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Zhang S, Perveen S, Ouyang Y, Xu L, Yu T, Zhao M, Wang L, Song P, Li P. Design and Synthesis of Tunable Chiral 2,2'-Bipyridine Ligands: Application to the Enantioselective Nickel-Catalyzed Reductive Arylation of Aldehydes. Angew Chem Int Ed Engl 2022; 61:e202117843. [PMID: 35174597 DOI: 10.1002/anie.202117843] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Indexed: 11/11/2022]
Abstract
A new class of chiral 2,2'-bipyridine ligands, SBpy, featuring minimized short-range steric hindrance and structural tunability was rationally designed and developed, and the effectiveness was demonstrated in the first highly enantioselective Ni-catalyzed addition of aryl halides to aldehydes. In comparison with known approaches using preformed aryl metallic reagents, this reaction is more step-economical and functional group tolerant. The reaction mechanism and a model of stereocontrol were proposed based on experimental and computational results.
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Affiliation(s)
- Shuai Zhang
- Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi 710054, China
| | - Saima Perveen
- School of Chemistry, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
| | - Yizhao Ouyang
- Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi 710054, China
| | - Liang Xu
- School of Chemistry and Chemical Engineering/Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, Shihezi University, Shihezi, 832003, China
| | - Tao Yu
- Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi 710054, China
| | - Min Zhao
- Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi 710054, China
| | - Linghua Wang
- Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi 710054, China
| | - Peidong Song
- Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi 710054, China
| | - Pengfei Li
- Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi 710054, China.,State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin, 300071, China
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2
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Zhang S, Perveen S, Ouyang Y, Xu L, Yu T, Zhao M, Wang L, Song P, Li P. Design and Synthesis of Tunable Chiral 2,2′‐Bipyridine Ligands: Application to the Enantioselective Nickel‐Catalyzed Reductive Arylation of Aldehydes. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202117843] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Shuai Zhang
- Frontier Institute of Science and Technology Xi'an Jiaotong University Xi'an Shaanxi 710054 China
| | - Saima Perveen
- School of Chemistry Xi'an Jiaotong University Xi'an Shaanxi 710049 China
| | - Yizhao Ouyang
- Frontier Institute of Science and Technology Xi'an Jiaotong University Xi'an Shaanxi 710054 China
| | - Liang Xu
- School of Chemistry and Chemical Engineering/Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan Shihezi University Shihezi 832003 China
| | - Tao Yu
- Frontier Institute of Science and Technology Xi'an Jiaotong University Xi'an Shaanxi 710054 China
| | - Min Zhao
- Frontier Institute of Science and Technology Xi'an Jiaotong University Xi'an Shaanxi 710054 China
| | - Linghua Wang
- Frontier Institute of Science and Technology Xi'an Jiaotong University Xi'an Shaanxi 710054 China
| | - Peidong Song
- Frontier Institute of Science and Technology Xi'an Jiaotong University Xi'an Shaanxi 710054 China
| | - Pengfei Li
- Frontier Institute of Science and Technology Xi'an Jiaotong University Xi'an Shaanxi 710054 China
- State Key Laboratory of Elemento-Organic Chemistry Nankai University Tianjin 300071 China
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3
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Eckert P, Sharif S, Organ MG. Salt to Taste: The Critical Roles Played by Inorganic Salts in Organozinc Formation and in the Negishi Reaction. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202010917] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Philip Eckert
- Centre for Catalysis Research and Innovation (CCRI) Department of Chemistry and Biomolecular Sciences University of Ottawa Ottawa Ontario K1N6N5 Canada
| | - Sepideh Sharif
- Centre for Catalysis Research and Innovation (CCRI) Department of Chemistry and Biomolecular Sciences University of Ottawa Ottawa Ontario K1N6N5 Canada
| | - Michael G. Organ
- Centre for Catalysis Research and Innovation (CCRI) Department of Chemistry and Biomolecular Sciences University of Ottawa Ottawa Ontario K1N6N5 Canada
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4
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Eckert P, Sharif S, Organ MG. Salt to Taste: The Critical Roles Played by Inorganic Salts in Organozinc Formation and in the Negishi Reaction. Angew Chem Int Ed Engl 2020; 60:12224-12241. [DOI: 10.1002/anie.202010917] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2020] [Indexed: 01/06/2023]
Affiliation(s)
- Philip Eckert
- Centre for Catalysis Research and Innovation (CCRI) Department of Chemistry and Biomolecular Sciences University of Ottawa Ottawa Ontario K1N6N5 Canada
| | - Sepideh Sharif
- Centre for Catalysis Research and Innovation (CCRI) Department of Chemistry and Biomolecular Sciences University of Ottawa Ottawa Ontario K1N6N5 Canada
| | - Michael G. Organ
- Centre for Catalysis Research and Innovation (CCRI) Department of Chemistry and Biomolecular Sciences University of Ottawa Ottawa Ontario K1N6N5 Canada
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Chaumont‐Olive P, Rouen M, Barozzino‐Consiglio G, Ben Abdeladhim A, Maddaluno J, Harrison‐Marchand A. Chiral Lithium Amido Aryl Zincates: Simple and Efficient Chemo‐ and Enantio‐Selective Aryl Transfer Reagents. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201813510] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Pauline Chaumont‐Olive
- Normandie UnivUNIROUEN, INSA de RouenCNRSLaboratoire COBRA (UMR 6014 & FR 3038) 76000 Rouen France
| | - Mathieu Rouen
- Normandie UnivUNIROUEN, INSA de RouenCNRSLaboratoire COBRA (UMR 6014 & FR 3038) 76000 Rouen France
| | | | - Amel Ben Abdeladhim
- Normandie UnivUNIROUEN, INSA de RouenCNRSLaboratoire COBRA (UMR 6014 & FR 3038) 76000 Rouen France
| | - Jacques Maddaluno
- Normandie UnivUNIROUEN, INSA de RouenCNRSLaboratoire COBRA (UMR 6014 & FR 3038) 76000 Rouen France
| | - Anne Harrison‐Marchand
- Normandie UnivUNIROUEN, INSA de RouenCNRSLaboratoire COBRA (UMR 6014 & FR 3038) 76000 Rouen France
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6
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Chaumont‐Olive P, Rouen M, Barozzino‐Consiglio G, Ben Abdeladhim A, Maddaluno J, Harrison‐Marchand A. Chiral Lithium Amido Aryl Zincates: Simple and Efficient Chemo‐ and Enantio‐Selective Aryl Transfer Reagents. Angew Chem Int Ed Engl 2019; 58:3193-3197. [DOI: 10.1002/anie.201813510] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2018] [Indexed: 11/07/2022]
Affiliation(s)
- Pauline Chaumont‐Olive
- Normandie UnivUNIROUEN, INSA de RouenCNRSLaboratoire COBRA (UMR 6014 & FR 3038) 76000 Rouen France
| | - Mathieu Rouen
- Normandie UnivUNIROUEN, INSA de RouenCNRSLaboratoire COBRA (UMR 6014 & FR 3038) 76000 Rouen France
| | | | - Amel Ben Abdeladhim
- Normandie UnivUNIROUEN, INSA de RouenCNRSLaboratoire COBRA (UMR 6014 & FR 3038) 76000 Rouen France
| | - Jacques Maddaluno
- Normandie UnivUNIROUEN, INSA de RouenCNRSLaboratoire COBRA (UMR 6014 & FR 3038) 76000 Rouen France
| | - Anne Harrison‐Marchand
- Normandie UnivUNIROUEN, INSA de RouenCNRSLaboratoire COBRA (UMR 6014 & FR 3038) 76000 Rouen France
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7
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Collados JF, Solà R, Harutyunyan SR, Maciá B. Catalytic Synthesis of Enantiopure Chiral Alcohols via Addition of Grignard Reagents to Carbonyl Compounds. ACS Catal 2016. [DOI: 10.1021/acscatal.5b02832] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Juan F. Collados
- Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747AG Groningen, Netherlands
| | - Ricard Solà
- Division of Chemistry and Environmental Science, Faculty of Science and Engineering, Manchester Metropolitan University, John Dalton Building, Oxford Road, M1 5GD Manchester, U.K
| | - Syuzanna R. Harutyunyan
- Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747AG Groningen, Netherlands
| | - Beatriz Maciá
- Division of Chemistry and Environmental Science, Faculty of Science and Engineering, Manchester Metropolitan University, John Dalton Building, Oxford Road, M1 5GD Manchester, U.K
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Valot G, Mailhol D, Regens CS, O'Malley DP, Godineau E, Takikawa H, Philipps P, Fürstner A. Concise Total Syntheses of Amphidinolides C and F. Chemistry 2014; 21:2398-408. [DOI: 10.1002/chem.201405790] [Citation(s) in RCA: 65] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2014] [Indexed: 01/23/2023]
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9
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Uenishi A, Nakagawa Y, Osumi H, Harada T. Practical Enantioselective Arylation and Heteroarylation of Aldehydes with In Situ Prepared Organotitanium Reagents Catalyzed by 3-Aryl-H8-BINOL-Derived Titanium Complexes. Chemistry 2013; 19:4896-905. [DOI: 10.1002/chem.201203946] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2012] [Indexed: 11/06/2022]
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Zheng LS, Jiang KZ, Deng Y, Bai XF, Gao G, Gu FL, Xu LW. Synthesis of Ar-BINMOL Ligands by [1,2]-Wittig Rearrangement to Probe Their Catalytic Activity in 1,2-Addition Reactions of Aldehydes with Grignard Reagents. European J Org Chem 2012. [DOI: 10.1002/ejoc.201201301] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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11
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Cheng YN, Wu HL, Wu PY, Shen YY, Uang BJ. Enantioselective Addition of Dialkylzincs to Aldehydes Catalyzed by (−)-MITH. Chem Asian J 2012; 7:2921-4. [DOI: 10.1002/asia.201200676] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2012] [Indexed: 11/10/2022]
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12
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McGrew GI, Stanciu C, Zhang J, Carroll PJ, Dreher SD, Walsh PJ. Asymmetric cross-coupling of aryl triflates to the benzylic position of benzylamines. Angew Chem Int Ed Engl 2012; 51:11510-3. [PMID: 23037512 DOI: 10.1002/anie.201201874] [Citation(s) in RCA: 67] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2012] [Revised: 08/11/2012] [Indexed: 11/09/2022]
Affiliation(s)
- Genette I McGrew
- UPenn/Merck High Throughput Experimentation Laboratories, University of Pennsylvania Department of Chemistry, 231 South 34th St. Philadelphia, PA 19104, USA
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13
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McGrew GI, Stanciu C, Zhang J, Carroll PJ, Dreher SD, Walsh PJ. Asymmetric Cross-Coupling of Aryl Triflates to the Benzylic Position of Benzylamines. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201201874] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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14
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Sui YZ, Zhang XC, Wu JW, Li S, Zhou JN, Li M, Fang W, Chan ASC, Wu J. CuII-Catalyzed Asymmetric Hydrosilylation of Diaryl- and Aryl Heteroaryl Ketones: Application in the Enantioselective Synthesis of Orphenadrine and Neobenodine. Chemistry 2012; 18:7486-92. [DOI: 10.1002/chem.201200379] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2012] [Indexed: 11/08/2022]
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15
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Bernhardt S, Manolikakes G, Kunz T, Knochel P. Preparation of Solid Salt-Stabilized Functionalized Organozinc Compounds and their Application to Cross-Coupling and Carbonyl Addition Reactions. Angew Chem Int Ed Engl 2011; 50:9205-9. [DOI: 10.1002/anie.201104291] [Citation(s) in RCA: 80] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2011] [Indexed: 11/06/2022]
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16
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Armstrong DR, Clegg W, García-Álvarez P, Kennedy AR, McCall MD, Russo L, Hevia E. Expanding Mg-Zn Hybrid Chemistry: Inorganic Salt Effects in Addition Reactions of Organozinc Reagents to Trifluoroacetophenone and the Implications for a Synergistic Lithium-Magnesium-Zinc Activation. Chemistry 2011; 17:8333-41. [DOI: 10.1002/chem.201100866] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2011] [Indexed: 11/07/2022]
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17
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Fan XY, Yang YX, Zhuo FF, Yu SL, Li X, Guo QP, Du ZX, Da CS. AlCl3 and BDMAEE: a pair of potent reactive regulators of aryl Grignard reagents and highly catalytic asymmetric arylation of aldehydes. Chemistry 2010; 16:7988-91. [PMID: 20544755 DOI: 10.1002/chem.201000974] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Xin-Yuan Fan
- Institute of Biochemistry & Molecular Biology, School of Life Sciences, Lanzhou University, Lanzhou 730000, China
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18
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Metzger A, Bernhardt S, Manolikakes G, Knochel P. MgCl2-beschleunigte Additionen von funktionalisierten Organozinkreagentien an Aldehyde, Ketone und Kohlendioxid. Angew Chem Int Ed Engl 2010. [DOI: 10.1002/ange.201000634] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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19
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Metzger A, Bernhardt S, Manolikakes G, Knochel P. MgCl2-Accelerated Addition of Functionalized Organozinc Reagents to Aldehydes, Ketones, and Carbon Dioxide. Angew Chem Int Ed Engl 2010; 49:4665-8. [DOI: 10.1002/anie.201000634] [Citation(s) in RCA: 129] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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20
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Glynn D, Shannon J, Woodward S. On the Scope of Trimethylaluminium-Promoted 1,2-Additions of ArZnX Reagents to Aldehydes. Chemistry 2009; 16:1053-60. [DOI: 10.1002/chem.200901803] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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21
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Li H, Zhu D, Hua L, Biehl E. Enantioselective Reduction of Diaryl Ketones Catalyzed by a Carbonyl Reductase fromSporobolomyces salmonicolorand its Mutant Enzymes. Adv Synth Catal 2009. [DOI: 10.1002/adsc.200900045] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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22
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Muramatsu Y, Harada T. Catalytic Asymmetric Aryl Transfer Reactions to Aldehydes with Grignard Reagents as the Aryl Source. Chemistry 2008; 14:10560-3. [DOI: 10.1002/chem.200801612] [Citation(s) in RCA: 72] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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23
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Hawner C, Li K, Cirriez V, Alexakis A. Copper-Catalyzed Asymmetric Conjugate Addition of Aryl Aluminum Reagents to Trisubstituted Enones: Construction of Aryl-Substituted Quaternary Centers. Angew Chem Int Ed Engl 2008; 47:8211-4. [PMID: 18814167 DOI: 10.1002/anie.200803436] [Citation(s) in RCA: 124] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Christine Hawner
- Department of Organic Chemistry, University of Geneva, 30 quai ernest Ansermet, 1211 Geneve 4, Switzerland
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24
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Hawner C, Li K, Cirriez V, Alexakis A. Kupferkatalysierte asymmetrische konjugierte Addition von Arylaluminiumreagentien an cyclische Enone: Aufbau arylsubstituierter quartärer Stereozentren. Angew Chem Int Ed Engl 2008. [DOI: 10.1002/ange.200803436] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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25
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26
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Chen C, Wu K, Gau H. A New Aspect of Magnesium Bromide‐Promoted Enantioselective Aryl Additions of Triaryl(tetrahydrofuran)aluminum to Ketones Catalyzed by a Titanium(IV) Catalyst oftrans‐1,2‐Bis(hydroxycamphorsulfonylamino)cyclohexane. Adv Synth Catal 2008. [DOI: 10.1002/adsc.200800169] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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27
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Practical Implications of Boron-to-Zinc Transmetalation for the Catalytic Asymmetric Arylation of Aldehydes. Angew Chem Int Ed Engl 2008; 47:1098-101. [DOI: 10.1002/anie.200703103] [Citation(s) in RCA: 74] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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28
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Jimeno C, Sayalero S, Fjermestad T, Colet G, Maseras F, Pericàs M. Practical Implications of Boron-to-Zinc Transmetalation for the Catalytic Asymmetric Arylation of Aldehydes. Angew Chem Int Ed Engl 2008. [DOI: 10.1002/ange.200703103] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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29
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Johnson JB, Bercot EA, Williams CM, Rovis T. A concise synthesis of eupomatilones 4, 6, and 7 by rhodium-catalyzed enantioselective desymmetrization of cyclic meso anhydrides with organozinc reagents generated in situ. Angew Chem Int Ed Engl 2007; 46:4514-8. [PMID: 17492814 DOI: 10.1002/anie.200700816] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Jeffrey B Johnson
- Department of Chemistry, Colorado State University, Fort Collins, CO 80523, USA
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30
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Johnson J, Bercot E, Williams C, Rovis T. A Concise Synthesis of Eupomatilones 4, 6, and 7 by Rhodium-Catalyzed Enantioselective Desymmetrization of Cyclicmeso Anhydrides with Organozinc Reagents Generated In Situ. Angew Chem Int Ed Engl 2007. [DOI: 10.1002/ange.200700816] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Brown MK, May TL, Baxter CA, Hoveyda AH. All-carbon quaternary stereogenic centers by enantioselective cu-catalyzed conjugate additions promoted by a chiral N-heterocyclic carbene. Angew Chem Int Ed Engl 2007; 46:1097-100. [PMID: 17200971 DOI: 10.1002/anie.200604511] [Citation(s) in RCA: 206] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- M Kevin Brown
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, MA 02467, USA
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32
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Schmidt F, Rudolph J, Bolm C. Diarylmethanols by Catalyzed Asymmetric Aryl Transfer Reactions onto Aldehydes Using Boronic Acids as Aryl Source. Adv Synth Catal 2007. [DOI: 10.1002/adsc.200600390] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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33
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Brown M, May T, Baxter C, Hoveyda A. All-Carbon Quaternary Stereogenic Centers by Enantioselective Cu-Catalyzed Conjugate Additions Promoted by a Chiral N-Heterocyclic Carbene. Angew Chem Int Ed Engl 2007. [DOI: 10.1002/ange.200604511] [Citation(s) in RCA: 77] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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