Research Journal of Pharmacy and Technology

SCOPUS
  • Year: 2020
  • Volume: 13
  • Issue: 6

An effective multicomponent synthesis of 2,6-dihydro-2,6-diimino-4,8-bis (phenylamino) pyrimido [2,1-b] [1,3] thiazine-3,7-dicarbonitrile

1P G Research Centre, Department of Chemistry, Degloor College, Degloor, S.R.T.M.U., Nanded, India – 431717

2P G Department of Chemistry, L. B. S. College, Dharmabad, S.R.T.M.U., Nanded, India-431717

Abstract

A mixture of Bis methylthio methylene malononitrile (BMMM), thiourea and aniline/4-chloro aniline/4-methoxy aniline/4-nitro aniline on reflux with dimethyl formamide solvent in presence of K2CO3 for 5–6 hours. The progress of the reaction was monitored by TLC. After completion of the reaction, the mixture was cooled to room temperature, washed with water gives 2,6-dihydro-2,6-diimino-4,8-bis (phenylamino) pyrimido [2,1-b] [1,3] thiazine-3,7-dicarbonitrile and its derivatives respectively. The synthesized compounds were characterized by elemental analysis and spectral data.

Keywords

Bis methylthio methylene malononitrile, thiourea, 4-substituted anilines, K2CO3, dimethyl formamide