C-Nucleophilic Substitution of 5-Halo-1,2,3-thiadiazoles as an Approach to Fused Pyridones and Pyranones
Abstract
A new approach to the one-pot preparation of fused 1,2,3-thiadiazoles from 5-chloro-substituted derivatives, involving C-nucleophilic substitution followed by subsequent cyclization, has been found.