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Three-component synthesis of new o-hydroxyphenyl-substituted pyrazolo[3,4-b]pyridines promoted by FeCl3

Authors :
Miaomiao Shu
Ling Fan
Chaochao Yao
Source :
Heterocyclic Communications. 22:63-67
Publication Year :
2016
Publisher :
Walter de Gruyter GmbH, 2016.

Abstract

An efficient three-component synthesis of o-hydroxyphenyl-substituted pyrazolo[3,4-b]pyridines from substituted salicylic aldehydes, β-keto esters and 5-aminopyrazoles in the presence of FeCl3 is presented. Newly synthesized compounds were fully characterized by means of 1H NMR, 13C NMR, IR, HRMS and elemental analysis.

Details

ISSN :
21910197 and 07930283
Volume :
22
Database :
OpenAIRE
Journal :
Heterocyclic Communications
Accession number :
edsair.doi...........0cf090f0d240238bc63e47705525f715