Gewald reaction for the synthesis of benzo[4,5]-thieno[2,3-d]pyrimidin-4(3H)-one derivatives and it’s antimicrobial study
ABSTRACT A variety of schiff base of 3-amino-2,7-dimethyl-5,6,7,8-tetrahydrobenzothienopyrimidin-4(3H)-one have been synthesized using novel and yield efficient protocol i.e., Gewald condensation...