Convenient synthesis of 2-arylbenzothiazoles and 2-arylnaphthothiazoles

Thiazoles including five 2-arylbenzothiazoles and two 2-arylnaphthothiazoles were synthesized using a simple synthetic strategy in this work. 2-Arylbenzothiazoles and 2-arylnaphthothiazoles can be prepared by the reaction of methylaromatics with aniline or naphthylamine in the presence of elemental sulfur, respectively. All the seven thiazoles were characterized by the melting point measurement, FTIR, 1H NMR, 13C NMR and GC–MS analysis.