A facile one step synthesis of 1, 6??dihydro??7H??pyrazolo [4, 3??d]??pyrimidin??7??ones

NR Reddy, GM Reddy, BS Reddy…

Index: Reddy, Nalla Ram; Reddy, Ghanta Mahesh; Reddy, Battu Saida; Reddy, Padi Pratap Journal of Heterocyclic Chemistry, 2005 , vol. 42, # 5 p. 751 - 754

Full Text: HTML

Citation Number: 8

Abstract

Abstract A general synthetic approach to pyrazolo [4, 3-d] pyrimidines is reported. Aldehydes, arylideneanilines, carboxylic acids and orthoesters are used as one-carbon units for bridging the two amino functions of 4-amino-1-alkyl-3-propylpyrazole-5- carboxamides.