Synthesis of the cyclic oxalates of 1,2-glycols by controlling the formation of the cyclic carbonates
Abstract
Cyclic oxalates 2 have been efficiently synthesized by the reaction of 1,2-glycols 1 with oxalyl chloride in the presence of pyridine or 2,4,6-trimethylpyridine, rather than triethylamine, or by reaction with 1,1′-oxalyldiimidazole.