nano-cry zeolite as a new and reusable catalyst for synthesis 2-aryl-1h-benzothiazoles

the nano-cry zeolite synthesized and characterized by fourier transfer infrared (ft-ir), x-ray diffraction (xrd),and scanning electron microscopy (sem).the result show that nano catalyst prepared with mainly particles size about 30-80 nm .the xrd show the structure of the zeolite does not collapse. this nano-cry zeolite has been used as new, and nontoxic catalyst for catalyzes of synthesis of 2-aryl-1h-benzothiazoles at mild condition . this procedure is simple, effective, inexpensive and green. the products were obtained in high yields and the catalyst is reusable. since products were obtained by aqua work-up in good purity and complex purification methods are not necessary.