Abstract
AbstractRecently we reported the reaction of 1,1‐dimethyl‐4‐substituted semicarbazides with phosgene to occur with formation of several new heterocyclic ring systems. Here we report the reaction of several semicarbazides, thiosemicarbazides and related acyl substituted hydrazides with oxalyl chloride and malonyl chloride. These reactions occur with the formation of heterocyclic products which are oxadiazolinones, imidazolidinetriones, 2‐thioxoimidazolindine‐4,5‐diones, and 2‐thioxo‐1,3‐diazine‐4,6‐diones (2‐thioxopyrimidine‐4,6‐diones).
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