ChemInform Abstract: Lactones. Part 21. Ring Cleavages in the Reductive Alkylation of Amines with 4‐Oxo‐6,6‐diphenyltetrahydropyran‐2‐one.

Abstract

Short‐time reaction of the β‐keto lactone (I) with the amines (II) gives low yields of the enamines (III).