Synthesis of substituted esters of imidazoles, oxazoles, thiazoles, and diethyl pyrazine-2,5-dicarboxylate from a common acyclic precursor employing C-formylation strategy
作者:Goraksha Khose、Shailesh Shinde、Anil Panmand、Ravibhushan Kulkarni、Yogesh Munot、Anish Bandyopadhyay、Dinesh Barawkar、Santoshkumar N. Patil
DOI:10.1016/j.tetlet.2014.03.039
日期:2014.4
A novel synthetic route to substituted esters of imidazoles, oxazoles, thiazoles, and diethyl pyrazine-2,5-dicarboxylates via C-formylation of glycine ethyl ester hydrochloride is reported. This methodology is simple, robust, and gives good yields of different heterocyclic esters in one or two steps from a common acyclic precursor and is amenable to large scale synthesis.