Synthesis of new N-[3-(Benzo[d]thiazol-2-yl)-4-methylthiazol-2(3H)-ylidene] substituted benzamides

摘要

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 lpha-bromoacteone produced in situ using bromine in dry acetone in the presence of triethylamine.