Asian Journal of Research in Chemistry
  • Year: 2017
  • Volume: 10
  • Issue: 2

An effective one pot synthesis of 3, 4-dihydro-8-nitro-2H-1, 2, 4-triazino[3, 4-b] benzothiazole-3, 4-dione and its derivatives

1S. R. T. M. University, Nanded, Maharashtra, India

P.G. Department of Chemistry, Degloor College, Degloor-431717, Dist: Nanded

*Corresponding Author E-mail: anilchidrawar74@gmail.com

Online published on 17 July, 2017.

Abstract

A mixture of 6-nitro-2-hydrazino benzothiazole (I) on heated with diethyl oxalate (II) in presence of pyridine gives 3, 4-dihydro-8-nitro-2H-1, 2, 4-triazino[3, 4-b] benzothiazole-3, 4-dione (III). Which on further reaction with different heteryl amines such as morpholine, pyrrolidine and piperidine afforded Mannich bases (IV a-c).

Keywords

6-nitro-2-hydrazino benzothiazole, pyridine, diethyl oxalate, dimethyl formamide