Enantioselective Bromocyclization of Allylic Amides Catalyzed by BINAP Derivatives
作者:Yuji Kawato、Akino Kubota、Hiromi Ono、Hiromichi Egami、Yoshitaka Hamashima
DOI:10.1021/acs.orglett.5b00220
日期:2015.3.6
A highly enantioselective bromocyclization of allylic amides with N-bromosuccinimide (NBS) was developed with DTBM-BINAP as a catalyst, affording chiral oxazolines with a tetrasubstituted carbon center in high yield with up to 99% ee. By utilizing the bromo substituent as a handle, the obtained compounds were converted to synthetically useful chiral building blocks.