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Abstract
1,3-Diaryl-3-thioglycolic acid-1-propanones 3a-k have been synthesized by the reaction of either erythro-2,3-dibromo-1,3-diaryl-1-propanones 1a-k or their corresponding trans-chalcones 2a.k with disodio-thioglycotate in absolute ethanol. The structure of the products was proven by UV, IR, NMR spectra and elemental analysis. A reaction mechanism leading to the products, and the carbon-sulfur bond fission in alkaline medium were discussed.