NITROPYRAZOLES .2. NITRO-DERIVATIVES OF DIPYRAZOLO[3,4-B-4',3'-E]PYRAZINE

Authors
DALINGER IL ZUBANOVA NI KUZMIN VS SHEVELEV SA
Citation
Il. Dalinger et al., NITROPYRAZOLES .2. NITRO-DERIVATIVES OF DIPYRAZOLO[3,4-B-4',3'-E]PYRAZINE, Russian chemical bulletin, 42(7), 1993, pp. 1211-1215
Citations number
11
Categorie Soggetti
Chemistry
Journal title
Russian chemical bulletin → ACNP
ISSN journal
10665285
Volume
42
Issue
7
Year of publication
1993
Pages
1211 - 1215
Database
ISI
SICI code
1066-5285(1993)42:7<1211:N.NOD>2.0.ZU;2-A
Abstract
Unsubstituted 1H,7H-dipyrazolo[3,4-b-,4',3'-e]pyrazine has been synthe sized for the first time starting from 5-amino-3-methyl-1-phenylpyrazo le. Its nitration to form C- and N-dinitro-substituted derivatives has been studied. The molecular structure of ,5-dinitro-1H,7H-dipyrazolo[ 3,4-b;4',3'-e]pyrazine has been established by X-ray structural invest igation; the NH acidity of this compound and the orientation of its al kylation with bromoacetone have also been determined.