1.
Org Lett
; 4(9): 1603-5, 2002 May 02.
Article
in English
| MEDLINE
| ID: mdl-11975639
ABSTRACT
[reaction: see text]. We describe a superior procedure for the catalytic, asymmetric synthesis of beta-lactams using a bifunctional catalyst system consisting of a chiral nucleophile and an achiral Lewis acid.