Synthesis of carboxylic amides by ring-opening of oxazolidinones with Grignard reagents
作者:David Bensa、Iain Coldham、Pia Feinäugle、Ravindra B. Pathak、Roger J. Butlin
DOI:10.1039/b800849c
日期:——
including allyl, benzyl, alkyl and phenyl magnesium halides. The organomagnesium species attacks the carbonyl group and promotes ring-opening of the oxazolidinone. The product tertiary amides are useful substrates for stereoselective transformations and were applied to a highly selective enolate alkylation and to a ring-closing metathesis reaction to a six-membered lactam and hence a formal synthesis of the