing cascade from keto esters and NH4OAc with H2 as reductant. The reaction features broad substrate generality and high enantioselectivities (up to >99% ee). To showcase the practical utility, a highly enantioselective synthesis of 5-ethylindolobenzazepinone C, a promising antimitotic agent, has been rapidly completed. Furthermore, the amide group in the products enables versatile elaborations through directed C-H functionalization.
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Affiliation(s)
- Yao Zhang
- Guangdong Provincial Key Laboratory of Catalysis, Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China.,School of Innovation and Entrepreneurship, Southern University of Science and Technology, Shenzhen 518055, China
| | - Yun-Qi Liu
- Guangdong Provincial Key Laboratory of Catalysis, Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Le'an Hu
- Guangdong Provincial Key Laboratory of Catalysis, Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Xumu Zhang
- Guangdong Provincial Key Laboratory of Catalysis, Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Qin Yin
- Guangdong Provincial Key Laboratory of Catalysis, Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China.,Academy for Advanced Interdisciplinary Studies, Southern University of Science and Technology, Shenzhen 518000, China
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16
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Cosgrove SC, Thompson MP, Ahmed ST, Parmeggiani F, Turner NJ. One‐Pot Synthesis of Chiral N ‐Arylamines by Combining Biocatalytic Aminations with Buchwald–Hartwig N ‐Arylation. Angew Chem Int Ed Engl 2020; 132:18313-7. [DOI: 10.1002/ange.202006246] [Citation(s) in RCA: 3] [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: 01/02/2023]
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17
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Yuan S, Gao G, Wang L, Liu C, Wan L, Huang H, Geng H, Chang M. The combination of asymmetric hydrogenation of olefins and direct reductive amination. Nat Commun 2020; 11:621. [PMID: 32001706 PMCID: PMC6992772 DOI: 10.1038/s41467-020-14475-x] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2019] [Accepted: 01/13/2020] [Indexed: 11/16/2022] Open
Abstract
Asymmetric hydrogenation (AH) and direct reductive amination (DRA) are both efficient transformations frequently utilized in industry. Here we combine the asymmetric hydrogenation of prochiral olefins and direct reductive amination of aldehydes in one step using hydrogen gas as the common reductant and a rhodium-Segphos complex as the catalyst. With this strategy, the efficiency for the synthesis of the corresponding chiral amino compounds is significantly improved. The practical application of this synthetic approach is demonstrated by the facile synthesis of chiral 3-phenyltetrahydroquinoline and 3-benzylindoline compounds.
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Affiliation(s)
- Shuai Yuan
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, 22 Xinong Road, Yangling, 712100, Shaanxi, China
| | - Guorui Gao
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Shandong Normal University, 88 Wenhuadong Road, 250014, Jinan, China
| | - Lili Wang
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, 22 Xinong Road, Yangling, 712100, Shaanxi, China
| | - Cungang Liu
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, 22 Xinong Road, Yangling, 712100, Shaanxi, China
| | - Lei Wan
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, 22 Xinong Road, Yangling, 712100, Shaanxi, China
| | - Haizhou Huang
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, 22 Xinong Road, Yangling, 712100, Shaanxi, China.
| | - Huiling Geng
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, 22 Xinong Road, Yangling, 712100, Shaanxi, China.
| | - Mingxin Chang
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, 22 Xinong Road, Yangling, 712100, Shaanxi, China.
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18
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Liu R, Li B, Han J, Zhang D, Li M, Yao L, Zhao W, Wang Q, Jiang R, Nie H. Iridium-catalyzed enantioselective reductive amination of aromatic ketones. Catal Sci Technol 2020. [DOI: 10.1039/d0cy01271h] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A highly efficient catalytic system of direct asymmetric reductive amination of aromatic ketones.
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Affiliation(s)
- Ruixia Liu
- School of Pharmacy
- Fourth Military Medical University
- Xi'an
- China
| | - Bin Li
- Key Laboratory of Resource Biology and Biotechnology in Western China
- Ministry of Education
- The College of Life Sciences
- Northwest University
- Xi'an 710069
| | - Jingkuo Han
- School of Pharmacy
- Fourth Military Medical University
- Xi'an
- China
| | - Dongxu Zhang
- School of Pharmacy
- Fourth Military Medical University
- Xi'an
- China
| | - Muqiong Li
- School of Pharmacy
- Fourth Military Medical University
- Xi'an
- China
| | - Lin Yao
- School of Pharmacy
- Fourth Military Medical University
- Xi'an
- China
| | - Wei Zhao
- School of Pharmacy
- Fourth Military Medical University
- Xi'an
- China
| | - Qiaofeng Wang
- School of Pharmacy
- Fourth Military Medical University
- Xi'an
- China
| | - Ru Jiang
- School of Pharmacy
- Fourth Military Medical University
- Xi'an
- China
| | - Huifang Nie
- School of Pharmacy
- Fourth Military Medical University
- Xi'an
- China
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19
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Gilbert SH, Viseur V, Clarke ML. A consecutive process for C-C and C-N bond formation with high enantio-and diastereo-control: direct reductive amination of chiral ketones using hydrogenation catalysts. Chem Commun (Camb) 2019; 55:6409-6412. [PMID: 31094372 DOI: 10.1039/c9cc00923j] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
High diastereoselectivity was observed in the Rh-catalysed reductive amination of 3-arylcyclohexanones to form tertiary amines. This was incorporated into a one-pot enantioselective conjugate addition and diastereoselective reductive amination, including an example of assisted tandem catalysis.
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Affiliation(s)
- Sophie H Gilbert
- School of Chemistry, University of St Andrews, EaStCHEM, St Andrews, Fife, UK.
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20
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Wu Z, Du S, Gao G, Yang W, Yang X, Huang H, Chang M. Secondary amines as coupling partners in direct catalytic asymmetric reductive amination. Chem Sci 2019; 10:4509-4514. [PMID: 31057780 PMCID: PMC6482873 DOI: 10.1039/c9sc00323a] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [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: 01/20/2019] [Accepted: 03/12/2019] [Indexed: 01/10/2023] Open
Abstract
The secondary amine participating asymmetric reductive amination remains an unsolved problem in organic synthesis. Here we show for the first time that secondary amines are capable of effectively serving as N-sources in direct asymmetric reductive amination to afford corresponding tertiary chiral amines with the help of a selected additive set under mild conditions (0-25 °C). The applied chiral phosphoramidite ligands are readily prepared from BINOL and easily modified. Compared with common tertiary chiral amine synthetic methods, this procedure is much more concise and scalable, as exemplified by the facile synthesis of rivastigmine and N-methyl-1-phenylethanamine.
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Affiliation(s)
- Zitong Wu
- Shanxi Key Laboratory of Natural Products & Chemical Biology , College of Chemistry & Pharmacy , Northwest A&F University , 22 Xinong Road , Yangling , Shanxi 712100 , China . mxchang@@nwsuaf.edu.cn
| | - Shaozhi Du
- Shanxi Key Laboratory of Natural Products & Chemical Biology , College of Chemistry & Pharmacy , Northwest A&F University , 22 Xinong Road , Yangling , Shanxi 712100 , China . mxchang@@nwsuaf.edu.cn
| | - Guorui Gao
- College of Chemistry , Chemical Engineering and Materials Science , Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong , Shandong Normal University , 88 Wenhuadong Road , Jinan 250014 , China
| | - Wenkun Yang
- Shanxi Key Laboratory of Natural Products & Chemical Biology , College of Chemistry & Pharmacy , Northwest A&F University , 22 Xinong Road , Yangling , Shanxi 712100 , China . mxchang@@nwsuaf.edu.cn
| | - Xiongyu Yang
- Shanxi Key Laboratory of Natural Products & Chemical Biology , College of Chemistry & Pharmacy , Northwest A&F University , 22 Xinong Road , Yangling , Shanxi 712100 , China . mxchang@@nwsuaf.edu.cn
| | - Haizhou Huang
- Shanxi Key Laboratory of Natural Products & Chemical Biology , College of Chemistry & Pharmacy , Northwest A&F University , 22 Xinong Road , Yangling , Shanxi 712100 , China . mxchang@@nwsuaf.edu.cn
| | - Mingxin Chang
- Shanxi Key Laboratory of Natural Products & Chemical Biology , College of Chemistry & Pharmacy , Northwest A&F University , 22 Xinong Road , Yangling , Shanxi 712100 , China . mxchang@@nwsuaf.edu.cn
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21
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Affiliation(s)
- Bei Zhang
- School of Pharmaceutical Sciences; Key Laboratory of Bioorganic Phosphorous Chemistry & Chemical Biology (Ministry of Education); Tsinghua University; Beijing 100084 China
| | - Lala Liu
- School of Pharmaceutical Sciences; Key Laboratory of Bioorganic Phosphorous Chemistry & Chemical Biology (Ministry of Education); Tsinghua University; Beijing 100084 China
| | - Donghui Guo
- School of Pharmaceutical Sciences; Key Laboratory of Bioorganic Phosphorous Chemistry & Chemical Biology (Ministry of Education); Tsinghua University; Beijing 100084 China
| | - Jian Wang
- School of Pharmaceutical Sciences; Key Laboratory of Bioorganic Phosphorous Chemistry & Chemical Biology (Ministry of Education); Tsinghua University; Beijing 100084 China
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22
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Yang T, Guo X, Yin Q, Zhang X. Intramolecular asymmetric reductive amination: synthesis of enantioenriched dibenz[ c, e]azepines. Chem Sci 2018; 10:2473-2477. [PMID: 30881676 PMCID: PMC6385856 DOI: 10.1039/c8sc04482a] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [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: 10/09/2018] [Accepted: 12/21/2018] [Indexed: 01/11/2023] Open
Abstract
An enantioselective synthesis of dibenz[c,e]azepines containing both central and axial chiralities through a one pot N-Boc deprotection/intramolecular asymmetric reductive amination sequence has been achieved with generally excellent enantiocontrol (up to 97% ee).
An Ir-catalyzed intramolecular asymmetric reductive amination (ARA) of bridged biaryl derivatives has been described. Using this unprecedented approach, synthetically useful dibenz[c,e]azepines containing both central and axial chiralities are obtained with excellent enantiocontrol (up to 97% ee). This methodology represents a rare example of enantioselective chemocatalytic synthesis of chiral dibenz[c,e]azepines featuring a broad substrate scope, and their synthetic utilities are exhibited by derivatizing the products into a chiral amino acid derivative and chiral phosphoramidite ligands, which display excellent enantiocontrol in Rh-catalyzed asymmetric hydrogenation of α-dehydroamino acid derivatives. Remarkably, our method is also applicable to enantioselectively synthesize an allocolchicine analogue.
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Affiliation(s)
- Tao Yang
- Shenzhen Grubbs Institute and Department of Chemistry , Southern University of Science and Technology , Shenzhen , Guangdong 518055 , People's Republic of China .
| | - Xiaochong Guo
- Shenzhen Grubbs Institute and Department of Chemistry , Southern University of Science and Technology , Shenzhen , Guangdong 518055 , People's Republic of China .
| | - Qin Yin
- Shenzhen Grubbs Institute and Department of Chemistry , Southern University of Science and Technology , Shenzhen , Guangdong 518055 , People's Republic of China . .,SUSTech Academy for Advanced Interdisciplinary Studies , Southern University of Science and Technology , Shenzhen , Guangdong 518055 , People's Republic of China .
| | - Xumu Zhang
- Shenzhen Grubbs Institute and Department of Chemistry , Southern University of Science and Technology , Shenzhen , Guangdong 518055 , People's Republic of China .
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23
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Lou Y, Hu Y, Lu J, Guan F, Gong G, Yin Q, Zhang X. Dynamic Kinetic Asymmetric Reductive Amination: Synthesis of Chiral Primary β-Amino Lactams. Angew Chem Int Ed Engl 2018; 57:14193-14197. [DOI: 10.1002/anie.201809719] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2018] [Indexed: 12/22/2022]
Affiliation(s)
- Yazhou Lou
- Department of Chemistry and Shenzhen Grubbs Institute; Southern University of Science and Technology; Shenzhen Guangdong 518055 P. R. China
| | - Yutao Hu
- Department of Chemistry and Shenzhen Grubbs Institute; Southern University of Science and Technology; Shenzhen Guangdong 518055 P. R. China
| | - Jiaxiang Lu
- Department of Chemistry and Shenzhen Grubbs Institute; Southern University of Science and Technology; Shenzhen Guangdong 518055 P. R. China
| | - Fanfu Guan
- Department of Chemistry and Shenzhen Grubbs Institute; Southern University of Science and Technology; Shenzhen Guangdong 518055 P. R. China
| | - Gelin Gong
- Department of Chemistry and Shenzhen Grubbs Institute; Southern University of Science and Technology; Shenzhen Guangdong 518055 P. R. China
| | - Qin Yin
- Department of Chemistry and Shenzhen Grubbs Institute; Southern University of Science and Technology; Shenzhen Guangdong 518055 P. R. China
- Academy for Advanced Interdisciplinary Studies; Southern University of Science and Technology; Shenzhen Guangdong 518000 P. R. China
| | - Xumu Zhang
- Department of Chemistry and Shenzhen Grubbs Institute; Southern University of Science and Technology; Shenzhen Guangdong 518055 P. R. China
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24
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Lou Y, Hu Y, Lu J, Guan F, Gong G, Yin Q, Zhang X. Dynamic Kinetic Asymmetric Reductive Amination: Synthesis of Chiral Primary β-Amino Lactams. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201809719] [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: 01/04/2023]
Affiliation(s)
- Yazhou Lou
- Department of Chemistry and Shenzhen Grubbs Institute; Southern University of Science and Technology; Shenzhen Guangdong 518055 P. R. China
| | - Yutao Hu
- Department of Chemistry and Shenzhen Grubbs Institute; Southern University of Science and Technology; Shenzhen Guangdong 518055 P. R. China
| | - Jiaxiang Lu
- Department of Chemistry and Shenzhen Grubbs Institute; Southern University of Science and Technology; Shenzhen Guangdong 518055 P. R. China
| | - Fanfu Guan
- Department of Chemistry and Shenzhen Grubbs Institute; Southern University of Science and Technology; Shenzhen Guangdong 518055 P. R. China
| | - Gelin Gong
- Department of Chemistry and Shenzhen Grubbs Institute; Southern University of Science and Technology; Shenzhen Guangdong 518055 P. R. China
| | - Qin Yin
- Department of Chemistry and Shenzhen Grubbs Institute; Southern University of Science and Technology; Shenzhen Guangdong 518055 P. R. China
- Academy for Advanced Interdisciplinary Studies; Southern University of Science and Technology; Shenzhen Guangdong 518000 P. R. China
| | - Xumu Zhang
- Department of Chemistry and Shenzhen Grubbs Institute; Southern University of Science and Technology; Shenzhen Guangdong 518055 P. R. China
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25
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Schaub T, Hashmi ASK, Paciello RA. Tackling Challenges in Industrially Relevant Homogeneous Catalysis: The Catalysis Research Laboratory (CaRLa), an Industrial–Academic Partnership. J Org Chem 2018; 84:4604-4614. [DOI: 10.1021/acs.joc.8b02362] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [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)
- Thomas Schaub
- BASF SE, Synthesis and Homogeneous Catalysis, Carl-Bosch-Strasse 38, 67056 Ludwigshafen, Germany
- Catalysis Research Laboratory, Im Neuenheimer Feld 584, 69120 Heidelberg, Germany
| | - A. Stephen K. Hashmi
- Catalysis Research Laboratory, Im Neuenheimer Feld 584, 69120 Heidelberg, Germany
- Organisch-Chemisches Institut, Heidelberg University, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Rocco A. Paciello
- BASF SE, Synthesis and Homogeneous Catalysis, Carl-Bosch-Strasse 38, 67056 Ludwigshafen, Germany
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26
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Guo D, Zhang J, Zhang B, Wang J. Ruthenium-Catalyzed Atropoenantioselective Synthesis of Axial Biaryls via Reductive Amination and Dynamic Kinetic Resolution. Org Lett 2018; 20:6284-6288. [DOI: 10.1021/acs.orglett.8b02785] [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: 01/05/2023]
Affiliation(s)
- Donghui Guo
- School of Pharmaceutical Sciences, Key Laboratory of Bioorganic Phosphorous Chemistry & Chemical Biology (Ministry of Education), Tsinghua University, Beijing 100084, China
| | - Jianwei Zhang
- School of Pharmaceutical Sciences, Key Laboratory of Bioorganic Phosphorous Chemistry & Chemical Biology (Ministry of Education), Tsinghua University, Beijing 100084, China
| | - Bei Zhang
- School of Pharmaceutical Sciences, Key Laboratory of Bioorganic Phosphorous Chemistry & Chemical Biology (Ministry of Education), Tsinghua University, Beijing 100084, China
| | - Jian Wang
- School of Pharmaceutical Sciences, Key Laboratory of Bioorganic Phosphorous Chemistry & Chemical Biology (Ministry of Education), Tsinghua University, Beijing 100084, China
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27
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Özbozkurt İK, Gülcemal D, Günnaz S, Gökçe AG, Çetinkaya B, Gülcemal S. Enhanced Catalytic Activity of Oxygen-Tethered IrIII
NHC Complexes in Aqueous Transfer Hydrogenative Reductive Amination Reactions: Experimental Kinetic and Mechanistic Study. ChemCatChem 2018. [DOI: 10.1002/cctc.201800558] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
| | - Derya Gülcemal
- Department of Chemistry; Ege University; 35100 Bornova, Izmir Turkey
| | - Salih Günnaz
- Department of Chemistry; Ege University; 35100 Bornova, Izmir Turkey
| | - Aytaç Gürhan Gökçe
- Department of Physics; Adnan Menderes University; 09010 Efeler, Aydın Turkey
| | - Bekir Çetinkaya
- Department of Chemistry; Ege University; 35100 Bornova, Izmir Turkey
| | - Süleyman Gülcemal
- Department of Chemistry; Ege University; 35100 Bornova, Izmir Turkey
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28
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Ichikawa S, Zhu S, Buchwald SL. A Modified System for the Synthesis of Enantioenriched N-Arylamines through Copper-Catalyzed Hydroamination. Angew Chem Int Ed Engl 2018; 57:8714-8718. [PMID: 29847002 PMCID: PMC6033674 DOI: 10.1002/anie.201803026] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2018] [Revised: 04/27/2018] [Indexed: 02/03/2023]
Abstract
Despite significant recent progress in copper-catalyzed enantioselective hydroamination chemistry, the synthesis of chiral N-arylamines, which are frequently found in natural products and pharmaceuticals, has not been realized. Initial experiments with N-arylhydroxylamine ester electrophiles were unsuccessful and, instead, their reduction in the presence of copper hydride (CuH) catalysts was observed. Herein, we report key modifications to our previously reported hydroamination methods that lead to broadly applicable conditions for the enantioselective net addition of secondary anilines across the double bond of styrenes, 1,1-disubstituted olefins, and terminal alkenes. NMR studies suggest that suppression of the undesired reduction pathway is the basis for the dramatic improvements in yield under the reported method.
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Affiliation(s)
- Saki Ichikawa
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Shaolin Zhu
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Stephen L Buchwald
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
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29
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Ichikawa S, Zhu S, Buchwald SL. A Modified System for the Synthesis of Enantioenriched
N
‐Arylamines through Copper‐Catalyzed Hydroamination. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201803026] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Saki Ichikawa
- Department of Chemistry Massachusetts Institute of Technology Cambridge MA 02139 USA
| | - Shaolin Zhu
- Department of Chemistry Massachusetts Institute of Technology Cambridge MA 02139 USA
| | - Stephen L. Buchwald
- Department of Chemistry Massachusetts Institute of Technology Cambridge MA 02139 USA
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30
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Tan X, Gao S, Zeng W, Xin S, Yin Q, Zhang X. Asymmetric Synthesis of Chiral Primary Amines by Ruthenium-Catalyzed Direct Reductive Amination of Alkyl Aryl Ketones with Ammonium Salts and Molecular H2. J Am Chem Soc 2018; 140:2024-2027. [DOI: 10.1021/jacs.7b12898] [Citation(s) in RCA: 110] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Xuefeng Tan
- Department
of Chemistry, Southern University of Science and Technology, Shenzhen 518000, People’s Republic of China
| | - Shuang Gao
- Department
of Chemistry, Southern University of Science and Technology, Shenzhen 518000, People’s Republic of China
| | - Weijun Zeng
- Department
of Chemistry, Southern University of Science and Technology, Shenzhen 518000, People’s Republic of China
| | - Shan Xin
- Department
of Chemistry, Southern University of Science and Technology, Shenzhen 518000, People’s Republic of China
| | - Qin Yin
- Department
of Chemistry, Southern University of Science and Technology, Shenzhen 518000, People’s Republic of China
- Academy
for Advanced Interdisciplinary Studies, Southern University of Science and Technology, Shenzhen 518000, People’s Republic of China
| | - Xumu Zhang
- Department
of Chemistry, Southern University of Science and Technology, Shenzhen 518000, People’s Republic of China
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31
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Chen J, Chen X, Zhang Z, Bao Z, Xing H, Yang Q, Ren Q. MIL-101(Cr) as a synergistic catalyst for the reduction of imines with trichlorosilane. Molecular Catalysis 2018. [DOI: 10.1016/j.mcat.2017.11.012] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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32
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France SP, Howard RM, Steflik J, Weise NJ, Mangas-Sanchez J, Montgomery SL, Crook R, Kumar R, Turner NJ. Identification of Novel Bacterial Members of the Imine Reductase Enzyme Family that Perform Reductive Amination. ChemCatChem 2018. [DOI: 10.1002/cctc.201701408] [Citation(s) in RCA: 63] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Scott P. France
- School of Chemistry; University of Manchester; Manchester Institute of Biotechnology; 131 Princess Street Manchester M1 7DN UK
| | - Roger M. Howard
- Groton Laboratories; Pfizer Worldwide Research and Development; 445 Eastern Point Road Groton Connecticut 06340 USA
- Sandwich Laboratories; Pfizer Worldwide Research and Development; Discovery Park, Sandwich Kent CT13 9NJ UK
| | - Jeremy Steflik
- Groton Laboratories; Pfizer Worldwide Research and Development; 445 Eastern Point Road Groton Connecticut 06340 USA
| | - Nicholas J. Weise
- School of Chemistry; University of Manchester; Manchester Institute of Biotechnology; 131 Princess Street Manchester M1 7DN UK
| | - Juan Mangas-Sanchez
- School of Chemistry; University of Manchester; Manchester Institute of Biotechnology; 131 Princess Street Manchester M1 7DN UK
| | - Sarah L. Montgomery
- School of Chemistry; University of Manchester; Manchester Institute of Biotechnology; 131 Princess Street Manchester M1 7DN UK
| | - Robert Crook
- Sandwich Laboratories; Pfizer Worldwide Research and Development; Discovery Park, Sandwich Kent CT13 9NJ UK
| | - Rajesh Kumar
- Groton Laboratories; Pfizer Worldwide Research and Development; 445 Eastern Point Road Groton Connecticut 06340 USA
| | - Nicholas J. Turner
- School of Chemistry; University of Manchester; Manchester Institute of Biotechnology; 131 Princess Street Manchester M1 7DN UK
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33
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Yang T, Yin Q, Gu G, Zhang X. A one-pot process for the enantioselective synthesis of tetrahydroquinolines and tetrahydroisoquinolines via asymmetric reductive amination (ARA). Chem Commun (Camb) 2018; 54:7247-7250. [DOI: 10.1039/c8cc03586e] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Asymmetric reductive amination for the synthesis of both chiral tetrahydroquinolines and tetrahydroisoquinolines has been realized with an Ir/ZhaoPhos catalytic system via a one-pot N-Boc deprotection/intramolecular asymmetric reductive amination (ARA) sequence.
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Affiliation(s)
- Tao Yang
- Department of Chemistry
- Southern University of Science and Technology
- Shenzhen
- P. R. China
| | - Qin Yin
- Department of Chemistry
- Southern University of Science and Technology
- Shenzhen
- P. R. China
| | - Guoxian Gu
- Department of Chemistry
- Southern University of Science and Technology
- Shenzhen
- P. R. China
| | - Xumu Zhang
- Department of Chemistry
- Southern University of Science and Technology
- Shenzhen
- P. R. China
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34
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Abstract
A concise synthesis of chiral indolines has been developed through intramolecular condensation, deprotection and palladium-catalyzed asymmetric hydrogenation in a one-pot process with up to 96% ee. A strong Brønsted acid played an important role in both the formation of indoles and asymmetric hydrogenation process.
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Affiliation(s)
- Chang-Bin Yu
- State Key Laboratory of Catalysis
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- P. R. China
| | - Jie Wang
- State Key Laboratory of Catalysis
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- P. R. China
| | - Yong-Gui Zhou
- State Key Laboratory of Catalysis
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- P. R. China
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35
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Gallardo-Donaire J, Hermsen M, Wysocki J, Ernst M, Rominger F, Trapp O, Hashmi ASK, Schäfer A, Comba P, Schaub T. Direct Asymmetric Ruthenium-Catalyzed Reductive Amination of Alkyl–Aryl Ketones with Ammonia and Hydrogen. J Am Chem Soc 2017; 140:355-361. [DOI: 10.1021/jacs.7b10496] [Citation(s) in RCA: 87] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Joan Gallardo-Donaire
- Catalysis Research Laboratory (CaRLa), Im Neuenheimer Feld 584, 69120 Heidelberg, Germany
| | - Marko Hermsen
- Catalysis Research Laboratory (CaRLa), Im Neuenheimer Feld 584, 69120 Heidelberg, Germany
- BASF SE, Quantum Chemistry and Molecular Simulation, Carl-Bosch-Strasse 38, 67056 Ludwigshafen, Germany
| | - Jedrzej Wysocki
- Catalysis Research Laboratory (CaRLa), Im Neuenheimer Feld 584, 69120 Heidelberg, Germany
| | - Martin Ernst
- BASF SE, Synthesis and Homogeneous Catalysis, Carl-Bosch-Strasse 38, 67056 Ludwigshafen, Germany
| | - Frank Rominger
- Organisch-Chemisches
Institut, Heidelberg University, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Oliver Trapp
- Catalysis Research Laboratory (CaRLa), Im Neuenheimer Feld 584, 69120 Heidelberg, Germany
- Department
Chemie, Ludwig-Maximilians-Universität München, Butenandtstr.
5-13, 81377 München, Germany
| | - A. Stephen K. Hashmi
- Catalysis Research Laboratory (CaRLa), Im Neuenheimer Feld 584, 69120 Heidelberg, Germany
- Organisch-Chemisches
Institut, Heidelberg University, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Ansgar Schäfer
- BASF SE, Quantum Chemistry and Molecular Simulation, Carl-Bosch-Strasse 38, 67056 Ludwigshafen, Germany
| | - Peter Comba
- Catalysis Research Laboratory (CaRLa), Im Neuenheimer Feld 584, 69120 Heidelberg, Germany
- Anorganisch-Chemisches
Institut, Heidelberg University and Interdisciplinary Center for Scientific Computing (IWR), Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Thomas Schaub
- Catalysis Research Laboratory (CaRLa), Im Neuenheimer Feld 584, 69120 Heidelberg, Germany
- BASF SE, Synthesis and Homogeneous Catalysis, Carl-Bosch-Strasse 38, 67056 Ludwigshafen, Germany
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36
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Affiliation(s)
- Ying Zhang
- Key Laboratory of Radiopharmaceuticals,
College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Qiaozhi Yan
- Key Laboratory of Radiopharmaceuticals,
College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Guofu Zi
- Key Laboratory of Radiopharmaceuticals,
College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Guohua Hou
- Key Laboratory of Radiopharmaceuticals,
College of Chemistry, Beijing Normal University, Beijing 100875, China
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37
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Huang H, Zhao Y, Yang Y, Zhou L, Chang M. Direct Catalytic Asymmetric Reductive Amination of Aliphatic Ketones Utilizing Diphenylmethanamine as Coupling Partner. Org Lett 2017; 19:1942-1945. [PMID: 28362503 DOI: 10.1021/acs.orglett.7b00212] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The highly efficient direct catalytic reductive amination of ketones with diphenylmethanamine catalyzed by iridium-phosphoramidite complexes is described. As an effective coupling partner, diphenylmethanamine is suitable for a wide range of ketones to provide chiral amines in high yields and enantioselectivity. The chiral monodentate phosphoramidite ligands are tunable and competent to accommodate substrates with different structures.
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Affiliation(s)
- Haizhou Huang
- College of Chemistry and Pharmacy, Northwest A&F University , 22 Xinong Road, Yangling, Shaanxi 712100, PR China
| | - Yunfei Zhao
- College of Chemistry and Pharmacy, Northwest A&F University , 22 Xinong Road, Yangling, Shaanxi 712100, PR China
| | - Yang Yang
- College of Chemistry and Pharmacy, Northwest A&F University , 22 Xinong Road, Yangling, Shaanxi 712100, PR China
| | - Le Zhou
- College of Chemistry and Pharmacy, Northwest A&F University , 22 Xinong Road, Yangling, Shaanxi 712100, PR China
| | - Mingxin Chang
- College of Chemistry and Pharmacy, Northwest A&F University , 22 Xinong Road, Yangling, Shaanxi 712100, PR China
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Maya RJ, Poulose S, John J, Luxmi Varma R. Direct Reductive Amination of AldehydesviaEnvironmentally Benign Bentonite-Gold Nanohybrid Catalysis. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201601042] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- R. J. Maya
- Academy of Scientific and Innovative Research (AcSIR); CSIR-NIIST; Thiruvananthapuram - 695019 India
- Organic Chemistry Section; CSIR-National Institute for Interdisciplinary Science and Technology; Thiruvananthapuram - 695019 India
| | - Susanna Poulose
- Organic Chemistry Section; CSIR-National Institute for Interdisciplinary Science and Technology; Thiruvananthapuram - 695019 India
| | - Jubi John
- Organic Chemistry Section; CSIR-National Institute for Interdisciplinary Science and Technology; Thiruvananthapuram - 695019 India
| | - R. Luxmi Varma
- Academy of Scientific and Innovative Research (AcSIR); CSIR-NIIST; Thiruvananthapuram - 695019 India
- Organic Chemistry Section; CSIR-National Institute for Interdisciplinary Science and Technology; Thiruvananthapuram - 695019 India
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39
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Zhou H, Liu Y, Yang S, Zhou L, Chang M. One-Pot N-Deprotection and Catalytic Intramolecular Asymmetric Reductive Amination for the Synthesis of Tetrahydroisoquinolines. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201611181] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Huan Zhou
- Department of Chemistry and Chemical Engineering; Northwest A&F University; 22 Xinong Road, Yangling Shaanxi 712100 PR China
| | - Yuan Liu
- Department of Chemistry and Chemical Engineering; Northwest A&F University; 22 Xinong Road, Yangling Shaanxi 712100 PR China
| | - Suhua Yang
- Department of Chemistry and Chemical Engineering; Northwest A&F University; 22 Xinong Road, Yangling Shaanxi 712100 PR China
| | - Le Zhou
- Department of Chemistry and Chemical Engineering; Northwest A&F University; 22 Xinong Road, Yangling Shaanxi 712100 PR China
| | - Mingxin Chang
- Department of Chemistry and Chemical Engineering; Northwest A&F University; 22 Xinong Road, Yangling Shaanxi 712100 PR China
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40
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Zhou H, Liu Y, Yang S, Zhou L, Chang M. One-Pot N-Deprotection and Catalytic Intramolecular Asymmetric Reductive Amination for the Synthesis of Tetrahydroisoquinolines. Angew Chem Int Ed Engl 2017; 56:2725-2729. [PMID: 28140506 DOI: 10.1002/anie.201611181] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [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: 11/15/2016] [Indexed: 01/09/2023]
Abstract
A one-pot N-Boc deprotection and catalytic intramolecular reductive amination protocol for the preparation of enantiomerically pure tetrahydroisoquinoline alkaloids is described. The iodine-bridged dimeric iridium complexes displayed superb stereoselectivity to give tetrahydroisoquinolines, including several key pharmaceutical drug intermediates, in excellent yields under mild reaction conditions. Three additives played important roles in this reaction: Titanium(IV) isopropoxide and molecular iodine accelerated the transformation of the intermediate imine to the tetrahydroisoquinoline product; p-toluenesulfonic acid contributed to the stereocontrol.
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Affiliation(s)
- Huan Zhou
- Department of Chemistry and Chemical Engineering, Northwest A&F University, 22 Xinong Road, Yangling, Shaanxi, 712100, PR China
| | - Yuan Liu
- Department of Chemistry and Chemical Engineering, Northwest A&F University, 22 Xinong Road, Yangling, Shaanxi, 712100, PR China
| | - Suhua Yang
- Department of Chemistry and Chemical Engineering, Northwest A&F University, 22 Xinong Road, Yangling, Shaanxi, 712100, PR China
| | - Le Zhou
- Department of Chemistry and Chemical Engineering, Northwest A&F University, 22 Xinong Road, Yangling, Shaanxi, 712100, PR China
| | - Mingxin Chang
- Department of Chemistry and Chemical Engineering, Northwest A&F University, 22 Xinong Road, Yangling, Shaanxi, 712100, PR China
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41
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Abstract
Diphenylmethanamine offers excellent stereocontrol and easy deprotection to provide primary amines in the studied asymmetric reductive amination.
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Affiliation(s)
- Haizhou Huang
- Shaanxi Key Laboratory of Natural Products & Chemical Biology
- College of Chemistry & Pharmacy
- Northwest A&F University
- Shaanxi 712100
- PR China
| | - Zitong Wu
- Shaanxi Key Laboratory of Natural Products & Chemical Biology
- College of Chemistry & Pharmacy
- Northwest A&F University
- Shaanxi 712100
- PR China
| | - Guorui Gao
- College of Chemistry
- Chemical Engineering and Materials Science
- Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong
- Shandong Normal University
- Jinan 250014
| | - Le Zhou
- Shaanxi Key Laboratory of Natural Products & Chemical Biology
- College of Chemistry & Pharmacy
- Northwest A&F University
- Shaanxi 712100
- PR China
| | - Mingxin Chang
- Shaanxi Key Laboratory of Natural Products & Chemical Biology
- College of Chemistry & Pharmacy
- Northwest A&F University
- Shaanxi 712100
- PR China
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42
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Affiliation(s)
- Haizhou Huang
- Department of Chemistry and Chemical Engineering; Northwest A&F University; 22 Xinong Road, Yangling Shaanxi 712100 PR China
| | - Xiaoyan Liu
- Department of Chemistry and Chemical Engineering; Northwest A&F University; 22 Xinong Road, Yangling Shaanxi 712100 PR China
| | - Le Zhou
- Department of Chemistry and Chemical Engineering; Northwest A&F University; 22 Xinong Road, Yangling Shaanxi 712100 PR China
| | - Mingxin Chang
- Department of Chemistry and Chemical Engineering; Northwest A&F University; 22 Xinong Road, Yangling Shaanxi 712100 PR China
| | - Xumu Zhang
- Department of Chemistry and Chemical Biology; Rutgers, The State University of New Jersey; Piscataway NJ 08854 USA
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43
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Huang H, Liu X, Zhou L, Chang M, Zhang X. Direct Asymmetric Reductive Amination for the Synthesis of Chiral β-Arylamines. Angew Chem Int Ed Engl 2016; 55:5309-12. [DOI: 10.1002/anie.201601025] [Citation(s) in RCA: 67] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2016] [Indexed: 11/06/2022]
Affiliation(s)
- Haizhou Huang
- Department of Chemistry and Chemical Engineering; Northwest A&F University; 22 Xinong Road, Yangling Shaanxi 712100 PR China
| | - Xiaoyan Liu
- Department of Chemistry and Chemical Engineering; Northwest A&F University; 22 Xinong Road, Yangling Shaanxi 712100 PR China
| | - Le Zhou
- Department of Chemistry and Chemical Engineering; Northwest A&F University; 22 Xinong Road, Yangling Shaanxi 712100 PR China
| | - Mingxin Chang
- Department of Chemistry and Chemical Engineering; Northwest A&F University; 22 Xinong Road, Yangling Shaanxi 712100 PR China
| | - Xumu Zhang
- Department of Chemistry and Chemical Biology; Rutgers, The State University of New Jersey; Piscataway NJ 08854 USA
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44
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Gülcemal D, Gülcemal S, Robertson CM, Xiao J. A New Phenoxide Chelated IrIII N-Heterocyclic Carbene Complex and Its Application in Reductive Amination Reactions. Organometallics 2015. [DOI: 10.1021/acs.organomet.5b00625] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [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)
- Derya Gülcemal
- Department
of Chemistry, University of Liverpool, Liverpool, L69 7ZD, U.K
- Department
of Chemistry, Ege University, 35100 Bornova-Izmir, Turkey
| | - Süleyman Gülcemal
- Department
of Chemistry, University of Liverpool, Liverpool, L69 7ZD, U.K
- Department
of Chemistry, Ege University, 35100 Bornova-Izmir, Turkey
| | - Craig M. Robertson
- Department
of Chemistry, University of Liverpool, Liverpool, L69 7ZD, U.K
| | - Jianliang Xiao
- Department
of Chemistry, University of Liverpool, Liverpool, L69 7ZD, U.K
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45
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46
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Zhou S, Fleischer S, Jiao H, Junge K, Beller M. Cooperative Catalysis with Iron and a Chiral Brønsted Acid for Asymmetric Reductive Amination of Ketones. Adv Synth Catal 2014. [DOI: 10.1002/adsc.201400328] [Citation(s) in RCA: 85] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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47
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Talwar D, Poyatos Salguero N, Robertson CM, Xiao J. Primary amines by transfer hydrogenative reductive amination of ketones by using cyclometalated Ir(III) catalysts. Chemistry 2014; 20:245-52. [PMID: 24516890 DOI: 10.1002/chem.201303541] [Citation(s) in RCA: 97] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Cyclometalated iridium complexes are found to be versatile catalysts for the direct reductive amination (DRA) of carbonyls to give primary amines under transfer-hydrogenation conditions with ammonium formate as both the nitrogen and hydrogen source. These complexes are easy to synthesise and their ligands can be easily tuned. The activity and chemoselectivity of the catalyst towards primary amines is excellent, with a substrate to catalyst ratio (S/C) of 1000 being feasible. Both aromatic and aliphatic primary amines were obtained in high yields. Moreover, a first example of homogeneously catalysed transfer-hydrogenative DRA has been realised for β-keto ethers, leading to the corresponding β-amino ethers. In addition, non-natural α-amino acids could also be obtained in excellent yields with this method.
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48
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Zhao Q, Wen J, Tan R, Huang K, Metola P, Wang R, Anslyn EV, Zhang X. Rhodium-catalyzed asymmetric hydrogenation of unprotected NH imines assisted by a thiourea. Angew Chem Int Ed Engl 2014; 53:8467-70. [PMID: 24939397 PMCID: PMC5989712 DOI: 10.1002/anie.201404570] [Citation(s) in RCA: 108] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2014] [Revised: 05/12/2014] [Indexed: 11/10/2022]
Abstract
Asymmetric hydrogenation of unprotected NH imines catalyzed by rhodium/bis(phosphine)-thiourea provided chiral amines with up to 97% yield and 95% ee. (1)H NMR studies, coupled with control experiments, implied that catalytic chloride-bound intermediates were involved in the mechanism through a dual hydrogen-bonding interaction. Deuteration experiments proved that the hydrogenation proceeded through a pathway consistent with an imine.
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Affiliation(s)
- Qingyang Zhao
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, Lanzhou University, Lanzhou 730000 (China); Department of Chemistry &Chemical Biology, Department of Medicinal Chemistry, Rutgers, The State University of New Jersey, 610 Taylor Road, Piscataway, NJ 08854 (USA)
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49
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Zhao Q, Wen J, Tan R, Huang K, Metola P, Wang R, Anslyn EV, Zhang X. Rhodium-Catalyzed Asymmetric Hydrogenation of Unprotected NH Imines Assisted by a Thiourea. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201404570] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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50
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Yamashita M, Negoro N, Yasuma T, Yamano T. Preparation of (2,3-Dihydrobenzofuran-3-yl)acetic Acid via Rh-Catalyzed Asymmetric Hydrogenation. BCSJ 2014. [DOI: 10.1246/bcsj.20130324] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Masayuki Yamashita
- Chemical Development Laboratories, CMC Center, Takeda Pharmaceutical Company Limited
| | - Nobuyuki Negoro
- Pharmaceutical Research Division, Takeda Pharmaceutical Company Limited
| | - Tsuneo Yasuma
- Chemical Development Laboratories, CMC Center, Takeda Pharmaceutical Company Limited
| | - Toru Yamano
- Environment and Safety Department, Takeda Pharmaceutical Company Limited
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