A facile route to pyrazolo[3,4-b]pyridines and [1]benzopyrano[4 ',3 '-e]pyrazolo[3,4-b]pyridines

Authors
Sabitha, G Srividya, R Archana, B Yadav, JS
Citation
G. Sabitha et al., A facile route to pyrazolo[3,4-b]pyridines and [1]benzopyrano[4 ',3 '-e]pyrazolo[3,4-b]pyridines, SYN COMMUN, 29(4), 1999, pp. 655-665
Citations number
17
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
SYNTHETIC COMMUNICATIONS
ISSN journal
00397911 → ACNP
Volume
29
Issue
4
Year of publication
1999
Pages
655 - 665
Database
ISI
SICI code
0039-7911(1999)29:4<655:AFRTPA>2.0.ZU;2-1
Abstract
A direct synthesis of pyrazolo[3,4-b]pyridines [5&6] and [1]benzopyrano[4', 3 '-e]pyrazolo[3,4-b]pyridines (7) is described by Friedlander condensation . An alternative and a short route for the preparation of[1]benzopyrano[4', 3'-e]pyrazolo[3,4-b]pyridines (7) is also reported.