SYNTHESIS OF 1-SUBSTITUTED AND 1-UNSUBSTITUTED 4-SULFONAMIDO-1H-PYRAZOL-5(2H)-ONES

Authors
ARCADI A ATTANASI OA DECRESCENTINI L ROSSI E SERRAZANETTI F
Citation
A. Arcadi et al., SYNTHESIS OF 1-SUBSTITUTED AND 1-UNSUBSTITUTED 4-SULFONAMIDO-1H-PYRAZOL-5(2H)-ONES, Synthesis, (4), 1996, pp. 533
Citations number
15
Categorie Soggetti
Chemistry Inorganic & Nuclear
Journal title
Synthesis → ACNP
ISSN journal
00397881
Issue
4
Year of publication
1996
Database
ISI
SICI code
0039-7881(1996):4<533:SO1A14>2.0.ZU;2-K
Abstract
4-Sulfonamido-1H-pyrazol-5(2H)-ones bearing different substituent grou ps on the nitrogen atom in position 1 were easily obtained by reaction of conjugated azoalkenes with sulfonamides under mild conditions. 1-U nsubstituted title compounds were smoothly obtained by solvolytic clea vage of the substituent groups in methanol under reflux.