1
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Patel MA, Kapdi AR. Ubiquitous Role of Phosphine-Based Water-Soluble Ligand in Promoting Catalytic Reactions in Water. CHEM REC 2024; 24:e202400057. [PMID: 39162777 DOI: 10.1002/tcr.202400057] [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: 03/22/2024] [Revised: 06/26/2024] [Indexed: 08/21/2024]
Abstract
Catalysis has been at the forefront of the developments that has revolutionised synthesis and provided the impetus in the discovery of platform technologies for efficient C-C or C-X bond formation. Current environmental situation however, demands a change in strategy with catalysis being promoted more in solvents that are benign (Water) and for that the development of hydrophilic ligands (especially phosphines) is a necessity which could promote catalytic reactions in water, allow recyclability of the catalytic solutions and make it possible to isolate products using column-free techniques that involve lesser usage of hazardous organic solvents. In this review, we therefore critically analyse such catalytic processes providing examples that do follow the above-mentioned parameter.
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Affiliation(s)
- Manisha A Patel
- Department of Chemistry, Institute of Chemical Technology, Nathalal Parekh road, Matunga, Mumbai, 400019, India
| | - Anant R Kapdi
- Department of Chemistry, Institute of Chemical Technology, Nathalal Parekh road, Matunga, Mumbai, 400019, India
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2
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Shada ADR, Mangunuru HPR, Terrab L, Tenneti S, Kalikinidi NR, Naini SR, Gajula P, Crull EB, Janganati V, Kovvuri R, Natarajan V, Lee D, Yin J, Samankumara L, Mahar R, Zhang X, Chen A, Hewa-Rahinduwage CC, Wang Z, Mamunooru M, Rana J, Wannere CS, Armstrong JD, Williamson RT, Sirasani G, Qu B, Senanayake CH. Design and Discovery of Water-Soluble Benzooxaphosphole-Based Ligands for Hindered Suzuki-Miyaura Coupling Reactions with Low Catalyst Load. Org Lett 2024; 26:2751-2757. [PMID: 37486800 DOI: 10.1021/acs.orglett.3c01663] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/26/2023]
Abstract
We report a new class of highly effective, benzooxaphosphole-based, water-soluble ligands in the application of Suzuki-Miyaura cross-coupling reactions for sterically hindered substrates in aqueous media. The catalytic activities of the coupling reactions were greatly enhanced by the addition of catalytic amounts of organic phase transfer reagents, such as tetraglyme and tetrabutylammonium bromide. The optimized general protocol can be conducted with a low catalyst load, thereby providing a practical solution for these reactions. The viability of this new Suzuki-Miyaura protocol was demonstrated with various substrates to generate important building blocks, including heterocycles, for the synthesis of biologically active compounds.
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Affiliation(s)
- Arun D R Shada
- TCG GreenChem, Inc., 701 Charles Ewing Blvd, Ewing, New Jersey 08628, United States
| | - Hari P R Mangunuru
- TCG GreenChem, Inc., 701 Charles Ewing Blvd, Ewing, New Jersey 08628, United States
| | - Leila Terrab
- TCG GreenChem, Inc., 701 Charles Ewing Blvd, Ewing, New Jersey 08628, United States
| | - Srinivasarao Tenneti
- TCG GreenChem, Inc., 701 Charles Ewing Blvd, Ewing, New Jersey 08628, United States
| | | | - Santhosh Reddy Naini
- TCG GreenChem, Inc., 701 Charles Ewing Blvd, Ewing, New Jersey 08628, United States
| | - Praveen Gajula
- TCG GreenChem, Inc., 701 Charles Ewing Blvd, Ewing, New Jersey 08628, United States
| | - Emily B Crull
- University of North Carolina Wilmington, 5600 Marvin K. Moss Lane, Wilmington, North Carolina 28409, United States
| | - Venumadhav Janganati
- TCG GreenChem, Inc., 701 Charles Ewing Blvd, Ewing, New Jersey 08628, United States
| | - Raghavendra Kovvuri
- TCG GreenChem, Inc., 701 Charles Ewing Blvd, Ewing, New Jersey 08628, United States
| | - Vasudevan Natarajan
- TCG GreenChem, Inc., 701 Charles Ewing Blvd, Ewing, New Jersey 08628, United States
| | - Daniel Lee
- TCG GreenChem, Inc., 701 Charles Ewing Blvd, Ewing, New Jersey 08628, United States
| | - Jinya Yin
- TCG GreenChem, Inc., 701 Charles Ewing Blvd, Ewing, New Jersey 08628, United States
| | - Lalith Samankumara
- TCG GreenChem, Inc., 701 Charles Ewing Blvd, Ewing, New Jersey 08628, United States
| | - Rohit Mahar
- TCG GreenChem, Inc., 701 Charles Ewing Blvd, Ewing, New Jersey 08628, United States
| | - Xueyi Zhang
- TCG GreenChem, Inc., 701 Charles Ewing Blvd, Ewing, New Jersey 08628, United States
| | - Anji Chen
- TCG GreenChem, Inc., 701 Charles Ewing Blvd, Ewing, New Jersey 08628, United States
| | | | - Zhirui Wang
- TCG GreenChem, Inc., 701 Charles Ewing Blvd, Ewing, New Jersey 08628, United States
| | - Manasa Mamunooru
- TCG GreenChem, Inc., 701 Charles Ewing Blvd, Ewing, New Jersey 08628, United States
| | - Jagruti Rana
- TCG GreenChem, Inc., 701 Charles Ewing Blvd, Ewing, New Jersey 08628, United States
| | - Chaitanya S Wannere
- TCG GreenChem, Inc., 701 Charles Ewing Blvd, Ewing, New Jersey 08628, United States
| | - Joseph D Armstrong
- TCG GreenChem, Inc., 701 Charles Ewing Blvd, Ewing, New Jersey 08628, United States
| | - R Thomas Williamson
- University of North Carolina Wilmington, 5600 Marvin K. Moss Lane, Wilmington, North Carolina 28409, United States
| | - Gopal Sirasani
- TCG GreenChem, Inc., 701 Charles Ewing Blvd, Ewing, New Jersey 08628, United States
| | - Bo Qu
- TCG GreenChem, Inc., 701 Charles Ewing Blvd, Ewing, New Jersey 08628, United States
| | - Chris H Senanayake
- TCG GreenChem, Inc., 701 Charles Ewing Blvd, Ewing, New Jersey 08628, United States
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3
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Jouffroy M, Neufeld K. Synthesis of Atropisomeric Biaryls via Chiral Suzuki–Miyaura/Enzymatic Kinetic Resolution. ACS Catal 2022. [DOI: 10.1021/acscatal.2c02090] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Matthieu Jouffroy
- Chemical Process R&D, Discovery Process Research, Janssen Pharmarceutcia N.V., Turnhoutseweg 30, B-2340 Beerse, Belgium
| | - Katharina Neufeld
- Chemical Process R&D, High Throughput Experimentation, Janssen Pharmarceutcia N.V., Turnhoutseweg 30, B-2340 Beerse, Belgium
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4
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Sun G, Deng Z, Luo Z, Wang Z, Zhang J. Organocatalytic Asymmetric Arylation of p-Quinone Phosphonates: A Green Access to Biaryl Monophosphorus Ligands. Org Lett 2021; 23:7630-7634. [PMID: 34549966 DOI: 10.1021/acs.orglett.1c02852] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Herein, we report a highly efficient organocatalytic asymmetric synthesis of axially chiral biaryl phosphonates with p-quinone phosphonates and 2-naphthols via CPA-catalyzed asymmetric arylations. A series of chiral biaryl monophosphonates were obtained in excellent yields and enantioselectivities (up to 99% yield and 95% ee). This reaction could be operated at a gram scale with a low catalyst loading (0.5 mol %). Remarkably, our approach provides a green and ready access to chiral biaryl monophosphorus ligands. Compound 4ca was successfully converted to novel chiral biaryl monophosphorus ligands 7a, 7b, and 8 with high enantioselectivities in three steps.
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Affiliation(s)
- Guodong Sun
- State Key laboratory of Respiratory Diseases, Guangzhou Institutes of Biomedicine and Heath, Chinese Academy of Sciences, 190 Kaiyuan Road, Guangzhou, 510530, P. R. China.,University of Chinese Academy of Sciences, No. 19 Yuquan Road, Beijing, 100049, P. R. China
| | - Zhuofei Deng
- State Key Laboratory of Anti-Infective Drug Development, Sunshine Lake Pharma Co., Ltd., Dongguan 523871, P. R. China
| | - Zhonghua Luo
- State Key Laboratory of Anti-Infective Drug Development, Sunshine Lake Pharma Co., Ltd., Dongguan 523871, P. R. China
| | - Zhongqing Wang
- State Key Laboratory of Anti-Infective Drug Development, Sunshine Lake Pharma Co., Ltd., Dongguan 523871, P. R. China
| | - Jiancun Zhang
- State Key laboratory of Respiratory Diseases, Guangzhou Institutes of Biomedicine and Heath, Chinese Academy of Sciences, 190 Kaiyuan Road, Guangzhou, 510530, P. R. China
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5
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Laffoon JD, Chan VS, Fickes MG, Kotecki B, Ickes AR, Henle J, Napolitano JG, Franczyk TS, Dunn TB, Barnes DM, Haight AR, Henry RF, Shekhar S. Pd-Catalyzed Cross-Coupling Reactions Promoted by Biaryl Phosphorinane Ligands. ACS Catal 2019. [DOI: 10.1021/acscatal.9b03012] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Joshua D. Laffoon
- Process Research and Development, AbbVie Inc., 1 North Waukegan Road, North Chicago, Illinois 60064, United States
| | - Vincent S. Chan
- Process Research and Development, AbbVie Inc., 1 North Waukegan Road, North Chicago, Illinois 60064, United States
| | - Michael G. Fickes
- Process Research and Development, AbbVie Inc., 1 North Waukegan Road, North Chicago, Illinois 60064, United States
| | - Brian Kotecki
- Process Research and Development, AbbVie Inc., 1 North Waukegan Road, North Chicago, Illinois 60064, United States
| | - Andrew R. Ickes
- Process Research and Development, AbbVie Inc., 1 North Waukegan Road, North Chicago, Illinois 60064, United States
| | - Jeremy Henle
- Process Research and Development, AbbVie Inc., 1 North Waukegan Road, North Chicago, Illinois 60064, United States
| | - José G. Napolitano
- Discovery Chemistry and Technology, AbbVie Inc., 1 North Waukegan Road, North Chicago, Illinois 60064, United States
| | - Thaddeus S. Franczyk
- Process Research and Development, AbbVie Inc., 1 North Waukegan Road, North Chicago, Illinois 60064, United States
| | - Travis B. Dunn
- Process Research and Development, AbbVie Inc., 1 North Waukegan Road, North Chicago, Illinois 60064, United States
| | - David M. Barnes
- Process Research and Development, AbbVie Inc., 1 North Waukegan Road, North Chicago, Illinois 60064, United States
| | - Anthony R. Haight
- Process Research and Development, AbbVie Inc., 1 North Waukegan Road, North Chicago, Illinois 60064, United States
| | - Rodger F. Henry
- Discovery Chemistry and Technology, AbbVie Inc., 1 North Waukegan Road, North Chicago, Illinois 60064, United States
| | - Shashank Shekhar
- Process Research and Development, AbbVie Inc., 1 North Waukegan Road, North Chicago, Illinois 60064, United States
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6
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Patel ND, Sieber JD, Tcyrulnikov S, Simmons BJ, Rivalti D, Duvvuri K, Zhang Y, Gao DA, Fandrick KR, Haddad N, Lao KS, Mangunuru HPR, Biswas S, Qu B, Grinberg N, Pennino S, Lee H, Song JJ, Gupton BF, Garg NK, Kozlowski MC, Senanayake CH. Computationally Assisted Mechanistic Investigation and Development of Pd-Catalyzed Asymmetric Suzuki-Miyaura and Negishi Cross-Coupling Reactions for Tetra- ortho-Substituted Biaryl Synthesis. ACS Catal 2018; 8:10190-10209. [PMID: 30450265 DOI: 10.1021/acscatal.8b02509] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Metal-catalyzed cross-coupling reactions are extensively employed in both academia and industry for the synthesis of biaryl derivatives for applications to both medicine and material science. Application of these methods to prepare tetra-ortho-substituted biaryls leads to chiral atropisomeric products that introduces the opportunity to use catalyst-control to develop asymmetric cross-coupling procedures to access these important compounds. Asymmetric Pd-catalyzed Suzuki-Miyaura and Negishi cross-coupling reactions to form tetra-ortho-substituted biaryls were studied employing a collection of P-chiral dihydrobenzooxaphosphole (BOP) and dihydrobenzoazaphosphole (BAP) ligands. Enantioselectivities of up to 95:5 and 85:15 er were identified for the Suzuki-Miyaura and Negishi cross-coupling reactions, respectively. Unique ligands for the Suzuki-Miyaura reaction vs the Negishi reaction were identified. A computational study on these Suzuki-Miyaura and Negishi cross-coupling reactions enabled an understanding in the differences between the enantiodiscriminating events between these two cross-coupling reactions. These results support that enantioselectivity in the Negishi reaction results from the reductive elimination step, whereas all steps in the Suzuki-Miyaura catalytic cycle contribute to the overall enantioselection with transmetalation and reductive elimination providing the most contribution to the observed selectivities.
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Affiliation(s)
- Nitinchandra D. Patel
- Chemical Development, Boehringer Ingelheim Pharmaceuticals, Inc, 900 Ridgebury Road, Ridgefield, Connecticut 06877, United States
| | - Joshua D. Sieber
- Chemical Development, Boehringer Ingelheim Pharmaceuticals, Inc, 900 Ridgebury Road, Ridgefield, Connecticut 06877, United States
- Department of Chemistry, Virginia Commonwealth University, 1001 West Main Street, Richmond, Virginia 23284-3028, United States
| | - Sergei Tcyrulnikov
- Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - Bryan J. Simmons
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, United States
| | - Daniel Rivalti
- Chemical Development, Boehringer Ingelheim Pharmaceuticals, Inc, 900 Ridgebury Road, Ridgefield, Connecticut 06877, United States
- Department of Chemical and Life Science Engineering, Virginia Commonwealth University, 601 Main Street, P.O. Box 843028, Richmond, Virginia 23284-3028, United States
| | - Krishnaja Duvvuri
- Department of Chemistry and Biochemistry, The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210, United States
| | - Yongda Zhang
- Chemical Development, Boehringer Ingelheim Pharmaceuticals, Inc, 900 Ridgebury Road, Ridgefield, Connecticut 06877, United States
| | - Donghong A. Gao
- Chemical Development, Boehringer Ingelheim Pharmaceuticals, Inc, 900 Ridgebury Road, Ridgefield, Connecticut 06877, United States
| | - Keith R. Fandrick
- Chemical Development, Boehringer Ingelheim Pharmaceuticals, Inc, 900 Ridgebury Road, Ridgefield, Connecticut 06877, United States
| | - Nizar Haddad
- Chemical Development, Boehringer Ingelheim Pharmaceuticals, Inc, 900 Ridgebury Road, Ridgefield, Connecticut 06877, United States
| | - Kendricks So Lao
- Department of Chemistry, University of Connecticut, 55 North Eagleville Road, Storrs, Connecticut 06269, United States
| | - Hari P. R. Mangunuru
- Chemical Development, Boehringer Ingelheim Pharmaceuticals, Inc, 900 Ridgebury Road, Ridgefield, Connecticut 06877, United States
- Department of Chemical and Life Science Engineering, Virginia Commonwealth University, 601 Main Street, P.O. Box 843028, Richmond, Virginia 23284-3028, United States
| | - Soumik Biswas
- Chemical Development, Boehringer Ingelheim Pharmaceuticals, Inc, 900 Ridgebury Road, Ridgefield, Connecticut 06877, United States
| | - Bo Qu
- Chemical Development, Boehringer Ingelheim Pharmaceuticals, Inc, 900 Ridgebury Road, Ridgefield, Connecticut 06877, United States
| | - Nelu Grinberg
- Chemical Development, Boehringer Ingelheim Pharmaceuticals, Inc, 900 Ridgebury Road, Ridgefield, Connecticut 06877, United States
| | - Scott Pennino
- Material and Analytical Sciences, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road, Ridgefield, Connecticut 06877, United States
| | - Heewon Lee
- Chemical Development, Boehringer Ingelheim Pharmaceuticals, Inc, 900 Ridgebury Road, Ridgefield, Connecticut 06877, United States
| | - Jinhua J. Song
- Chemical Development, Boehringer Ingelheim Pharmaceuticals, Inc, 900 Ridgebury Road, Ridgefield, Connecticut 06877, United States
| | - B. Frank Gupton
- Department of Chemical and Life Science Engineering, Virginia Commonwealth University, 601 Main Street, P.O. Box 843028, Richmond, Virginia 23284-3028, United States
| | - Neil K. Garg
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, United States
| | - Marisa C. Kozlowski
- Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - Chris H. Senanayake
- Chemical Development, Boehringer Ingelheim Pharmaceuticals, Inc, 900 Ridgebury Road, Ridgefield, Connecticut 06877, United States
- Astatech BioPharmaceutical Corporation, 488 Kelin West Road, Wengjiang, Chendu, Sichuan 611130, People’s Republic of China
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7
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Maekawa Y, Kuwabara K, Sugiyama A, Iwata K, Maruyama T, Murai T. Synthesis of P-Stereogenic Phosphinates via an Axis-to-Center Chirality Transfer by the Reaction of Phosphonates Having a Binaphthyloxy Group with Grignard Reagents. CHEM LETT 2017. [DOI: 10.1246/cl.170395] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Yuuki Maekawa
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, Yanagido, Gifu 501-1193
| | - Kazuma Kuwabara
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, Yanagido, Gifu 501-1193
| | - Aya Sugiyama
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, Yanagido, Gifu 501-1193
| | - Kouji Iwata
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, Yanagido, Gifu 501-1193
| | - Toshifumi Maruyama
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, Yanagido, Gifu 501-1193
| | - Toshiaki Murai
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, Yanagido, Gifu 501-1193
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8
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Li G, Wang XJ, Zhang Y, Tan Z, DeCroos P, Lorenz JC, Wei X, Grinberg N, Yee NK, Senanayake CH. Synthesis of P-Chiral Dihydrobenzooxaphosphole Core for BI Ligands in Asymmetric Transformations. J Org Chem 2017; 82:5456-5460. [DOI: 10.1021/acs.joc.7b00491] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Guisheng Li
- Chemical Development, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road, Ridgefield, Connecticut 06877, United States
| | - Xiao-jun Wang
- Chemical Development, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road, Ridgefield, Connecticut 06877, United States
| | - Yongda Zhang
- Chemical Development, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road, Ridgefield, Connecticut 06877, United States
| | - Zhulin Tan
- Chemical Development, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road, Ridgefield, Connecticut 06877, United States
| | - Philomen DeCroos
- Chemical Development, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road, Ridgefield, Connecticut 06877, United States
| | - Jon C. Lorenz
- Chemical Development, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road, Ridgefield, Connecticut 06877, United States
| | - Xudong Wei
- Chemical Development, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road, Ridgefield, Connecticut 06877, United States
| | - Nelu Grinberg
- Chemical Development, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road, Ridgefield, Connecticut 06877, United States
| | - Nathan K. Yee
- Chemical Development, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road, Ridgefield, Connecticut 06877, United States
| | - Chris H. Senanayake
- Chemical Development, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road, Ridgefield, Connecticut 06877, United States
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9
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Dutartre M, Bayardon J, Jugé S. Applications and stereoselective syntheses of P-chirogenic phosphorus compounds. Chem Soc Rev 2016; 45:5771-5794. [DOI: 10.1039/c6cs00031b] [Citation(s) in RCA: 233] [Impact Index Per Article: 29.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
This review reports the best stereoselective or asymmetric syntheses, the most efficient P*-building blocks and functionalisation of P-chirogenic compounds, in the light of chiral phosphorus compound applications.
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Affiliation(s)
- Mathieu Dutartre
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB-StéréochIM)
- UMR CNRS 6302
- 21078 Dijon Cedex
- France
| | - Jérôme Bayardon
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB-StéréochIM)
- UMR CNRS 6302
- 21078 Dijon Cedex
- France
| | - Sylvain Jugé
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB-StéréochIM)
- UMR CNRS 6302
- 21078 Dijon Cedex
- France
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10
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Sieber JD, Rivalti D, Herbage MA, Masters JT, Fandrick KR, Fandrick DR, Haddad N, Lee H, Yee NK, Gupton BF, Senanayake CH. Rh-catalysed asymmetric conjugate addition of boronic acids to nitroalkenes employing a P-chiral P,π-hybrid ligand. Org Chem Front 2016. [DOI: 10.1039/c6qo00311g] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A P-chiral P,π-hybrid ligand was applied to the asymmetric conjugate addition of aryl boronic acids to β-substituted nitroalkenes.
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