α,β-Unsaturated Carboxylic Acid Derivatives. VI. New Synthesis of N-Acyl-α-dehydroamino Acid Esters

Abstract
A new synthetic route to α,β-unsaturated N-acyl-α-amino acid esters (N-acyl-α-dehydroamino acid esters) is described. The dehydroamino acid esters were prepared by the dehydration of α-(N-acylhydroxyamino) acid esters (10), derived from the acylation of α-hydroxyamino acid esters (2 and 6), and by the elimination of carboxylic acid from α-(N-acyl-O-acetyl), α-(N,O-diacetyl, dipropionyl and diethoxycarbonyl-hydroxyamino) acid esters, obtained by the acylation of 2, 6 and 10, in the presence of triethylamine.

This publication has 12 references indexed in Scilit: