New Chiral 1,2-Diamines and Their Use in Zinc-Catalyzed Asymmetric Hydrosilylation of Acetophenone
作者:Virginie Bette、André Mortreux、Federico Ferioli、Gianluca Martelli、Diego Savoia、Jean-François Carpentier
DOI:10.1002/ejoc.200400129
日期:2004.7
The preparation of two new series of chiral 1,2-diamines and their use in the [ZnR2-diamine]-catalyzed asymmetric hydrosilylation of acetophenone with poly(methylhydrosiloxane) (PMHS) in an aprotic medium is reported. The effect of structural modifications of the secondary diamine ligand, in particular a possible cooperative effect of two different types of chiral centers, on the N-benzylic side-arms
报告了两个新系列的手性 1,2-二胺的制备及其在 [ZnR2-二胺] 催化的苯乙酮与聚(甲基氢硅氧烷)(PMHS)在非质子介质中的不对称氢化硅烷化中的应用。已经研究了仲二胺配体的结构修饰的影响,特别是两种不同类型的手性中心对 N-苄基侧臂和二胺骨架的亚乙基桥可能的协同作用。描述了一种新的二胺配体,可提供高达 91% 的 ee。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2004)