This article presents a novel catalytic method by combining phase-transfer catalyst,benzyltriethylammonium chloride,with 4-dimethylaminopyridine for the synthes
A series of esters of R-tetrahydrothiazo-2-thione-4-carboxylic acid[R-TTCA] was synthesized by direct esterification of R-TTCA with alcohols(CH3OH,C2H5OH,n-C3H7