Reaction of 4‐phenylthiosemicarbazide with dialkyl acetylenedicarboxylate in CH2Cl2 at 0°C lead to construction of alkyl 3‐amino‐2‐phenyliminothiazolidine‐4‐one‐5‐ylidene acetate in a few minutes and good yields. Alternatively, the use of thiosemicarbazide has given the corresponding 3‐amino‐2‐iminothiazolidine‐4‐one‐5‐ylidene acetate, while application of di‐t‐butylacetylenedicarboxylate in these
In this work, we proposed the synthesis of several new derivatives of 3-(substituted phenyl)-2-[(substituted benzoyl)imino]-1,3-thiazolidine-4-one by using substituted thiourea and chloroacetic acid. The structure of compounds were confirmed with IR, 1H NMR and 13C NMR spectroscopy.