Synthesis, molecular structure and tautomerism of 1(2)H-dihydropyrazolo[3,4-b]pyridin-6-ones

Authors
Quiroga, J Insuasty, B Hormaza, A Cabildo, P Claramunt, RM Elguero, J
Citation
J. Quiroga et al., Synthesis, molecular structure and tautomerism of 1(2)H-dihydropyrazolo[3,4-b]pyridin-6-ones, HETEROCYC C, 5(2), 1999, pp. 115-122
Citations number
12
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
HETEROCYCLIC COMMUNICATIONS
ISSN journal
07930283 → ACNP
Volume
5
Issue
2
Year of publication
1999
Pages
115 - 122
Database
ISI
SICI code
0793-0283(1999)5:2<115:SMSATO>2.0.ZU;2-N
Abstract
Six 1 (2)H-3-aryl-4-p-chlorophenyl-dihydropyrazolo[3,4-b]pyrindin-6-ones ha ve been prepared from the corresponding arylaminopyrazoles. The NMR study o f these compounds reveals that all of them exist as 2H-tautomers in solutio n (DMSO-d(6)) as well and in the solid state.