Sonocatalyzed facile synthesis of 2-aryl benzoxazoles using MnO2 nanoparticles as oxidant agent under mild conditions

نویسندگانحسین نعیمی,زهرا روزگار,ثریا رحمتی نژاد
شماره صفحات2087
شماره مجلد47
ضریب تاثیر (IF)0.377
نوع مقالهFull Paper
تاریخ انتشار2017-10-11
رتبه نشریهعلمی - پژوهشی
نوع نشریهالکترونیکی
کشور محل چاپایران
نمایه نشریهISI

چکیده مقاله

Nano MnO2 was found to be an efficient oxidant agent for the synthesis of 2-substituted benzoxazoles through one-pot reaction of o-aminophenol and different aromatic aldehydes in acetonitrile under ultrasonic irradiation. This method was performed under mild conditions with high yields, inexpensive and readily available oxidant agent, facile and easy experimental procedure, simple purification of final products, and short reaction times. The prepared nano MnO2 has been characterized by FTIR, XRD, and SEM techniques. The pure products were identified and characterized by physical and spectroscopic data such as; melting point, IR, 1H NMR, and 13C NMR.

tags: 2-Aryl benzoxazole; nano MnO2; o-aminophenol; oxidant; ultrasound