Synthesis of pyrazolo-annelated heterocyclic ring compounds such as pyrazolo[3,4-b]pyridines and pyrazolo[4′,3′:5,6]pyrido[2,3-d]pyrimidines

被引：29

作者：

Jachak, Madhukar N.

Avhale, Appasaheb B.

Toche, Ragunath B.

Sabnis, Ram W.

机构：

[1] BH Commerce & AM Sci Coll, Post Grad Dept Chem, KRT Arts, Nasik 422002, India

[2] Ascadia Inc, Eagan, MN 55123 USA

来源：

JOURNAL OF HETEROCYCLIC CHEMISTRY | 2007年 / 44卷 / 02期

关键词：

D O I：

10.1002/jhet.5570440210

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

A series of pyrazolo[3,4-b]pyridines has been synthesized by Friedlander condensation of 5-amino-pyrazole-4-carbaldehyde 1 with active methylene compounds in basic medium. Pyrazolo[4'3':5,6]pyrido[2,3-d]pyrimidines have been synthesized from pyrazolo[3,4-b]pyridines using substituted urea and acetic anhydride.

引用

页码：343 / 347

页数：5

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