Design and synthesis of some new thiophene, thienopyrimidine and thienothiadiazine derivatives of antipyrine as potential antimicrobial agents
作者:Hala M. Aly、Nashwa M. Saleh、Heba A. Elhady
DOI:10.1016/j.ejmech.2011.07.035
日期:2011.9
pyrazolone 2 was synthesized by acetylation of 4-amino antipyrine 1 in excellent yield. 4-acetamide pyrazolone 2 was exploited as a starting material for the syntheses of hitherto unknown different types of newheterocycliccompounds incorporating the antipyrine moiety which expect highly biological activity against various microorganisms. Thus, Claisen condensation of 4-acetamide pyrazolone 2 with diethyl