Effect of aliphatic alcohols on the reaction of acetoacetic ester with formaldehyde and primary amines

Abstract

Composition of hemiacetals formed by the reaction of paraformaldehyde with aliphatic alcohols in the presence of catalytic amounts of Et 3 N was studied and the effect of the nature of hemiacetals on the yield and composition of the products of their condensation with acetoacetic ester and primary amines under the Mannich reaction conditions was examined.