Synthesis 2015; 47(04): 517-525
DOI: 10.1055/s-0034-1378909
paper
© Georg Thieme Verlag Stuttgart · New York

A Simple and Efficient Synthesis of 3,4,5-Trisubstituted/N-Fused 1,2,4-Triazoles via Ceric Ammonium Nitrate Catalyzed Oxidative Cyclization of Amidrazones with Aldehydes Using Polyethylene Glycol as a Recyclable Reaction Medium

Mangarao Nakka
Department of Organic Chemistry & FDW, Andhra University, Visakhapatnam - 530 003, India   Fax: +91(891)2713813   Email: sidduchem@gmail.com
,
Ramu Tadikonda
Department of Organic Chemistry & FDW, Andhra University, Visakhapatnam - 530 003, India   Fax: +91(891)2713813   Email: sidduchem@gmail.com
,
Srinuvasarao Rayavarapu
Department of Organic Chemistry & FDW, Andhra University, Visakhapatnam - 530 003, India   Fax: +91(891)2713813   Email: sidduchem@gmail.com
,
Prasanthi Sarakula
Department of Organic Chemistry & FDW, Andhra University, Visakhapatnam - 530 003, India   Fax: +91(891)2713813   Email: sidduchem@gmail.com
,
Siddaiah Vidavalur*
Department of Organic Chemistry & FDW, Andhra University, Visakhapatnam - 530 003, India   Fax: +91(891)2713813   Email: sidduchem@gmail.com
› Author Affiliations
Further Information

Publication History

Received: 23 July 2014

Accepted after revision: 06 October 2014

Publication Date:
20 November 2014 (online)


Abstract

An environmentally benign protocol is described for the synthesis of 3,4,5-trisubstituted 1,2,4-triazoles and N-fused 1,2,4-triazoles via ceric ammonium nitrate catalyzed oxidative cyclization of amidrazones and aldehydes using polyethylene glycol as recyclable reaction medium. This protocol is effective toward various substrates having different functionalities. The easy recyclability of the reaction medium makes the process economic and potentially viable for commercial applications.