Microwave-assisted one pot highly efficient synthesis of 1,3-benzothiazoles and 1,3-benzoxazole

Department of Chemistry, NIMS University, Shobha Nagar, Jaipur-303 121, Rajasthan, India Department of Chemistry, Meerut College, Meerut-250 001, Uttar Pradesh, India E-mail : narvadeshwarkushwaha@gmail.com, ashima560@gmail.com Manuscript received online 07 September 2014, accepted 15 September 2014 Highly efficient and cost effective cyclocondensation of 2-aminothiophenols/2-aminophenols and carboxylic acids to give benzothiazoles/benzoxazoles has been reported under microwave irradiation condition using pyridine and triphenyl phosphite (TPP). The one pot methodology allowed shorter reaction times, easy isolation of the products and good to excellent yields. The method is practical and efficient for parallel synthesis of the important class of heterocyclic compounds