Polyphosphate Esters as a Synthetic Agent. III. Amide and Peptide Syntheses

Abstract

PPE(polyphosphate esters) was shown to be a good agent for amide synthesis from a variety of carboxylic acids and primary amines. It also effected imide cyclization. Though in the presence of PPE peptide derivatives were obtained by coupling aminoacids or peptides, full racemization took place. The structure of PPE was discussed with brief review of literatures.