The use of aqueous dimethylamine as reagent for the regiospecific C4-epimerization of cis-3-substituted 4-formyl-2-azetidinones
作者:Benito Alcaide、Moustafa F. Aly、Alberto Rodríguez-Vicente
DOI:10.1016/s0040-4039(98)01167-8
日期:1998.8
A simple and efficient method for the synthesis of trans-3-substituted 4-formyl-2-azetidinones 2 is described based on the regiospecific C4-epimerization of the cis-isomers 1 using aqueous dimethylamine as reagent in heterogeneous medium. (C) 1998 Elsevier Science Ltd. All rights reserved.