首页 | 本学科首页   官方微博 | 高级检索  
     检索      


Catalyst structure and the enantioselective cyclopropanation of alkenes by copper complexes of biaryldiimines: the importance of ligand acceleration
Institution:1. College of Chemistry and Material Science, Guangxi Teachers Education University, Nanning 530001, PR China;2. College of Petroleum and Chemical Engineering, Qizhou University, Qizhou, PR China;1. CHRU de Lille, Unité Inserm U703, 152, rue du Dr-Yersin, 59120 Loos, France;2. CHRU de Lille, Hôpital Jeanne de Flandre, Service de gynécologie, 59000 Lille, France;3. Université de Lorraine, UMR 7274 CNRS, Laboratoire réactions et génie des procédés, 54000 Nancy, France;1. N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospect 47, 119991, Moscow, Russian Federation;2. Lomonosov Moscow University of Fine Chemical Technology, 86 prosp. Vernadskogo, 119571, Moscow, Russian Federation;3. UFIP CNRS UMR 6286, Mechanism and regulation of DNA repair team Université de Nantes, 2 rue de la Houssinière, 44322, France
Abstract:The use of chiral non-racemic biaryl copper(I) complexes in the enantioselective cyclopropanation of a number of olefins with either ethyl or tert-butyl diazoacetate is described. Lack of ligand acceleration and the presence of equilibrium amounts of catalytically active uncomplexed Cu(I) ions account for lowered enantioselectivity when using certain ligands.
Keywords:
本文献已被 ScienceDirect 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号