Synthesis of new 1-benzyl-4,6-diaryl-2,3-dihydropyrazolo[3,4-b][1,4]diazepines

Authors
Insuasty, B Rodriguez, R Quiroga, J Abonia, R Saitz, C Jullian, C
Citation
B. Insuasty et al., Synthesis of new 1-benzyl-4,6-diaryl-2,3-dihydropyrazolo[3,4-b][1,4]diazepines, HETEROCYC C, 6(3), 2000, pp. 231-238
Citations number
12
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
HETEROCYCLIC COMMUNICATIONS
ISSN journal
07930283 → ACNP
Volume
6
Issue
3
Year of publication
2000
Pages
231 - 238
Database
ISI
SICI code
0793-0283(2000)6:3<231:SON1>2.0.ZU;2-2
Abstract
The reaction of 4-amino-3-aryl-5-benzylaminopyrazoles (1a,b) with 3-dimethy laminopropiophenones (2) in ethanol with acetic acid gave 1-benzyl-4,6-diar yl-2,3-dihydropyrazolo[3,4-b] [1,4]diazepines (3a-h). The structure elucida tion of the products is based on detailed nmr analysis (H-1, C-13 and DEPT) .