Chiral C2-Symmetric a- and w-Diimines with Bulky Substituents at Nitrogen:Synthesis and Catalytic Properties of Some Copper Complexes

Bulletin of the Korean chemical society

Sang Chul Shim¹  Tae-Jeong Kim¹  Eun-Sook Ryu¹  Seung Hwan Paek¹  Dong-Kyu Park¹  Chan Sik Cho¹ 

关键词: Chiral ferrocenes;    Diimines;    Copper catalyst;    Cyclopropanation.;   

DOI  :  

学科分类：化学（综合）

来源: Korean Chemical Society

【 摘 要 】

Two new C₂-symmetric chiral �?- and w-Diimines incorporating bulky ferrocenylethylamine and their copper(I)complexes have been synthesized and characterized by analytical and various spectroscopic techniques. The catalytic activities of these complexes have been tested in the asymmetric cyclopropanation of a series of olefins with some diazoacetates to achieve varying degree of dia- and enantio-selectivities depending on the nature of the ligand, the substrates, and the reagents. Some mechanistic implication has been made with regard to the interactions among all these chemical species.

【 授权许可】

Unknown