共 51 条
An asymmetric biaryl Suzuki cross-coupling reaction: Stereogenic benzylic carbinols as chiral auxiliaries
被引:27
作者:
Broutin, PE
[1
]
Colobert, F
[1
]
机构:
[1] Univ Strasbourg, CNRS, Lab Stereochim Associe, F-67087 Strasbourg, France
关键词:
asymmetric synthesis;
cross-coupling;
palladium;
Suzuki reaction;
stereogenic carbinol;
sulfoxides;
D O I:
10.1002/ejoc.200400638
中图分类号:
O62 [有机化学];
学科分类号:
070303 ;
081704 ;
摘要:
Asymmetric biaryl Suzuki coupling reactions were performed with various aryl- or naphthylhalide-bearing enantiomerically pure benzylic alcohols and aryl- or naphthylboronic acids (or esters). The stereogenic benzylic alcohol was introduced by diastereoselective reduction of the arylhalide bearing a beta-keto sulfoxide. In the presence of Pd(OAC)(2)/CsF and dppf or PPh3 excellent yields and atropodiastereoselectivities were obtained. The absolute configurations of the biaryls were determined by X-ray crystallography and H-1 NMR NOESY experiments. ((c) Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2005).
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页码:1113 / 1128
页数:16
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