1
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Kumar R, Deepak, Jain N. 1O 2 and Base Assisted Oxidative Conversion of β-Enaminoesters to α-Acyloxy-β-ketoesters under Visible Light Irradiation. J Org Chem 2024; 89:14472-14482. [PMID: 39297950 DOI: 10.1021/acs.joc.4c01994] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/05/2024]
Abstract
Singlet oxygen (1O2) and base assisted conversion of β-enaminoesters to α-acyloxy-β-ketoesters is demonstrated under visible light irradiation. The reaction involves formation of an imine intermediate via ene-type pathway initiated by 1O2 followed by base promoted dimerization and hydrolysis steps. The method is mild, environmentally friendly, requires air as the oxidant, and gives the products in moderate to high yields.
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Affiliation(s)
- Rohit Kumar
- Department of Chemistry, Indian Institute of Technology Delhi, New Delhi 110016, India
| | - Deepak
- Department of Chemistry, Indian Institute of Technology Delhi, New Delhi 110016, India
| | - Nidhi Jain
- Department of Chemistry, Indian Institute of Technology Delhi, New Delhi 110016, India
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2
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Imamoto T. P-Stereogenic Phosphorus Ligands in Asymmetric Catalysis. Chem Rev 2024; 124:8657-8739. [PMID: 38954764 DOI: 10.1021/acs.chemrev.3c00875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/04/2024]
Abstract
Chiral phosphorus ligands play a crucial role in asymmetric catalysis for the efficient synthesis of useful optically active compounds. They are largely categorized into two classes: backbone chirality ligands and P-stereogenic phosphorus ligands. Most of the reported ligands belong to the former class. Privileged ones such as BINAP and DuPhos are frequently employed in a wide range of catalytic asymmetric transformations. In contrast, the latter class of P-stereogenic phosphorus ligands has remained a small family for many years mainly because of their synthetic difficulty. The late 1990s saw the emergence of novel P-stereogenic phosphorus ligands with their superior enantioinduction ability in Rh-catalyzed asymmetric hydrogenation reactions. Since then, numerous P-stereogenic phosphorus ligands have been synthesized and used in catalytic asymmetric reactions. This Review summarizes P-stereogenic phosphorus ligands reported thus far, including their stereochemical and electronic properties that afford high to excellent enantioselectivities. Examples of reactions that use this class of ligands are described together with their applications in the construction of key intermediates for the synthesis of optically active natural products and therapeutic agents. The literature covered dates back to 1968 up until December 2023, centering on studies published in the late 1990s and later years.
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Affiliation(s)
- Tsuneo Imamoto
- Department of Chemistry, Graduate School of Science, Chiba University, Chiba 263-8522, Japan
- Division of Applied Chemistry, Graduate School of Engineering, Hokkaido University, Sapporo, Hokkaido 060-8628, Japan
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3
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Liu J, Deng R, Liang X, Zhou M, Zheng P, Chi YR. Carbene-Catalyzed and Pnictogen Bond-Assisted Access to P III-Stereogenic Compounds. Angew Chem Int Ed Engl 2024; 63:e202404477. [PMID: 38669345 DOI: 10.1002/anie.202404477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2024] [Revised: 04/15/2024] [Accepted: 04/25/2024] [Indexed: 04/28/2024]
Abstract
Intermolecular pnictogen bonding (PnB) catalysis has received increased interest in non-covalent organocatalysis. It has been demonstrated that organic electron-deficient pnictogen atoms can act as prospective Lewis acids. Here, we present a catalytic approach for the asymmetric synthesis of chiral PIII compounds by combining intramolecular PnB interactions and carbene catalysis. Our design features a pre-chiral phosphorus molecule bearing two electron-withdrawing benzoyl groups, resulting in the formation of a σ-hole at the P atom. X-ray and non-covalent interaction (NCI) analysis indicate that the model substrates exhibit intrinsic PnB interaction between the oxygen atom of the formyl group and the phosphorus atom. This induces a conformational locking effect, leading to the crystallization of the phosphorus substrate in a preferred conformation (P212121 chiral group). Under the catalysis of N-heterocyclic carbene, the aldehyde moiety activated by the pnictogen bond selectively reacts with an alcohol to yield the corresponding chiral monoester/phosphorus product with excellent enantioselectivity. This Lewis acidic phosphorus center, aroused by the non-polarized intramolecular pnictogen bond interaction, assists in conformational and selective regulations, providing unique opportunities for catalysis and beyond.
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Affiliation(s)
- Jianjian Liu
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, 550025, Guiyang, China
| | - Rui Deng
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, 550025, Guiyang, China
| | - Xuyang Liang
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, 550025, Guiyang, China
| | - Mali Zhou
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, 550025, Guiyang, China
| | - Pengcheng Zheng
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, 550025, Guiyang, China
| | - Yonggui Robin Chi
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, 550025, Guiyang, China
- School of chemistry, chemical engineering, and biotechnology, Nanyang Technological University, 637371, Singapore, Singapore
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4
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Hourtoule M, Zheng Y, Perfetto A, Luise D, Ciofini I, Miesch L. One-Pot anti-Michael Regio- and Stereoselective Hydroamination of Activated N-Allenamides. J Org Chem 2022; 87:5404-5411. [PMID: 35344371 DOI: 10.1021/acs.joc.2c00302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
N-Allenamides, substituted by an ester at the γ-position, were obtained through addition of terminal ynamides with ethyl diazoacetate under copper catalysis for the first time. Regio- and stereoselective hydroamination of those activated N-allenamides provided exclusively E-configured captodative enamimes through a one-pot anti-Michael addition. Numerous ynamides as well as various secondary amines were adapted in this process.
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Affiliation(s)
- Maxime Hourtoule
- Equipe Synthèse Organique et Phytochimie, Institut de Chimie, CNRS-UdS, UMR 7177, 4 rue Blaise Pascal, CS 90032, 67081 Strasbourg, France
| | - Yongxiang Zheng
- Equipe Synthèse Organique et Phytochimie, Institut de Chimie, CNRS-UdS, UMR 7177, 4 rue Blaise Pascal, CS 90032, 67081 Strasbourg, France
| | - Anna Perfetto
- Chimie ParisTech, PSL University, CNRS, Institute of Chemistry for Life and Health Sciences, Chemical Theory and Modelling Group, F-75005 Paris, France
| | - Davide Luise
- Chimie ParisTech, PSL University, CNRS, Institute of Chemistry for Life and Health Sciences, Chemical Theory and Modelling Group, F-75005 Paris, France
| | - Ilaria Ciofini
- Chimie ParisTech, PSL University, CNRS, Institute of Chemistry for Life and Health Sciences, Chemical Theory and Modelling Group, F-75005 Paris, France
| | - Laurence Miesch
- Equipe Synthèse Organique et Phytochimie, Institut de Chimie, CNRS-UdS, UMR 7177, 4 rue Blaise Pascal, CS 90032, 67081 Strasbourg, France
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5
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Cabré A, Verdaguer X, Riera A. Recent Advances in the Enantioselective Synthesis of Chiral Amines via Transition Metal-Catalyzed Asymmetric Hydrogenation. Chem Rev 2022; 122:269-339. [PMID: 34677059 PMCID: PMC9998038 DOI: 10.1021/acs.chemrev.1c00496] [Citation(s) in RCA: 132] [Impact Index Per Article: 66.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Chiral amines are key structural motifs present in a wide variety of natural products, drugs, and other biologically active compounds. During the past decade, significant advances have been made with respect to the enantioselective synthesis of chiral amines, many of them based on catalytic asymmetric hydrogenation (AH). The present review covers the use of AH in the synthesis of chiral amines bearing a stereogenic center either in the α, β, or γ position with respect to the nitrogen atom, reported from 2010 to 2020. Therefore, we provide an overview of the recent advances in the AH of imines, enamides, enamines, allyl amines, and N-heteroaromatic compounds.
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Affiliation(s)
- Albert Cabré
- Institute
for Research in Biomedicine (IRB Barcelona), The Barcelona Institute of Science and Technology, Baldiri Reixac 10, Barcelona E-08028, Spain
- Departament
de Química Inorgànica i Orgànica, Secció de Química Orgànica, Universitat
de Barcelona, Martí
i Franquès 1, Barcelona E-08028, Spain
| | - Xavier Verdaguer
- Institute
for Research in Biomedicine (IRB Barcelona), The Barcelona Institute of Science and Technology, Baldiri Reixac 10, Barcelona E-08028, Spain
- Departament
de Química Inorgànica i Orgànica, Secció de Química Orgànica, Universitat
de Barcelona, Martí
i Franquès 1, Barcelona E-08028, Spain
| | - Antoni Riera
- Institute
for Research in Biomedicine (IRB Barcelona), The Barcelona Institute of Science and Technology, Baldiri Reixac 10, Barcelona E-08028, Spain
- Departament
de Química Inorgànica i Orgànica, Secció de Química Orgànica, Universitat
de Barcelona, Martí
i Franquès 1, Barcelona E-08028, Spain
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6
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Wan F, Tang W. Phosphorus Ligands from the Zhang Lab: Design, Asymmetric Hydrogenation, and Industrial Applications. CHINESE J CHEM 2021. [DOI: 10.1002/cjoc.202000605] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Feng Wan
- State Key Laboratory of Bio‐Organic & Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 China
| | - Wenjun Tang
- State Key Laboratory of Bio‐Organic & Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 China
- School of Chemistry and Materials Science, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences 1 Sub‐lane Xiangshan Hangzhou Zhejiang 310024 China
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7
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Zhang X, Gao Y, Hu X, Ji C, Liu Y, Yu J. Recent Advances in Catalytic Enantioselective Synthesis of Fluorinated α‐ and β‐Amino Acids. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000966] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Xue‐Xin Zhang
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development School of Chemistry and Molecular Engineering East China Normal University Shanghai 200062 People's Republic of China
| | - Yang Gao
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development School of Chemistry and Molecular Engineering East China Normal University Shanghai 200062 People's Republic of China
| | - Xiao‐Si Hu
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development School of Chemistry and Molecular Engineering East China Normal University Shanghai 200062 People's Republic of China
| | - Cong‐Bin Ji
- School of Chemistry and Environmental Sciences Shangrao Normal University Jiangxi 334001 People's Republic of China
| | - Yun‐Lin Liu
- School of Chemistry and Chemical Engineering Guangzhou University Guangzhou 510006 People's Republic of China
| | - Jin‐Sheng Yu
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development School of Chemistry and Molecular Engineering East China Normal University Shanghai 200062 People's Republic of China
- Key Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education Hainan Normal University Haikou 571158 People's Republic of China
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8
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Hasdemir B, Yaşa H, Yıldız T, Küçük HB, Onar HÇ. Asymmetric Synthesis of Chiral γ‐ and δ‐Amino Esters Using Trichlorosilane Activated with a Lewis Base Catalyst. ChemistrySelect 2020. [DOI: 10.1002/slct.202000790] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Belma Hasdemir
- Istanbul University-Cerrahpaşa Department of Chemistry Faculty of Engineering 34320 Avcılar Istanbul Turkey
| | - Hasniye Yaşa
- Istanbul University-Cerrahpaşa Department of Chemistry Faculty of Engineering 34320 Avcılar Istanbul Turkey
| | - Tülay Yıldız
- Istanbul University-Cerrahpaşa Department of Chemistry Faculty of Engineering 34320 Avcılar Istanbul Turkey
| | - Hatice Başpınar Küçük
- Istanbul University-Cerrahpaşa Department of Chemistry Faculty of Engineering 34320 Avcılar Istanbul Turkey
| | - Hülya Çelik Onar
- Istanbul University-Cerrahpaşa Department of Chemistry Faculty of Engineering 34320 Avcılar Istanbul Turkey
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9
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Chen MW, Yang Q, Deng Z, Ding Q, Peng Y. Synthesis of Chiral β-Fluoroalkyl β-Amino Acid Derivatives via Palladium-Catalyzed Hydrogenation. J Org Chem 2019; 84:10371-10379. [PMID: 31318545 DOI: 10.1021/acs.joc.9b01523] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
An enantioselective palladium-catalyzed hydrogenation of β-fluoroalkyl β-amino acrylic acid derivatives has been successfully developed, providing the corresponding chiral β-fluoroalkyl β-amino acid derivatives in good yields with excellent enantioselectivities. In addition, chiral γ-fluoroalkyl γ-amino alcohol could be synthesized by a simple reduction of the corresponding hydrogenated product. The mechanism of the reaction was explored by deuterium-labeling experiments.
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Affiliation(s)
- Mu-Wang Chen
- Key Laboratory of Small Functional Organic Molecule, Ministry of Education, Jiangxi's Key Laboratory of Green Chemistry and College of Chemistry & Chemical Engineering , Jiangxi Normal University , Nanchang , Jiangxi 330022 , China.,State Key Laboratory of Fine Chemicals , Dalian University of Technology , Dalian 116024 , China
| | - Qin Yang
- Key Laboratory of Small Functional Organic Molecule, Ministry of Education, Jiangxi's Key Laboratory of Green Chemistry and College of Chemistry & Chemical Engineering , Jiangxi Normal University , Nanchang , Jiangxi 330022 , China
| | - Zhihong Deng
- Key Laboratory of Small Functional Organic Molecule, Ministry of Education, Jiangxi's Key Laboratory of Green Chemistry and College of Chemistry & Chemical Engineering , Jiangxi Normal University , Nanchang , Jiangxi 330022 , China
| | - Qiuping Ding
- Key Laboratory of Small Functional Organic Molecule, Ministry of Education, Jiangxi's Key Laboratory of Green Chemistry and College of Chemistry & Chemical Engineering , Jiangxi Normal University , Nanchang , Jiangxi 330022 , China
| | - Yiyuan Peng
- Key Laboratory of Small Functional Organic Molecule, Ministry of Education, Jiangxi's Key Laboratory of Green Chemistry and College of Chemistry & Chemical Engineering , Jiangxi Normal University , Nanchang , Jiangxi 330022 , China
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10
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Cunillera A, Ruiz A, Godard C. Synthesis of β
2,2
‐Amino Esters via Rh‐Catalysed Regioselective Hydroaminomethylation. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900642] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Anton Cunillera
- Department de Química Física i InorgànicaUniversitat Rovira i Virgili, C/Marcel⋅lí Domingo, n1 43007 Tarragona Spain
| | - Aurora Ruiz
- Department de Química Física i InorgànicaUniversitat Rovira i Virgili, C/Marcel⋅lí Domingo, n1 43007 Tarragona Spain
| | - Cyril Godard
- Department de Química Física i InorgànicaUniversitat Rovira i Virgili, C/Marcel⋅lí Domingo, n1 43007 Tarragona Spain
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11
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Li M, Xia HF, Yang LY, Hong T, Xie LJ, Li S, Wu J. Synthesis of N-aryl β-amino acid derivatives via Cu(ii)-catalyzed asymmetric 1,4-reduction in air. RSC Adv 2019; 9:9187-9192. [PMID: 35517703 PMCID: PMC9062089 DOI: 10.1039/c9ra01203f] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2019] [Accepted: 03/11/2019] [Indexed: 11/21/2022] Open
Abstract
In the presence of the inexpensive and stable stoichiometric reductant polymethylhydrosiloxane (PMHS) as well as certain amounts of appropriate alcohol and base additives, the non-precious metal copper-catalyzed asymmetric 1,4-hydrosilylation of β-aryl or β-alkyl-substituted N-aryl β-enamino esters was well realized to afford a diverse range of N-aryl β-amino acid esters in high yields and excellent enantioselectivities (26 examples, 90-98% ee). This approach tolerated the handling of both catalyst and reactants in air without special precautions. The chiral products obtained have been successfully converted to the corresponding enantiomerically enriched β-lactam and unprotected β-amino acid ester, which highlighted the synthetic utility of the developed catalytic procedure.
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Affiliation(s)
- Min Li
- College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University Hangzhou 310036 P. R. China
- Faculty of Materials Science and Chemical Engineering, Ningbo University Ningbo 315211 P. R. China
| | - Hong-Feng Xia
- College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University Hangzhou 310036 P. R. China
| | - Li-Yao Yang
- College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University Hangzhou 310036 P. R. China
| | - Tao Hong
- College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University Hangzhou 310036 P. R. China
| | - Lin-Jie Xie
- College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University Hangzhou 310036 P. R. China
| | - Shijun Li
- College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University Hangzhou 310036 P. R. China
| | - Jing Wu
- College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University Hangzhou 310036 P. R. China
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12
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Nayal OS, Thakur MS, Kumar M, Shaifali, Upadhyay R, Maurya SK. Sustainable and Efficient CuI-NPs-Catalyzed Cross-Coupling Approach for the Synthesis of Tertiary 3-Aminopropenoates, Triazoles, and Ciprofloxacin. ASIAN J ORG CHEM 2018. [DOI: 10.1002/ajoc.201700682] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Onkar S. Nayal
- Natural Product Chemistry and Process Development Division; Institute of Himalayan Bioresource Technology (CSIR-IHBT); Palampur Himachal Pradesh 176 061 India
- Academy of Scientific and Innovative Research; Institute of Himalayan Bioresource Technology (CSIR-IHBT); Palampur Himachal Pradesh 176 061 India
| | - Maheshwar S. Thakur
- Natural Product Chemistry and Process Development Division; Institute of Himalayan Bioresource Technology (CSIR-IHBT); Palampur Himachal Pradesh 176 061 India
- Academy of Scientific and Innovative Research; Institute of Himalayan Bioresource Technology (CSIR-IHBT); Palampur Himachal Pradesh 176 061 India
| | - Manoranjan Kumar
- Natural Product Chemistry and Process Development Division; Institute of Himalayan Bioresource Technology (CSIR-IHBT); Palampur Himachal Pradesh 176 061 India
- Academy of Scientific and Innovative Research; Institute of Himalayan Bioresource Technology (CSIR-IHBT); Palampur Himachal Pradesh 176 061 India
| | - Shaifali
- Natural Product Chemistry and Process Development Division; Institute of Himalayan Bioresource Technology (CSIR-IHBT); Palampur Himachal Pradesh 176 061 India
- Academy of Scientific and Innovative Research; Institute of Himalayan Bioresource Technology (CSIR-IHBT); Palampur Himachal Pradesh 176 061 India
| | - Rahul Upadhyay
- Natural Product Chemistry and Process Development Division; Institute of Himalayan Bioresource Technology (CSIR-IHBT); Palampur Himachal Pradesh 176 061 India
| | - Sushil K. Maurya
- Natural Product Chemistry and Process Development Division; Institute of Himalayan Bioresource Technology (CSIR-IHBT); Palampur Himachal Pradesh 176 061 India
- Academy of Scientific and Innovative Research; Institute of Himalayan Bioresource Technology (CSIR-IHBT); Palampur Himachal Pradesh 176 061 India
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13
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Imamoto T. Searching for Practically Useful P-Chirogenic Phosphine Ligands. CHEM REC 2016; 16:2655-2669. [DOI: 10.1002/tcr.201600098] [Citation(s) in RCA: 59] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2016] [Indexed: 12/12/2022]
Affiliation(s)
- Tsuneo Imamoto
- Organic R&D Department; Nippon Chemical Industrial Co., Ltd; Koto-ku Tokyo 136-8515 Japan
- Department of Chemistry, Graduate School of Science; Chiba University, Yayoi-cho; Inage-ku Chiba 263-8522 Japan
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14
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Organocatalytic Transfer Hydrogenation and Hydrosilylation Reactions. Top Curr Chem (Cham) 2016; 374:29. [DOI: 10.1007/s41061-016-0032-4] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2015] [Accepted: 04/26/2016] [Indexed: 10/21/2022]
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15
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Ye J, Wang C, Chen L, Wu X, Zhou L, Sun J. Chiral Lewis Base-Catalyzed, Enantioselective Reduction of Unprotected β-Enamino Esters with Trichlorosilane. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201501061] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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16
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Zhou M, Xue Z, Cao M, Dong XQ, Zhang X. Rhodium-catalyzed asymmetric hydrogenation of unprotected β-enamine phosphonates. Org Biomol Chem 2016; 14:4582-4. [DOI: 10.1039/c6ob00540c] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We have successfully developed a strategy for the first time for the enantioselective Rh-TaniaPhos catalyzed asymmetric hydrogenation of unprotected β-enamine phosphonates to free β-amino phosphonates directly with good enantioselectivities (80%–86% ee) and high conversions (>99% conversion).
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Affiliation(s)
- Ming Zhou
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan
- P. R. China
| | - Zejian Xue
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan
- P. R. China
| | - Min Cao
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan
- P. R. China
| | - Xiu-Qin Dong
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan
- P. R. China
| | - Xumu Zhang
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan
- P. R. China
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17
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Kleman P, Pizzano A. Rh catalyzed asymmetric olefin hydrogenation: enamides, enol esters and beyond. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.10.093] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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18
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Amézquita-Valencia M, Cabrera A. Cobalt-catalyzed hydrogenation of β-enamino esters using an internal mixture of bidentate and monodentate ligands. J Organomet Chem 2014. [DOI: 10.1016/j.jorganchem.2014.06.028] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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19
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de Miranda AS, Miranda LSM, de Souza ROMA. Ethyl acetate as an acyl donor in the continuous flow kinetic resolution of (±)-1-phenylethylamine catalyzed by lipases. Org Biomol Chem 2014; 11:3332-6. [PMID: 23558581 DOI: 10.1039/c3ob40437d] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The synthesis of chiral amines is still a challenge for organic synthesis since optically pure amines are of great importance for the pharmaceutical and agrochemical industries. Among all the methodologies developed until now, chemoenzymatic dynamic kinetic resolution has proven to be useful for the preparation of enantioenriched primary chiral amines. In our continuous efforts toward the development of a continuous flow process, herein we report our results on the continuous flow kinetic resolution of (±)-1-phenylethylamine leading to the desired products with high enantiomeric ratios (>200) and short residence times (40 minutes) using ethyl acetate as the acyl donor.
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Affiliation(s)
- Amanda S de Miranda
- Biocatalysis and Organic Synthesis Group, Federal University of Rio de Janeiro, Chemistry Institute, Rio de Janeiro, Brazil
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20
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Huang K, Emge TJ, Zhang X. Synthesis of a NovelP-Chiral 1,3-Oxaphospholane from Optically Pure Propylene Oxide. HETEROATOM CHEMISTRY 2014. [DOI: 10.1002/hc.21143] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Kexuan Huang
- Department of Chemistry and Chemical Biology; Rutgers; The State University of New Jersey; Piscataway New Jersey 08854
- Department of Medicinal Chemistry; Rutgers; The State University of New Jersey; Piscataway New Jersey 08854
| | - Thomas J. Emge
- Department of Chemistry and Chemical Biology; Rutgers; The State University of New Jersey; Piscataway New Jersey 08854
| | - Xumu Zhang
- Department of Chemistry and Chemical Biology; Rutgers; The State University of New Jersey; Piscataway New Jersey 08854
- Department of Medicinal Chemistry; Rutgers; The State University of New Jersey; Piscataway New Jersey 08854
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21
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de Miranda AS, de Souza ROMA, Miranda LSM. Ammonium formate as a green hydrogen source for clean semi-continuous enzymatic dynamic kinetic resolution of (+/−)-α-methylbenzylamine. RSC Adv 2014. [DOI: 10.1039/c4ra00462k] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
The chemoenzymatic dynamic kinetic resolution of (+/−)-α-methylbenzylamine under continuous flow conditions in the presence of Pd/BaSO4as racemization catalyst and ammonium formate as reductant is described.
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Affiliation(s)
- Amanda S. de Miranda
- Federal University of Rio de Janeiro
- Biocatalysis and Organic Synthesis Lab
- Chemistry Institute
- Rio de Janeiro, Brazil
| | - Rodrigo O. M. A. de Souza
- Federal University of Rio de Janeiro
- Biocatalysis and Organic Synthesis Lab
- Chemistry Institute
- Rio de Janeiro, Brazil
| | - Leandro S. M. Miranda
- Federal University of Rio de Janeiro
- Biocatalysis and Organic Synthesis Lab
- Chemistry Institute
- Rio de Janeiro, Brazil
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22
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Zhang X, Zhang-Negrerie D, Deng J, Du Y, Zhao K. Synthesis of Diversely Substituted Indoloquinolinones via Pd(II)/Cu(II)-Mediated Oxidative C–C Bond Formation and I(III)-Mediated C–N Bond Formation. J Org Chem 2013; 78:12750-9. [DOI: 10.1021/jo4023292] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Xiang Zhang
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China
| | - Daisy Zhang-Negrerie
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China
| | - Jun Deng
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
| | - Yunfei Du
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
| | - Kang Zhao
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China
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23
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Biava H, Budisa N. Biocatalytic synthesis of (2S)-5,5,5-trifluoroleucine and improved resolution into (2S,4S) and (2S,4R) diastereoisomers. Tetrahedron Lett 2013. [DOI: 10.1016/j.tetlet.2013.04.128] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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24
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Grellepois F. Enantiopure Trifluoromethylated β3,3-Amino Acids: Synthesis by Asymmetric Reformatsky Reaction with Stable Analogues of Trifluoromethyl N-tert-Butanesulfinylketoimines and Incorporation into α/β-Peptides. J Org Chem 2013; 78:1127-37. [DOI: 10.1021/jo302549v] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Fabienne Grellepois
- Université de Reims Champagne-Ardenne, Institut de Chimie Moléculaire
de Reims, CNRS UMR 7312,
UFR des Sciences Exactes et Naturelles, BP 1039, 51687 Reims Cedex
2, France
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25
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Chen X, Hu XY, Shu C, Zhang YH, Zheng YS, Jiang Y, Yuan WC, Liu B, Zhang XM. Synthesis of a series of novel chiral Lewis base catalysts and their application in promoting asymmetric hydrosilylation of β-enamino esters. Org Biomol Chem 2013; 11:3089-93. [PMID: 23563603 DOI: 10.1039/c3ob40430g] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Xing Chen
- Key Laboratory of Green Chemistry & Technology of Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610041 China
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26
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Lv J, Li J, Zhang-Negrerie D, Shang S, Gao Q, Du Y, Zhao K. Constructions of tetrahydro-γ-carboline skeletons via intramolecular oxidative carbon–carbon bond formation of enamines. Org Biomol Chem 2013; 11:1929-32. [DOI: 10.1039/c3ob00039g] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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27
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Kim SM, Yang JW. Organocatalytic asymmetric synthesis of β3-amino acid derivatives. Org Biomol Chem 2013; 11:4737-49. [DOI: 10.1039/c3ob40917a] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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28
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Sui Y, Fang Q, Li M, Hu Y, Xia H, Li S, Wu J. Cu(II)-Catalyzed Enantioselective Conjugate Reduction for the Synthesis of N-Aryl β-Amino Acid Esters. CHINESE J CHEM 2012. [DOI: 10.1002/cjoc.201200779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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29
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Synthesis of chiral β-amino acid derivatives by asymmetric hydrosilylation with an imidazole derived organocatalyst. Tetrahedron 2012. [DOI: 10.1016/j.tet.2012.04.084] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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30
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Xie JH, Zhu SF, Zhou QL. Recent advances in transition metal-catalyzed enantioselective hydrogenation of unprotected enamines. Chem Soc Rev 2012; 41:4126-39. [DOI: 10.1039/c2cs35007f] [Citation(s) in RCA: 134] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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31
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Wu X, Li Y, Wang C, Zhou L, Lu X, Sun J. Chiral Lewis base catalyzed highly enantioselective reduction of N-alkyl β-enamino esters with trichlorosilane and water. Chemistry 2011; 17:2846-8. [PMID: 21312301 DOI: 10.1002/chem.201003105] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2010] [Indexed: 11/07/2022]
Affiliation(s)
- Xinjun Wu
- Natural Products Research Center, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, PR China
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32
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Synthesis of N-phenyl β-amino acids via iridium-catalyzed asymmetric hydrogenation using mixed monodentate ligands. ACTA ACUST UNITED AC 2011. [DOI: 10.1016/j.tetasy.2010.11.026] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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33
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Xie JH, Zhu SF, Zhou QL. Transition Metal-Catalyzed Enantioselective Hydrogenation of Enamines and Imines. Chem Rev 2010; 111:1713-60. [DOI: 10.1021/cr100218m] [Citation(s) in RCA: 844] [Impact Index Per Article: 60.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jian-Hua Xie
- State Key Laboratory and Institute of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China
| | - Shou-Fei Zhu
- State Key Laboratory and Institute of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China
| | - Qi-Lin Zhou
- State Key Laboratory and Institute of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China
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34
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Nie J, Guo HC, Cahard D, Ma JA. Asymmetric construction of stereogenic carbon centers featuring a trifluoromethyl group from prochiral trifluoromethylated substrates. Chem Rev 2010; 111:455-529. [PMID: 21117644 DOI: 10.1021/cr100166a] [Citation(s) in RCA: 876] [Impact Index Per Article: 62.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jing Nie
- Department of Chemistry, Tianjin University, China
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35
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Catalytic asymmetric synthesis of both enantiomers of 4‑substituted 1,4-dihydropyridines with the use of bifunctional thiourea-ammonium salts bearing different counterions. Molecules 2010; 15:8305-26. [PMID: 21079568 PMCID: PMC6259149 DOI: 10.3390/molecules15118305] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2010] [Revised: 11/08/2010] [Accepted: 11/12/2010] [Indexed: 11/17/2022] Open
Abstract
Organoammonium salts composed of a Brønsted acid and an anilinothiourea promoted the Michael addition of ß-keto esters and α,ß-unsaturated aldehydes in the presence of primary amines to give functionalized 1,4-dihydropyridines enantioselectively. With the use of the different Brønsted acids such as DFA and HBF(4) with the same bifunctional thiourea, both enantiomers of 4-substituted 1,4-dihydropyridine were synthesized from the same starting materials.
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36
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Huang K, Zhang X, Emge TJ, Hou G, Cao B, Zhang X. Design and synthesis of a novel three-hindered quadrant bisphosphine ligand and its application in asymmetric hydrogenation. Chem Commun (Camb) 2010; 46:8555-7. [PMID: 20944852 DOI: 10.1039/c0cc02620d] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel three hindered quadrant bisphosphine ligand has been synthesized. The ligand shows excellent enantioselectivities and reactivities for rhodium-catalyzed hydrogenations of various functionalized olefins.
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Affiliation(s)
- Kexuan Huang
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, Piscataway, NJ 08854, USA
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37
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Hou G, Li W, Ma M, Zhang X, Zhang X. Highly Efficient Iridium-Catalyzed Asymmetric Hydrogenation of Unprotected β-Enamine Esters. J Am Chem Soc 2010; 132:12844-6. [DOI: 10.1021/ja105674y] [Citation(s) in RCA: 65] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Guohua Hou
- Department of Chemistry and Chemical Biology & Pharmaceutical Chemistry, Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854
| | - Wei Li
- Department of Chemistry and Chemical Biology & Pharmaceutical Chemistry, Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854
| | - Miaofeng Ma
- Department of Chemistry and Chemical Biology & Pharmaceutical Chemistry, Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854
| | - Xiaowei Zhang
- Department of Chemistry and Chemical Biology & Pharmaceutical Chemistry, Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854
| | - Xumu Zhang
- Department of Chemistry and Chemical Biology & Pharmaceutical Chemistry, Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854
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38
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Zhang X, Huang K, Hou G, Cao B, Zhang X. Electron-Donating and Rigid P-Stereogenic Bisphospholane Ligands for Highly Enantioselective Rhodium-Catalyzed Asymmetric Hydrogenations. Angew Chem Int Ed Engl 2010; 49:6421-4. [DOI: 10.1002/anie.201002990] [Citation(s) in RCA: 96] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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39
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Zhang X, Huang K, Hou G, Cao B, Zhang X. Electron-Donating and Rigid P-Stereogenic Bisphospholane Ligands for Highly Enantioselective Rhodium-Catalyzed Asymmetric Hydrogenations. Angew Chem Int Ed Engl 2010. [DOI: 10.1002/ange.201002990] [Citation(s) in RCA: 17] [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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40
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Busscher GF, Lefort L, Cremers JG, Mottinelli M, Wiertz RW, Lange BD, Okamura Y, Yusa Y, Matsumura K, Shimizu H, de Vries JG, de Vries AH. Efficient preparation of an N-aryl β-amino acid via asymmetric hydrogenation and direct asymmetric reductive amination en route to Ezetimibe. ACTA ACUST UNITED AC 2010. [DOI: 10.1016/j.tetasy.2010.04.013] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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41
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Hebbache H, Jerphagnon T, Hank Z, Bruneau C, Renaud JL. Hydrogenation of β-N-substituted enaminoesters in the presence of ruthenium catalysts. J Organomet Chem 2010. [DOI: 10.1016/j.jorganchem.2010.01.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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42
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Weiner B, Szymański W, Janssen DB, Minnaard AJ, Feringa BL. Recent advances in the catalytic asymmetric synthesis of β-amino acids. Chem Soc Rev 2010; 39:1656-91. [DOI: 10.1039/b919599h] [Citation(s) in RCA: 374] [Impact Index Per Article: 26.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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43
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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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44
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Hoang CT, Bouillère F, Johannesen S, Zulauf A, Panel C, Pouilhès A, Gori D, Alezra V, Kouklovsky C. Amino Acid Homologation by the Blaise Reaction: A New Entry into Nitrogen Heterocycles. J Org Chem 2009; 74:4177-87. [DOI: 10.1021/jo900324d] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Cam Thuy Hoang
- Laboratoire de Chimie des Procédés et Substances Naturelles, Institut de Chimie Moléculaire et des Matériaux d’Orsay (UMR CNRS no. 8182), Bâtiment 410, Université Paris-Sud, F-91405 Orsay, France
| | - Francelin Bouillère
- Laboratoire de Chimie des Procédés et Substances Naturelles, Institut de Chimie Moléculaire et des Matériaux d’Orsay (UMR CNRS no. 8182), Bâtiment 410, Université Paris-Sud, F-91405 Orsay, France
| | - Sine Johannesen
- Laboratoire de Chimie des Procédés et Substances Naturelles, Institut de Chimie Moléculaire et des Matériaux d’Orsay (UMR CNRS no. 8182), Bâtiment 410, Université Paris-Sud, F-91405 Orsay, France
| | - Anaïs Zulauf
- Laboratoire de Chimie des Procédés et Substances Naturelles, Institut de Chimie Moléculaire et des Matériaux d’Orsay (UMR CNRS no. 8182), Bâtiment 410, Université Paris-Sud, F-91405 Orsay, France
| | - Cécilia Panel
- Laboratoire de Chimie des Procédés et Substances Naturelles, Institut de Chimie Moléculaire et des Matériaux d’Orsay (UMR CNRS no. 8182), Bâtiment 410, Université Paris-Sud, F-91405 Orsay, France
| | - Annie Pouilhès
- Laboratoire de Chimie des Procédés et Substances Naturelles, Institut de Chimie Moléculaire et des Matériaux d’Orsay (UMR CNRS no. 8182), Bâtiment 410, Université Paris-Sud, F-91405 Orsay, France
| | - Didier Gori
- Laboratoire de Chimie des Procédés et Substances Naturelles, Institut de Chimie Moléculaire et des Matériaux d’Orsay (UMR CNRS no. 8182), Bâtiment 410, Université Paris-Sud, F-91405 Orsay, France
| | - Valérie Alezra
- Laboratoire de Chimie des Procédés et Substances Naturelles, Institut de Chimie Moléculaire et des Matériaux d’Orsay (UMR CNRS no. 8182), Bâtiment 410, Université Paris-Sud, F-91405 Orsay, France
| | - Cyrille Kouklovsky
- Laboratoire de Chimie des Procédés et Substances Naturelles, Institut de Chimie Moléculaire et des Matériaux d’Orsay (UMR CNRS no. 8182), Bâtiment 410, Université Paris-Sud, F-91405 Orsay, France
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45
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Wang XB, Wang DW, Lu SM, Yu CB, Zhou YG. Highly enantioselective Ir-catalyzed hydrogenation of exocyclic enamines. ACTA ACUST UNITED AC 2009. [DOI: 10.1016/j.tetasy.2009.03.037] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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46
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Zhong YL, Krska SW, Zhou H, Reamer RA, Lee J, Sun Y, Askin D. Catalytic asymmetric synthesis of an HIV integrase inhibitor. Org Lett 2009; 11:369-72. [PMID: 19099496 DOI: 10.1021/ol802604v] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
An efficient synthesis of HIV integrase inhibitor (S)-(-)-1 via a unique asymmetric hydrogenation of a mixture of imines/enamine 5a-5b/5c is described. Hydrogenation of the imines/enamine by a Rh(I)-Josiphos complex afforded 6 in 90% yield and 90% ee. Amide formation completed the synthesis of 1 in 58% overall yield from 2, which is readily available from 3,4-dihydro-2H-pyran in a seven-step sequence. A deuterium labeling study suggests the asymmetric hydrogenation proceeds predominantly via the enamine tautomer.
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Affiliation(s)
- Yong-Li Zhong
- Department of Process Research, Merck Research Laboratories, P.O. Box 2000, Rahway, New Jersey 07065, USA
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47
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Hou GH, Xie JH, Yan PC, Zhou QL. Iridium-Catalyzed Asymmetric Hydrogenation of Cyclic Enamines. J Am Chem Soc 2009; 131:1366-7. [DOI: 10.1021/ja808358r] [Citation(s) in RCA: 140] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Guo-Hua Hou
- State Key Laboratory and Institute of Elemento-organic Chemistry, Nankai University, Tianjin 300071, China
| | - Jian-Hua Xie
- State Key Laboratory and Institute of Elemento-organic Chemistry, Nankai University, Tianjin 300071, China
| | - Pu-Cha Yan
- State Key Laboratory and Institute of Elemento-organic Chemistry, Nankai University, Tianjin 300071, China
| | - Qi-Lin Zhou
- State Key Laboratory and Institute of Elemento-organic Chemistry, Nankai University, Tianjin 300071, China
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48
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Cheruku P, Church TL, Trifonova A, Wartmann T, Andersson PG. Access to chiral tertiary amines via the iridium-catalyzed asymmetric hydrogenation of enamines. Tetrahedron Lett 2008. [DOI: 10.1016/j.tetlet.2008.10.035] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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49
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Zhang R, Zhang D, Guo Y, Zhou G, Jiang Z, Dong D. Vilsmeier Reaction of Enaminones: Efficient Synthesis of Halogenated Pyridin-2(1H)-ones. J Org Chem 2008; 73:9504-7. [DOI: 10.1021/jo801959j] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Rui Zhang
- Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
| | - Dingyuan Zhang
- Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
| | - Yongli Guo
- Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
| | - Guangyuan Zhou
- Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
| | - Zijiang Jiang
- Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
| | - Dewen Dong
- Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
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50
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Zheng HJ, Chen WB, Wu ZJ, Deng JG, Lin WQ, Yuan WC, Zhang XM. Highly Enantioselective Synthesis of β-Amino Acid Derivatives by the Lewis Base Catalyzed Hydrosilylation of β-Enamino Esters. Chemistry 2008; 14:9864-7. [PMID: 18830976 DOI: 10.1002/chem.200801582] [Citation(s) in RCA: 85] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Hong-Jie Zheng
- Key Laboratory for Asymmetric Synthesis and Chiraltechnology of Sichuan Province, Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu, China
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