1
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Wang X, Li LJ, Wang ZY, Xu H, Dai HX. Homologation of aryl ketones to long-chain ketones and aldehydes via C-C bond cleavage. iScience 2022; 25:104505. [PMID: 35720269 PMCID: PMC9204744 DOI: 10.1016/j.isci.2022.104505] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2022] [Revised: 04/26/2022] [Accepted: 05/27/2022] [Indexed: 10/29/2022] Open
Abstract
Transition metal-catalyzed C-C bond cleavage is a powerful tool for the reconstruction of a molecular skeleton. We report herein the multi-carbon homologation of aryl ketones to long-chain ketones and aldehydes via ligand-promoted Ar-C(O) bond cleavage and subsequent cross coupling with alkenols. Various (hetero)aryl ketones are compatible in the reaction, affording the corresponding products wtih good to excellent yields with high regioselectivity. Further applications in the late-stage diversification of biologically important molecules demonstrate the synthetic utility of this protocol. Mechanistic studies indicate that the ligand plays an important role in both C-C bond cleavage and the asymmetric migration-insertion process.
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Affiliation(s)
- Xing Wang
- CAS Key Laboratory of Receptor Research, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Ling-Jun Li
- CAS Key Laboratory of Receptor Research, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Zhen-Yu Wang
- School of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210023, China
| | - Hui Xu
- CAS Key Laboratory of Receptor Research, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Hui-Xiong Dai
- CAS Key Laboratory of Receptor Research, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China.,School of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210023, China.,School of Pharmaceutical Science and Technology, Hangzhou Institute of Advanced Study, Hangzhou 310024, China
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2
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Tang Y, Shen C, Yao Q, Tian X, Wang B, Dong K. Efficient Synthesis of γ‐Lactones by Cobalt‐Catalyzed Carbonylative Ring Expansion of Oxetanes under Syngas Atmosphere. ChemCatChem 2020. [DOI: 10.1002/cctc.202001294] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Yitian Tang
- Chang-Kung Chuang Institute and Shanghai Key Laboratory of Green Chemistry and Chemical Processes School of Chemistry and Molecular Engineering East China Normal University Shanghai 200062 P. R. China
| | - Chaoren Shen
- Chang-Kung Chuang Institute and Shanghai Key Laboratory of Green Chemistry and Chemical Processes School of Chemistry and Molecular Engineering East China Normal University Shanghai 200062 P. R. China
| | - Qiyi Yao
- Chang-Kung Chuang Institute and Shanghai Key Laboratory of Green Chemistry and Chemical Processes School of Chemistry and Molecular Engineering East China Normal University Shanghai 200062 P. R. China
| | - Xinxin Tian
- Institute of Molecular Science Key Laboratory of Materials for Energy Conversion and Storage of Shanxi Province Shanxi University Taiyuan 030006 P. R. China
| | - Bo Wang
- Shanghai Puyi Chemical Co., Ltd. Shanghai 201612 P. R. China
| | - Kaiwu Dong
- Chang-Kung Chuang Institute and Shanghai Key Laboratory of Green Chemistry and Chemical Processes School of Chemistry and Molecular Engineering East China Normal University Shanghai 200062 P. R. China
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3
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Iron-Catalyzed Conjugate Addition of Aryl Iodides onto Activated Alkenes under Air in Water. Catalysts 2020. [DOI: 10.3390/catal10111320] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The combination of commercially available FeCl3·6H2O with a water-soluble cationic 2,2′-bipyridyl catalytic system was found to enable the direct conjugate addition of aryl iodides onto activated alkenes, such as an α,β-unsaturated ester and a ketone, in a weakly acidic aqueous solution. This operationally simple protocol was carried out at 80 °C under air atmosphere in a potassium acetate-buffered aqueous solution for 12 h in the presence of Zn dust as a reductant to provide the desired 1,4-adducts in good yields.
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4
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Ming J, Shi Q, Hayashi T. Addition of arylstannanes to alkynes giving ortho-alkenylarylstannanes catalysed cooperatively by a rhodium complex and zinc chloride. Chem Sci 2018; 9:7700-7704. [PMID: 30393531 PMCID: PMC6182567 DOI: 10.1039/c8sc02459f] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Accepted: 08/10/2018] [Indexed: 12/02/2022] Open
Abstract
The reaction of arylstannanes ArSnR3 with unfunctionalised alkynes was found to proceed in the presence of a rhodium catalyst and a catalytic amount of zinc chloride to give ortho-alkenylarylstannanes with high selectivity in high yields. The catalytic cycle is very unique, consisting of three transmetalation steps, from Sn to Rh, Rh to Zn, and Zn to Sn, in addition to arylrhodation of alkyne followed by 1,4-migration of Rh from 2-arylalkenyl carbon to ortho-alkenylaryl carbon.
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Affiliation(s)
- Jialin Ming
- Division of Chemistry and Biological Chemistry , School of Physical and Mathematical Sciences , Nanyang Technological University , 21 Nanyang Link , Singapore 637371 , Singapore .
| | - Qi Shi
- Division of Chemistry and Biological Chemistry , School of Physical and Mathematical Sciences , Nanyang Technological University , 21 Nanyang Link , Singapore 637371 , Singapore .
| | - Tamio Hayashi
- Division of Chemistry and Biological Chemistry , School of Physical and Mathematical Sciences , Nanyang Technological University , 21 Nanyang Link , Singapore 637371 , Singapore .
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5
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Hsieh JC, Chu YH, Muralirajan K, Cheng CH. A simple route to 1,4-addition reactions by Co-catalyzed reductive coupling of organic tosylates and triflates with activated alkenes. Chem Commun (Camb) 2017; 53:11584-11587. [DOI: 10.1039/c7cc06881f] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
An efficient Co-catalyzed 1,4-addition reaction of alkyl/aryl triflates and tosylates with activated alkenes is described.
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Affiliation(s)
- Jen-Chieh Hsieh
- Department of Chemistry
- Tamkang University
- New Taipei City
- Republic of China
| | - Yi-Hua Chu
- Department of Chemistry
- National Tsing Hua University
- Hsinchu
- Republic of China
| | | | - Chien-Hong Cheng
- Department of Chemistry
- Tamkang University
- New Taipei City
- Republic of China
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6
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Rh-catalyzed asymmetric 1,4-addition reactions to α,β-unsaturated carbonyl and related compounds: an update. ACTA ACUST UNITED AC 2016. [DOI: 10.1016/j.tetasy.2016.05.004] [Citation(s) in RCA: 86] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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7
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Mannathan S, Raoufmoghaddam S, Reek JNH, de Vries JG, Minnaard AJ. Palladium(II) Acetate Catalyzed Reductive Heck Reaction of Enones; A Practical Approach. ChemCatChem 2015. [DOI: 10.1002/cctc.201500760] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Subramaniyan Mannathan
- Stratingh Institute for Chemistry; University of Groningen; Nijenborgh 7 9747 AG Groningen The Netherlands), Fax: (+31) 50-363-429
| | - Saeed Raoufmoghaddam
- Van ‘t Hoff Institute for Molecular Sciences; University of Amsterdam; Science Park 904 1098 XH Amsterdam The Netherlands
| | - Joost N. H. Reek
- Van ‘t Hoff Institute for Molecular Sciences; University of Amsterdam; Science Park 904 1098 XH Amsterdam The Netherlands
| | - Johannes G. de Vries
- Stratingh Institute for Chemistry; University of Groningen; Nijenborgh 7 9747 AG Groningen The Netherlands), Fax: (+31) 50-363-429
- Leibniz-Institut für Katalyse e.V. an der; Universität Rostock; Albert-Einstein-Strasse 29a 18059 Rostock Germany
| | - Adriaan J. Minnaard
- Stratingh Institute for Chemistry; University of Groningen; Nijenborgh 7 9747 AG Groningen The Netherlands), Fax: (+31) 50-363-429
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8
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Manikandan R, Jeganmohan M. Recent advances in the ruthenium-catalyzed hydroarylation of alkynes with aromatics: synthesis of trisubstituted alkenes. Org Biomol Chem 2015; 13:10420-36. [DOI: 10.1039/c5ob01472g] [Citation(s) in RCA: 129] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The hydroarylation of alkynes with amide, azole, carbamate, phosphine oxide, amine, acetyl, sulfoxide and sulphur substituted aromatics in the presence of a ruthenium catalyst via chelation-assisted C–H bond activation is discussed.
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Affiliation(s)
- Rajendran Manikandan
- Department of Chemistry
- Indian Institute of Science Education and Research
- Pune 411021
- India
| | - Masilamani Jeganmohan
- Department of Chemistry
- Indian Institute of Science Education and Research
- Pune 411021
- India
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9
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Kagoshima H, Yahagi T. Conjugate Addition of α-Sulfur-substituted Alkylstannanes to α,β-Unsaturated Ketones Mediated by a Copper(II) Triflate and Chlorotrimethylsilane Combination. CHEM LETT 2013. [DOI: 10.1246/cl.130284] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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10
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Morigaki A, Tanaka T, Miyabe T, Ishihara T, Konno T. Rhodium(i)-catalyzed 1,4-conjugate arylation toward β-fluoroalkylated electron-deficient alkenes: a new entry to a construction of a tertiary carbon center possessing a fluoroalkyl group. Org Biomol Chem 2013. [DOI: 10.1039/c2ob26708j] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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11
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Chen W, Chen H, Xiao F, Deng GJ. Palladium-catalyzed conjugate addition of arylsulfonyl hydrazides to α,β-unsaturated ketones. Org Biomol Chem 2013; 11:4295-8. [DOI: 10.1039/c3ob40518d] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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12
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Chen MH, Mannathan S, Lin PS, Cheng CH. Cobalt(II)-Catalyzed 1,4-Addition of Organoboronic Acids to Activated Alkenes: An Application to Highlycis-Stereoselective Synthesis of Aminoindane Carboxylic Acid Derivatives. Chemistry 2012; 18:14918-22. [DOI: 10.1002/chem.201202575] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2012] [Revised: 10/08/2012] [Indexed: 01/02/2023]
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13
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14
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Chen W, Zhou X, Xiao F, Luo J, Deng GJ. Palladium-catalyzed desulfitative addition of sodium sulfinates with α,β-unsaturated carbonyl compounds. Tetrahedron Lett 2012. [DOI: 10.1016/j.tetlet.2012.06.026] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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15
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Shu W, Buchwald SL. Enantioselective β-Arylation of Ketones Enabled by Lithiation/Borylation/1,4-Addition Sequence Under Flow Conditions. Angew Chem Int Ed Engl 2012; 51:5355-8. [DOI: 10.1002/anie.201202221] [Citation(s) in RCA: 72] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2012] [Indexed: 11/08/2022]
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16
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Shu W, Buchwald SL. Enantioselective β-Arylation of Ketones Enabled by Lithiation/Borylation/1,4-Addition Sequence Under Flow Conditions. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201202221] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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17
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Affiliation(s)
- Ping Tian
- CAS Key Laboratory of Synthetic Chemistry
of Natural
Substances, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032,
China
| | - Han-Qing Dong
- CAS Key Laboratory of Synthetic Chemistry
of Natural
Substances, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032,
China
| | - Guo-Qiang Lin
- CAS Key Laboratory of Synthetic Chemistry
of Natural
Substances, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032,
China
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18
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Li CJ. Unorthodox chemistry for an unorthodox challenge: Exploration of new chemical reactivities for a sustainable future. Sci China Chem 2011. [DOI: 10.1007/s11426-011-4414-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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19
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Hoffman TJ, Carreira EM. Catalytic Asymmetric Intramolecular Hydroacylation with Rhodium/Phosphoramidite-Alkene Ligand Complexes. Angew Chem Int Ed Engl 2011; 50:10670-4. [PMID: 21928464 DOI: 10.1002/anie.201104595] [Citation(s) in RCA: 70] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2011] [Indexed: 11/07/2022]
Affiliation(s)
- Thomas J Hoffman
- Laboratorium für Organische Chemie, ETH Zürich, 8093 Zürich, Switzerland
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20
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Hoffman TJ, Carreira EM. Catalytic Asymmetric Intramolecular Hydroacylation with Rhodium/Phosphoramidite-Alkene Ligand Complexes. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201104595] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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21
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Lan Y, Houk KN. Mechanism of the Palladium-Catalyzed Addition of Arylboronic Acids to Enones: A Computational Study. J Org Chem 2011; 76:4905-9. [DOI: 10.1021/jo2002903] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yu Lan
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095-1569, United States
| | - K. N. Houk
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095-1569, United States
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22
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Hargrave JD, Allen JC, Frost CG. Alternatives to organoboron reagents in rhodium-catalyzed conjugate additions. Chem Asian J 2010; 5:386-96. [PMID: 20052705 DOI: 10.1002/asia.200900512] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The rhodium-catalyzed conjugate addition of organoboron reagents to alkene acceptors has emerged as an important methodology in organic synthesis. The process results in the formation of new carbon-carbon bonds, and in principle, can create new stereocenters at both the alpha and beta carbon atoms of the acceptor. Other organometallics are known to participate in the key transmetalation to rhodium and are becoming more established in stereoselective synthesis (notably arylzinc reagents). This Focus Review will describe recent developments in the use of alternative organometallic donors to organoboron reagents in rhodium-catalyzed conjugate addition reactions and their growing applications in synthesis.
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Affiliation(s)
- Jonathan D Hargrave
- Department of Chemistry, University of Bath, Claverton Down, Bath, BA2 7AY, UK
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23
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Huang SH, Wu TM, Tsai FY. pH-Dependent conjugate addition of arylboronic acids to α,β-unsaturated enones catalyzed by a reusable palladium(II)/cationic 2,2′-bipyridyl system in water under air. Appl Organomet Chem 2010. [DOI: 10.1002/aoc.1654] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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24
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Mahoney SJ, Dumas AM, Fillion E. Asymmetric Addition of Alkenylstannanes to Alkylidene Meldrum’s Acids. Org Lett 2009; 11:5346-9. [DOI: 10.1021/ol902216y] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Stuart J. Mahoney
- Department of Chemistry, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada
| | - Aaron M. Dumas
- Department of Chemistry, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada
| | - Eric Fillion
- Department of Chemistry, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada
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25
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Kurita J, Kakusawa N, Yasuike S. Rhodium-Catalyzed Conjugate Addition of Sb-Aryl-1,5-azastibocines to α,β-Unsaturated Carbonyl Compounds. HETEROCYCLES 2009. [DOI: 10.3987/com-08-s(f)113] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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26
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Cerrada E, Moreno A, Laguna M. S,C- and S,S-coupling via dithiolate transfer reactions from tin to nickel complexes. Dalton Trans 2009:6825-35. [DOI: 10.1039/b902569c] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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27
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Hirashita T, Hayashi A, Tsuji M, Tanaka J, Araki S. Radical reactions initiated by the photochemical cleavage of carbon–indium bonds of organoindium compounds. Tetrahedron 2008. [DOI: 10.1016/j.tet.2008.01.013] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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28
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Porcel S, López-Carrillo V, García-Yebra C, Echavarren A. Gold-Catalyzed Allyl–Allyl Coupling. Angew Chem Int Ed Engl 2008; 47:1883-6. [DOI: 10.1002/anie.200704500] [Citation(s) in RCA: 65] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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29
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Porcel S, López-Carrillo V, García-Yebra C, Echavarren A. Gold-Catalyzed Allyl–Allyl Coupling. Angew Chem Int Ed Engl 2008. [DOI: 10.1002/ange.200704500] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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30
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Kilian M, Wadepohl H, Gade LH. Triamidostannates(II) as Sterically Demanding Ligands for Rhodium and Iridium. Organometallics 2008. [DOI: 10.1021/om700960p] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Michaela Kilian
- Anorganisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Hubert Wadepohl
- Anorganisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Lutz H. Gade
- Anorganisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
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31
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Johnson J, Rovis T. More than Bystanders: The Effect of Olefins on Transition-Metal-Catalyzed Cross-Coupling Reactions. Angew Chem Int Ed Engl 2008; 47:840-71. [DOI: 10.1002/anie.200700278] [Citation(s) in RCA: 323] [Impact Index Per Article: 20.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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32
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Johnson J, Rovis T. Nicht ganz unbeteiligt: der Einfluss von Olefinen auf übergangsmetallkatalysierte Kreuzkupplungen. Angew Chem Int Ed Engl 2008. [DOI: 10.1002/ange.200700278] [Citation(s) in RCA: 99] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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33
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Kakusawa N, Kurita J. Rhodium Catalyzed 1,4-Conjugate Addition of 1,5-Azastibocines with Electron Deficient Olefins. Chem Pharm Bull (Tokyo) 2008; 56:1502-4. [DOI: 10.1248/cpb.56.1502] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
| | - Jyoji Kurita
- Faculty of Pharmaceutical Sciences, Hokuriku University
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34
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Chau W, Turner R, Braslau R. Ketone ω-functionalization of polymers prepared by nitroxide-mediated polymerization via addition to a benzyl enol ether. REACT FUNCT POLYM 2008. [DOI: 10.1016/j.reactfunctpolym.2007.07.006] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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35
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Le Nôtre J, Allen JC, Frost CG. Enantioselective rhodium-catalysed 1,4-additions of 2-heteroarylzinc donors using Me-DUPHOS. Chem Commun (Camb) 2008:3795-7. [DOI: 10.1039/b806098c] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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36
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1,4-Additions of arylboron, -silicon, and -bismuth compounds to α,β-unsaturated carbonyl compounds catalyzed by dicationic palladium(II) complexes. PURE APPL CHEM 2008. [DOI: 10.1351/pac200880050807] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
An enantioselective synthesis of cyclic and acyclic β-aryl ketone and aldehydes via Pd(II)-catalyzed 1,4-addition of Ar-m [m = B(OH)2, BF3K, Si(OMe)3, SiF3, BiAr2] to α,β-unsaturated ketones or aldehydes is described. The catalytic cycle involves transmetallation between Ar-m and Pd complexes as a key process, the mechanism of which is discussed on the basis of characterization of the transmetallation intermediate and electronic effect of the substituents. The enantioselection mechanism and efficiency of a chiraphos ligand for structurally planar α,β-unsaturated ketones are discussed on the basis of the X-ray structure of the catalyst and results of density functional theory (DFT) computational studies on the model of coordination of the substrates to the phenylpalladium(II)/(S,S)-chiraphos intermediate.
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37
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Lin PS, Jeganmohan M, Cheng CH. Nickel-Catalyzed Mizoroki–Heck- versus Michael-Type Addition of Organoboronic Acids to α,β-Unsaturated Alkenes through Fine-Tuning of Ligands. Chem Asian J 2007; 2:1409-16. [PMID: 17849401 DOI: 10.1002/asia.200700128] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Various arylboronic acids reacted with activated alkenes in the presence of [Ni(dppe)Br2], ZnCl2, and H2O in CH3CN at 80 degrees C to give the corresponding Mizoroki-Heck-type addition products in good to excellent yields. Furthermore, 1 equivalent of the hydrogenation product of the activated alkene was also produced. By tuning the ligands of the nickel complexes and the reaction conditions, Michael-type addition was achieved in a very selective manner. Thus, various p- and o-substituted arylboronic acids or alkenylboronic acid reacted smoothly with activated alkenes in CH3CN at 80 degrees C for 12 h catalyzed by Ni(acac)2, P(o-anisyl)3, and K2CO3 to give the corresponding Michael-type addition products in excellent yields. However, for m-substituted arylboronic acids, the yields of Michael-type addition products are very low. The cause of this unusual meta-substitution effect is not clear. By altering the solvent or phosphine ligand, the product yields for m-substituted arylboronic acids were greatly improved. In contrast to previous results in the literature, the present catalytic reactions required water for Mizoroki-Heck-type products and dry reaction conditions for Michael-type addition products. Possible mechanistic pathways for both addition reactions are proposed.
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Affiliation(s)
- Pao-Shun Lin
- Department of Chemistry, National Tsing Hua University, Hsinchu 30013, Taiwan
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38
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Liu Y, Mao D, Xu D, Xu Z, Zhang Y. Sm/HOAc/EtOH System–Mediated Reduction of Baylis–Hillman Acetates. SYNTHETIC COMMUN 2007. [DOI: 10.1080/00397910701577570] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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39
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Nakao Y, Chen J, Imanaka H, Hiyama T, Ichikawa Y, Duan WL, Shintani R, Hayashi T. Organo[2-(hydroxymethyl)phenyl]dimethylsilanes as Mild and Reproducible Agents for Rhodium-Catalyzed 1,4-Addition Reactions. J Am Chem Soc 2007; 129:9137-43. [PMID: 17602629 DOI: 10.1021/ja071969r] [Citation(s) in RCA: 109] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Stable and reusable tetraorganosilicon reagents, alkenyl-, aryl-, and silyl[2-(hydroxymethyl)phenyl]dimethylsilanes, undergo 1,4-addition reactions to alpha,beta-unsaturated carbonyl acceptors under mild rhodium-catalysis. The reaction tolerates a diverse range of functional groups and is applicable to gram-scale synthesis. Use of a chiral diene ligand allows the achievement of the corresponding enantioselective transformations using the tetraorganosilicon reagents, providing the silicon-based approach to optically active ketones and substituted piperidones that serve as synthetic intermediates of pharmaceuticals. A rhodium alkoxide species is suggested to be responsible for a transmetalation step on the basis of the observed kinetic resolution of a racemic chiral phenylsilane in the enantioselective 1,4-addition reaction under the rhodium-chiral diene catalysis.
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Affiliation(s)
- Yoshiaki Nakao
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Kyoto 615-8510, Japan.
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Sieber JD, Liu S, Morken JP. Catalytic Conjugate Addition of Allyl Groups to Styryl-Activated Enones. J Am Chem Soc 2007; 129:2214-5. [PMID: 17266312 DOI: 10.1021/ja067878w] [Citation(s) in RCA: 95] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Joshua D Sieber
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467, USA
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41
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Itoh T, Mase T, Nishikata T, Iyama T, Tachikawa H, Kobayashi Y, Yamamoto Y, Miyaura N. 1,4-Addition of arylboronic acids to β-aryl-α,β-unsaturated ketones and esters catalyzed by a rhodium(I)–chiraphos complex for catalytic and enantioselective synthesis of selective endothelin A receptor antagonists. Tetrahedron 2006. [DOI: 10.1016/j.tet.2006.07.075] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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42
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Douglas TM, Le Nôtre J, Brayshaw SK, Frost CG, Weller AS. Phosphine-olefin ligands: a facile dehydrogenative route to catalytically active rhodium complexes. Chem Commun (Camb) 2006:3408-10. [PMID: 16896477 DOI: 10.1039/b608129k] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Facile, metal-mediated, (acceptorless) dehydrogenation of tricyclopentyl phosphine directly affords rhodium chelating phosphine-olefin complexes, some of which are catalytically active for 1,4-additions.
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43
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Sibi MP, Tatamidani H, Patil K. Enantioselective rhodium enolate protonations. A new methodology for the synthesis of beta2-amino acids. Org Lett 2006; 7:2571-3. [PMID: 15957893 PMCID: PMC2596577 DOI: 10.1021/ol050630b] [Citation(s) in RCA: 78] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
[reaction: see text] Rhodium-catalyzed conjugate addition of an aryl boronic acid to alpha-methylamino acrylates followed by enantioselective protonation of the oxa-pi-allylrhodium intermediate provides access to aryl-substituted beta(2)-amino acids. The impact of the different variables of the reaction on the levels of enantioselectivity has been assessed.
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Affiliation(s)
- Mukund P Sibi
- Department of Chemistry, North Dakota State University, Fargo, North Dakota 58105, USA.
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44
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Asymmetric 1,4-addition of aryltrialkoxysilanes to α,β-unsaturated esters and amides catalyzed by a chiral rhodium complex. ACTA ACUST UNITED AC 2006. [DOI: 10.1016/j.tetasy.2005.12.032] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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45
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Hargrave JD, Herbert J, Bish G, Frost CG. Rhodium-catalysed addition of organotrialkoxysilanes to α-substituted acrylic esters. Org Biomol Chem 2006; 4:3235-41. [PMID: 17036111 DOI: 10.1039/b606977k] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The cationic rhodium complex [Rh(cod)2][BF4] effectively catalyses the 1,4-addition of organotrialkoxysilanes to alpha-substituted acrylic esters. The reactions are promoted by heating in an oil-bath or more conveniently in a microwave reactor allowing rapid access to a useful range of functionalised products including 2-alkyl succinates and alpha-amino acid derivatives.
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Affiliation(s)
- Jonathan D Hargrave
- Department of Chemistry, University of Bath, Claverton Down, Bath, BA2 7AY, UK
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46
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Kanazawa Y, Tsuchiya Y, Kobayashi K, Shiomi T, Itoh JI, Kikuchi M, Yamamoto Y, Nishiyama H. Asymmetric Conjugate Reduction of α,β-Unsaturated Ketones and Esters with Chiral Rhodium(2,6-bisoxazolinylphenyl) Catalysts. Chemistry 2006; 12:63-71. [PMID: 16193526 DOI: 10.1002/chem.200500841] [Citation(s) in RCA: 131] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
New asymmetric conjugate reduction of beta,beta-disubstituted alpha,beta-unsaturated ketones and esters was accomplished with alkoxylhydrosilanes in the presence of chiral rhodium(2,6-bisoxazolinylphenyl) complexes in high yields and high enantioselectivity. (E)-4-Phenyl-3-penten-2-one and (E)-4-phenyl-4-isopropyl-3-penten-2-one were readily reduced at 60 degrees C in 95 % ee and 98 % ee, respectively, by 1 mol % of catalyst loading. (EtO)2MeSiH proved to be the best hydrogen donor of choice. tert-Butyl (E)-beta-methylcinnamate and beta-isopropylcinnamate could also be reduced to the corresponding dihydrocinnamate derivatives up to 98 % ee.
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Affiliation(s)
- Yoshinori Kanazawa
- Department of Applied Chemistry, Graduate School of Engineering, Nagoya University, Chikusa, Nagoya 464-8603, Japan
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47
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Hargrave JD, Bish G, Frost CG. Switching stereoselectivity in rhodium-catalysed 1,4-additions: the asymmetric synthesis of 2-substituted pyrrolizidinones. Chem Commun (Camb) 2006:4389-91. [PMID: 17057853 DOI: 10.1039/b610128c] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The appropriate choice of organometallic nucleophile enables the straightforward preparation of different stereoisomers of 2-substituted pyrrolizidinones utilising the rhodium-catalysed 1,4-addition reaction.
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Affiliation(s)
- Jonathan D Hargrave
- Department of Chemistry, University of Bath, Claverton Down, Bath, UK BA2 7AY
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48
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Hayashi T, Tokunaga N, Okamoto K, Shintani R. Asymmetric 1,4-Addition of Arylboronic Acids to α,β-Unsaturated Aldehydes Catalyzed by a Chiral Diene–Rhodium Complex. CHEM LETT 2005. [DOI: 10.1246/cl.2005.1480] [Citation(s) in RCA: 65] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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49
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Li CJ. Organic reactions in aqueous media with a focus on carbon-carbon bond formations: a decade update. Chem Rev 2005; 105:3095-165. [PMID: 16092827 DOI: 10.1021/cr030009u] [Citation(s) in RCA: 1699] [Impact Index Per Article: 89.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Chao-Jun Li
- Department of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, Quebec H3A 2K6, Canada.
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50
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Nishikata T, Yamamoto Y, Gridnev ID, Miyaura N. Enantioselective 1,4-Addition of Ar3Bi, [ArBF3]K, and ArSiF3to Enones Catalyzed by a Dicationic Palladium(II)−Chiraphos or −Dipamp Complex. Organometallics 2005. [DOI: 10.1021/om050678t] [Citation(s) in RCA: 97] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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