A new P,S-Chiral auxiliary derived from thioglucose. X-ray structure of a palladium 1,3-diphenylallyl complex with a strongly rotated allyl ligand

被引:114
作者
Albinati, A
Pregosin, PS
Wick, K
机构
[1] Lab. für Anorganische Chemie, ETH Zentrum
关键词
D O I
10.1021/om950983m
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
The new ferrocene-based P,S-chiral auxiliary 1, derived from thioglucose, has been prepared and used in the palladium-catalyzed enantioselective allylic alkylation reaction. The X-ray structure of the allyl cationic complex [Pd(eta(3)-PhCHCHCHPh)(1)]CF3SO3 (2) reveals a markedly rotated 1,3-diphenylallyl ligand such that the terminal allyl carbon C(3), trans to the phosphorus donor, is ca. 0.85(3) Angstrom below the coordination plane. This distortion is pertinent to the Pd(0) transition state complex expected in the allylic alkylation reaction.
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页码:2419 / 2421
页数:3
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