A series of novel N-[3-(2-benzo[d]thiazol-2-yl)-4-methylthiazol-2(3H)-ylidene] substituted benzamides (2a-k) were efficiently synthesized by heterocyclization of the corresponding 1-(benzo[d]thiazol-2-yl)-3-aroylthioureas(1a-k). The cyclization was achieved by the reaction of alpha-bromoacteone produced in situ using bromine in dry acetone in the presence of triethylamine.