PREPARATION AND REACTIONS OF HENYL-1,7-DIPHENYLPYRANO[2,3-C-6,5-C]PYRAZOL-8-IUM PERCHLORATE

Authors
ATTA AH ABBAS HH YOUNES MI METWALLY SA
Citation
Ah. Atta et al., PREPARATION AND REACTIONS OF HENYL-1,7-DIPHENYLPYRANO[2,3-C-6,5-C]PYRAZOL-8-IUM PERCHLORATE, Heterocyclic communications, 2(5), 1996, pp. 475-480
Citations number
7
Categorie Soggetti
Chemistry Inorganic & Nuclear
Journal title
Heterocyclic communications → ACNP
ISSN journal
07930283
Volume
2
Issue
5
Year of publication
1996
Pages
475 - 480
Database
ISI
SICI code
0793-0283(1996)2:5<475:PAROH>2.0.ZU;2-A
Abstract
1-phenyl-4-(4'-nitrobenzylidine)-2-pyrazolin-5-one I reacts with 3-met hyl-1-phenyl-2-pyrazolin-5-one II in acetic anhydride/perchloric acid mixture to give the pyrylium salt III. Reaction of III with amines and active methylenes were studied.