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- Title
A simple synthesis of 1 Н-pyrazolo[3,4- b]pyridines.
- Authors
Sizova, Ekaterina; Arshinov, Evgenii; Kotsareva, Yana; Glizdinskaya, Larisa; Sagitullina, Galina
- Abstract
3-Acetyl-4,6-diaryl-2-methylaminopyridines were synthesized via rearrangement of quaternary 4,6-diaryl-3-cyano-2-methylpyridinium salts. Annulation of the pyrazole ring of pyrazolo[3,4- b]pyridines was achieved by N-nitrosation of the methylamino group of the pyridine and reduction of N-nitroso group to the hydrazine group with simultaneous intramolecular closure of the pyrazole ring.
- Subjects
PYRIDINE derivatives; PYRAZOLE derivatives; SALTS; CYTOKINES; NITROSATION
- Publication
Chemistry of Heterocyclic Compounds, 2017, Vol 53, Issue 9, p1026
- ISSN
0009-3122
- Publication type
Article
- DOI
10.1007/s10593-017-2165-y