1
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Jha RK, Rout S, Joshi H, Das A, Singh VK. An enantioselective sulfa-Michael addition of alkyl thiols to α,β-unsaturated 2-acyl imidazoles catalyzed by a bifunctional squaramide. Tetrahedron 2020. [DOI: 10.1016/j.tet.2019.130800] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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2
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Lauzon S, Li M, Keipour H, Ollevier T. Fe(OTf)2
-Catalyzed Thia
-Michael Addition Reaction: A Green Synthetic Approach to β-Thioethers. European J Org Chem 2018. [DOI: 10.1002/ejoc.201800780] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Samuel Lauzon
- Département de chimie; Université Laval; 1045 avenue de la Médecine G1V 0A6 Québec QC Canada
| | - Mao Li
- Département de chimie; Université Laval; 1045 avenue de la Médecine G1V 0A6 Québec QC Canada
| | - Hoda Keipour
- Département de chimie; Université Laval; 1045 avenue de la Médecine G1V 0A6 Québec QC Canada
| | - Thierry Ollevier
- Département de chimie; Université Laval; 1045 avenue de la Médecine G1V 0A6 Québec QC Canada
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3
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Gu Z, Xie JJ, Jiang GF, Zhou YG. Catalytic Asymmetric Conjugate Addition of Tritylthiol to Azadienes with a Bifunctional Organocatalyst. ASIAN J ORG CHEM 2018. [DOI: 10.1002/ajoc.201800299] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Zheng Gu
- College of Chemistry and Chemical Engineering; Hunan University; Changsha 410082 P.R. China
| | - Jiao-Jiao Xie
- College of Chemistry and Chemical Engineering; Hunan University; Changsha 410082 P.R. China
| | - Guo-Fang Jiang
- College of Chemistry and Chemical Engineering; Hunan University; Changsha 410082 P.R. China
| | - Yong-Gui Zhou
- Dalian Institute of Chemical Physics; Chinese Academy of Sciences; Dalian 116023 P.R. China
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4
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Meninno S, Naddeo S, Varricchio L, Capobianco A, Lattanzi A. Stereoselective organocatalytic sulfa-Michael reactions of aryl substituted α,β-unsaturated N-acyl pyrazoles. Org Chem Front 2018. [DOI: 10.1039/c8qo00357b] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A variety of functionalised sulfides has been obtained in good to high stereoselectivity via sulfa-Michael reaction of α,β-unsaturated N-acyl pyrazoles with thiols or thioacetic acid using readily available organocatalysts and working under mild conditions.
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Affiliation(s)
- Sara Meninno
- Dipartimento di Chimica e Biologia “A. Zambelli”
- Universita’ di Salerno
- Fisciano
- Italy
| | - Simone Naddeo
- Dipartimento di Chimica e Biologia “A. Zambelli”
- Universita’ di Salerno
- Fisciano
- Italy
| | - Luca Varricchio
- Dipartimento di Chimica e Biologia “A. Zambelli”
- Universita’ di Salerno
- Fisciano
- Italy
| | - Amedeo Capobianco
- Dipartimento di Chimica e Biologia “A. Zambelli”
- Universita’ di Salerno
- Fisciano
- Italy
| | - Alessandra Lattanzi
- Dipartimento di Chimica e Biologia “A. Zambelli”
- Universita’ di Salerno
- Fisciano
- Italy
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5
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Lauzon S, Keipour H, Gandon V, Ollevier T. Asymmetric Fe II-Catalyzed Thia-Michael Addition Reaction to α,β-Unsaturated Oxazolidin-2-one Derivatives. Org Lett 2017; 19:6324-6327. [PMID: 29152981 DOI: 10.1021/acs.orglett.7b03118] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
A highly enantioselective FeII-catalyzed thia-Michael addition to α,β-unsaturated carbonyl derivatives was developed. The scope of the reaction was demonstrated with a selection of aromatic, heterocyclic and aliphatic thiols, and various Michael acceptors. The corresponding β-thioethers were obtained in good to excellent yields (up to 98%) and moderate to excellent enantioselectivities (up to 96:4 er). Unusual hepta-coordination of the metal and chelation to α,β-unsaturated oxazolidin-2-one derivatives allowed the construction of a coherent model rationalizing the enantioselective event. DFT calculations support the proposed model for observed stereoselectivities.
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Affiliation(s)
- Samuel Lauzon
- Département de chimie, Université Laval , 1045 avenue de la Médecine, Québec, QC G1V 0A6, Canada
| | - Hoda Keipour
- Département de chimie, Université Laval , 1045 avenue de la Médecine, Québec, QC G1V 0A6, Canada
| | - Vincent Gandon
- Institut de Chimie Moléculaire et des Matériaux d'Orsay, CNRS UMR 8182, Univ. Paris-Sud, Université Paris-Saclay , Orsay 91405 Cedex, France.,Institut de Chimie des Substances Naturelles, CNRS UPR 2301, Univ. Paris-Sud, Université Paris-Saclay , 1 av. de la Terrasse, 91198 Gif-sur-Yvette, France
| | - Thierry Ollevier
- Département de chimie, Université Laval , 1045 avenue de la Médecine, Québec, QC G1V 0A6, Canada
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6
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Tukhvatshin RS, Kucherenko AS, Nelyubina YV, Zlotin SG. Tertiary Amine-Derived Ionic Liquid-Supported Squaramide as a Recyclable Organocatalyst for Noncovalent “On Water” Catalysis. ACS Catal 2017. [DOI: 10.1021/acscatal.7b00562] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Rinat S. Tukhvatshin
- N.D. Zelinsky Institute
of Organic Chemistry, Russian Academy of Sciences, 47, Leninsky
Prospect, 119991 Moscow, Russia
| | - Alexander S. Kucherenko
- N.D. Zelinsky Institute
of Organic Chemistry, Russian Academy of Sciences, 47, Leninsky
Prospect, 119991 Moscow, Russia
| | - Yulia V. Nelyubina
- A.N. Nesmeyanov Institute
of Organoelement Compounds, Russian Academy of Sciences, 28, Vavilova
Street, 119991 Moscow, Russia
| | - Sergei G. Zlotin
- N.D. Zelinsky Institute
of Organic Chemistry, Russian Academy of Sciences, 47, Leninsky
Prospect, 119991 Moscow, Russia
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7
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Yang J, Farley AJM, Dixon DJ. Enantioselective bifunctional iminophosphorane catalyzed sulfa-Michael addition of alkyl thiols to unactivated β-substituted-α,β-unsaturated esters. Chem Sci 2016; 8:606-610. [PMID: 28451207 PMCID: PMC5358540 DOI: 10.1039/c6sc02878k] [Citation(s) in RCA: 69] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2016] [Accepted: 09/02/2016] [Indexed: 11/29/2022] Open
Abstract
The highly enantioselective sulfa-Michael addition of alkyl thiols to unactivated β-substituted-α,β-unsaturated esters catalyzed by a bifunctional iminophosphorane (BIMP) organocatalyst is described.
The highly enantioselective sulfa-Michael addition of alkyl thiols to unactivated β-substituted-α,β-unsaturated esters catalyzed by a bifunctional iminophosphorane (BIMP) organocatalyst is described. The low acidity of the alkyl thiol pro-nucleophiles is overcome by the high Brønsted basicity of the catalyst and the chiral scaffold/thiourea hydrogen-bond donor moiety provides the required enantiofacial discrimination in the addition step. The reaction is broad in scope with respect to the alkyl thiol and β-substituent of the α,β-unsaturated ester, affords sulfa-Michael adducts in excellent yields (up to >99%) and enantioselectivity (up to 97 : 3 er) and can operate down to 1 mol% catalyst loading.
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Affiliation(s)
- Jinchao Yang
- Department of Chemistry , Chemistry Research Laboratory , University of Oxford , 12 Mansfield Road , Oxford , UK .
| | - Alistair J M Farley
- Department of Chemistry , Chemistry Research Laboratory , University of Oxford , 12 Mansfield Road , Oxford , UK .
| | - Darren J Dixon
- Department of Chemistry , Chemistry Research Laboratory , University of Oxford , 12 Mansfield Road , Oxford , UK .
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8
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Ding X, Tian C, Hu Y, Gong L, Meggers E. Tuning the Basicity of a Metal-Templated Brønsted Base to Facilitate the Enantioselective Sulfa-Michael Addition of Aliphatic Thiols to α,β-UnsaturatedN-Acylpyrazoles. European J Org Chem 2016. [DOI: 10.1002/ejoc.201501494] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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9
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Rao KS, Ramesh P, Chowhan LR, Trivedi R. Asymmetric Mannich reaction: highly enantioselective synthesis of 3-amino-oxindoles via chiral squaramide based H-bond donor catalysis. RSC Adv 2016. [DOI: 10.1039/c6ra16877a] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A facile formation of 3-aminooxindole derivatives from the reaction of 1,3-diketones with isatin (N-Boc) via an asymmetric Mannich reaction catalyzed by chiral cinchona alkaloid based squaramide containing H-bond donor catalysts.
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Affiliation(s)
- Kadiyala Srinivasa Rao
- Inorganic and Physical Chemistry Division
- CSIR-Indian Institute of Chemical Technology
- Hyderabad-500007
- India
| | - Pambala Ramesh
- Inorganic and Physical Chemistry Division
- CSIR-Indian Institute of Chemical Technology
- Hyderabad-500007
- India
| | - L. Raju Chowhan
- School of Chemical Sciences
- Central University of Gujarat
- Gandhinagar-382030
- India
| | - Rajiv Trivedi
- Inorganic and Physical Chemistry Division
- CSIR-Indian Institute of Chemical Technology
- Hyderabad-500007
- India
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10
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Farley AJM, Sandford C, Dixon DJ. Bifunctional Iminophosphorane Catalyzed Enantioselective Sulfa-Michael Addition to Unactivated α-Substituted Acrylate Esters. J Am Chem Soc 2015; 137:15992-5. [DOI: 10.1021/jacs.5b10226] [Citation(s) in RCA: 95] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Alistair J. M. Farley
- The Department of Chemistry, Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford OX1 3TA, U.K
| | - Christopher Sandford
- The Department of Chemistry, Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford OX1 3TA, U.K
| | - Darren J. Dixon
- The Department of Chemistry, Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford OX1 3TA, U.K
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11
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Breman AC, Telderman SEM, van Santen RPM, Scott JI, van Maarseveen JH, Ingemann S, Hiemstra H. Cinchona Alkaloid Catalyzed Sulfa-Michael Addition Reactions Leading to Enantiopure β-Functionalized Cysteines. J Org Chem 2015; 80:10561-74. [DOI: 10.1021/acs.joc.5b01660] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Arjen C. Breman
- Van’t Hoff Institute
for Molecular Sciences, Faculty of Science, The University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands
| | - Suze E. M. Telderman
- Van’t Hoff Institute
for Molecular Sciences, Faculty of Science, The University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands
| | - Roy P. M. van Santen
- Van’t Hoff Institute
for Molecular Sciences, Faculty of Science, The University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands
| | - Jamie I. Scott
- Van’t Hoff Institute
for Molecular Sciences, Faculty of Science, The University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands
| | - Jan H. van Maarseveen
- Van’t Hoff Institute
for Molecular Sciences, Faculty of Science, The University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands
| | - Steen Ingemann
- Van’t Hoff Institute
for Molecular Sciences, Faculty of Science, The University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands
| | - Henk Hiemstra
- Van’t Hoff Institute
for Molecular Sciences, Faculty of Science, The University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands
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12
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Byrd KM. Diastereoselective and enantioselective conjugate addition reactions utilizing α,β-unsaturated amides and lactams. Beilstein J Org Chem 2015; 11:530-62. [PMID: 25977728 PMCID: PMC4419509 DOI: 10.3762/bjoc.11.60] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2015] [Accepted: 04/01/2015] [Indexed: 12/19/2022] Open
Abstract
The conjugate addition reaction has been a useful tool in the formation of carbon-carbon bonds. The utility of this reaction has been demonstrated in the synthesis of many natural products, materials, and pharmacological agents. In the last three decades, there has been a significant increase in the development of asymmetric variants of this reaction. Unfortunately, conjugate addition reactions using α,β-unsaturated amides and lactams remain underdeveloped due to their inherently low reactivity. This review highlights the work that has been done on both diastereoselective and enantioselective conjugate addition reactions utilizing α,β-unsaturated amides and lactams.
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Affiliation(s)
- Katherine M Byrd
- Department of Medicinal Chemistry, University of Kansas, 1251 Wescoe Hall Drive Lawrence, Kansas 66045-7582, USA
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13
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Wang R, Xu J. Enantioselective Sulfur-MichaelAddition of Thioacetic Acid to Nitroalkenes Catalyzed by Bifunctional Amine-Thiourea Catalysts. Helv Chim Acta 2014. [DOI: 10.1002/hlca.201400125] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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14
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Wang R, Liu J, Xu J. Organocatalytic Enantioselective Sulfur-Michael Addition of Thioacetic Acid to Arylmethylidenemalonates. Adv Synth Catal 2014. [DOI: 10.1002/adsc.201400664] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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15
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16
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Chen W, Jing Z, Chin KF, Qiao B, Zhao Y, Yan L, Tan CH, Jiang Z. Catalytic Asymmetric Conjugate Addition of Mercaptans to β-Substituted-β-Trifluoromethyl Oxazolidinone Enoates: Access to Chiral Trifluoromethylated Tertiary Thioethers and Thiols. Adv Synth Catal 2014. [DOI: 10.1002/adsc.201301027] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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17
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Qiao B, Liu X, Duan S, Yan L, Jiang Z. Highly Enantioselective Organocatalytic α-Sulfenylation of Azlactones. Org Lett 2014; 16:672-5. [PMID: 24432722 DOI: 10.1021/ol403303k] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Baokun Qiao
- Institute of Chemical Biology and ‡Key Laboratory of Natural Medicine
and Immuno-Engineering
of Henan Province, Henan University, Kaifeng, Henan, China, 475004
| | - Xinfei Liu
- Institute of Chemical Biology and ‡Key Laboratory of Natural Medicine
and Immuno-Engineering
of Henan Province, Henan University, Kaifeng, Henan, China, 475004
| | - Shaobo Duan
- Institute of Chemical Biology and ‡Key Laboratory of Natural Medicine
and Immuno-Engineering
of Henan Province, Henan University, Kaifeng, Henan, China, 475004
| | - Lin Yan
- Institute of Chemical Biology and ‡Key Laboratory of Natural Medicine
and Immuno-Engineering
of Henan Province, Henan University, Kaifeng, Henan, China, 475004
| | - Zhiyong Jiang
- Institute of Chemical Biology and ‡Key Laboratory of Natural Medicine
and Immuno-Engineering
of Henan Province, Henan University, Kaifeng, Henan, China, 475004
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18
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Zhao BL, Du DM. Chiral squaramide-catalysed one-pot enantioselective sulfa-Michael addition/thioesterification of thiols with α,β-unsaturated N-acylated succinimides. Org Biomol Chem 2014; 12:1585-94. [DOI: 10.1039/c3ob42137f] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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19
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Zhao BL, Du DM. Catalytic asymmetric conjugate addition of various α-mercaptoketones to α,β-unsaturated N-acylated oxazolidin-2-ones with bifunctional organocatalyst. RSC Adv 2014. [DOI: 10.1039/c4ra02400a] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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20
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Zhao MX, Ji FH, Zhao XL, Han ZZ, Shi M. Diastereo- and Enantioselective Michael Addition of 3-Substituted Oxindoles to Trifluoromethyl-Substituted Nitro Olefins Catalyzed by aCinchona-Alkaloid-Derived Squaramide. European J Org Chem 2013. [DOI: 10.1002/ejoc.201301457] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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21
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Highly enantioselective Michael addition of 1,3-dicarbonyl compounds to nitroalkenes catalyzed by designer chiral BINOL–quinine–squaramide: efficient access to optically active nitro-alkanes and their isoxazole derivatives. ACTA ACUST UNITED AC 2013. [DOI: 10.1016/j.tetasy.2013.08.010] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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22
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Organocatalytic enantioselective transient enolate protonation in conjugate addition of thioacetic acid to α-substituted N-acryloyloxazolidinones. Tetrahedron Lett 2013. [DOI: 10.1016/j.tetlet.2013.01.004] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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23
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Kowalczyk R, Nowak AE, Skarżewski J. Organocatalytic asymmetric addition of aliphatic thiols to nitro olefins and nitrodienes. ACTA ACUST UNITED AC 2013. [DOI: 10.1016/j.tetasy.2013.03.007] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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24
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Tan F, Cheng HG, Feng B, Zou YQ, Duan SW, Chen JR, Xiao WJ. Highly Enantioselective Organocatalytic Michael Addition/Cyclization Cascade Reaction of Ylideneoxindoles with Isothiocyanato Oxindoles: A Formal [3+2] Cycloaddition Approach to Optically Active Bispirooxindole Derivatives. European J Org Chem 2013. [DOI: 10.1002/ejoc.201300081] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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25
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Baran R, Veverková E, Škvorcová A, Šebesta R. Enantioselective Michael addition of 1,3-dicarbonyl compounds to a nitroalkene catalyzed by chiral squaramides – a key step in the synthesis of pregabalin. Org Biomol Chem 2013; 11:7705-11. [DOI: 10.1039/c3ob41709c] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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26
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Zhang J, Liu X, Ma X, Wang R. Organocatalyzed asymmetric vinylogous Michael addition of α,β-unsaturated γ-butyrolactam. Chem Commun (Camb) 2013; 49:9329-31. [DOI: 10.1039/c3cc44059a] [Citation(s) in RCA: 80] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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27
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Kasaplar P, Riente P, Hartmann C, Pericàs MA. A Polystyrene-Supported, Highly Recyclable Squaramide Organocatalyst for the Enantioselective Michael Addition of 1,3-Dicarbonyl Compounds to β-Nitrostyrenes. Adv Synth Catal 2012. [DOI: 10.1002/adsc.201200526] [Citation(s) in RCA: 78] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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28
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Yang W, Wang J, Du DM. Squaramide-catalyzed diastereo- and enantioselective Michael addition of 3-substituted oxindoles to nitroalkenes. ACTA ACUST UNITED AC 2012. [DOI: 10.1016/j.tetasy.2012.06.018] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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29
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Enantioselective sulfa-Michael addition of thioacids to α,β-unsaturated ketones with bifunctional organocatalyst. Tetrahedron Lett 2012. [DOI: 10.1016/j.tetlet.2012.02.052] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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30
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Palacio C, Connon SJ. A novel C-5′ substituted cinchona alkaloid-derived catalyst promotes additions of alkyl thiols to nitroolefins with excellent enantioselectivity. Chem Commun (Camb) 2012; 48:2849-51. [DOI: 10.1039/c2cc17965b] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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