An asymmetric hydrocyanation/Michael reaction of α-diazoacetates <i>via</i> Cu(<scp>i</scp>)/chiral guanidine catalysis
作者:Sai Ruan、Xia Zhong、Quangang Chen、Xiaoming Feng、Xiaohua Liu
DOI:10.1039/c9cc09521g
日期:——
An asymmetric one-pot hydrocyanation/Michael reaction of α-aryl diazoacetates with trimethylsilyl cyanide, tert-butanol, and N-phenylmaleimides has been realized. Using a chiral guanidinium salt/CuBr catalyst, a series of cyanide-containing pyrrolidine-2,5-diones could be obtained in good yields with excellent diastereo- and enantioselectivities.
已经实现了α-芳基重氮乙酸酯与三甲基甲硅烷基氰化物,叔丁醇和N-苯基马来酰亚胺的不对称单锅氢氰化/迈克尔反应。使用手性胍盐/ CuBr催化剂,可以高收率获得一系列含氰化物的吡咯烷-2,5-二酮,并具有出色的非对映和对映选择性。