J. Quiroga, A. Hormaza, B. Insuasty
Mar 1, 1998
Citations
0
Influential Citations
46
Citations
Journal
Journal of Heterocyclic Chemistry
Abstract
A series of dihydropyrazolo[3,4-b]pyridin-6-ones 3 was prepared by cyclization of 5-amino-1-aryl-3-methylpyrazoles 1 and Meldrum's acid benzylidene derivatives 2 in nitrobenzene. The structure of 4,5-dihydropyrazolo[3,4-b]pyridin-6-ones and reaction orientation were determined by nmr measurements.