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 asymmetricone-pot hydrocyanation/Michaelreaction 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.