Abstract: | An efficient synthesis of novel 5-(4-nitrophenyl)-2-benzoxazol-2-yl-c-hetero-fused thiophenes was achieved by the condensation of 5-(4-nitrophenyl)-2-benzoxazol-2-yl-3,4-dichlorothiophene with ethylene glycol, ethylenediamine, substituted thioamides and 2-mercaptobenzimidazole using sodium carbonate in refluxing dimethyl formamide. |