Reaction of 4,5-diamino-3-methyl-1-phenylpyrazole with 3-dimethylaminopropiophenones. Synthesis of new 4-aryl-6-methyl-8-phenyl-2,3-dihydropyrazolo[3,4-b]diazepines and 4-aryl-8-methyl-6-phenyl-2,3-dihydropyrazolo[4,3-b]diazepines

Authors
Insuasty, B Insuasty, H Quiroga, J Saitz, C Jullian, C
Citation
B. Insuasty et al., Reaction of 4,5-diamino-3-methyl-1-phenylpyrazole with 3-dimethylaminopropiophenones. Synthesis of new 4-aryl-6-methyl-8-phenyl-2,3-dihydropyrazolo[3,4-b]diazepines and 4-aryl-8-methyl-6-phenyl-2,3-dihydropyrazolo[4,3-b]diazepines, J HETERO CH, 36(3), 1999, pp. 635-638
Citations number
20
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
JOURNAL OF HETEROCYCLIC CHEMISTRY
ISSN journal
0022152X → ACNP
Volume
36
Issue
3
Year of publication
1999
Pages
635 - 638
Database
ISI
SICI code
0022-152X(199905/06)36:3<635:RO4W3>2.0.ZU;2-V
Abstract
New 4-Aryl-6-methyl-8-phenyl-2,3-dihydropyrazolo[3,4-b]diazepines and 4-ary l-8-methyl-6-phenyl-2,3-dihydropyrazolo[4,3-b]diazepines were obtained from the reaction of 4,5-diamino-3-methyl-1-phenylpyrazole 1 with one equivalen t of the 3-dimethylaminopropiophenones 2 in absolute ethanol. The structure s of 4-aryl-6-methyl-8-phenyl-2,3-dihydropyrazolo[3,4-b]diazepines 3 and 4- aryl-s-methyl-6phenyl-2,3-dihydropyrazolo[4,3-b]diazepines 4 were determine d by detailed nmr measurements.