Stereocontrolled addition of organozinc reagents derived from 2-(bromomethyl)acrylates to chiral imines.
摘要:
Stereocontrolled addition of isolated organozinc reagents derived from 2-(bromomethyl)acrylates to imines can be achieved with ee approximately 100% using alpha-amino esters as chiral auxiliaries. High yields of pure RR or SS N-substituted alpha-methylene gamma-lactams can be prepared by this method.