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A new route for the preparation of pyrazolo[3,4-c] pyridines

✍ Scribed by Onofrio Migliara; Salvatore Petruso; Vincenzo Sprio

Book ID
112125643
Publisher
Journal of Heterocyclic Chemistry
Year
1979
Tongue
English
Weight
170 KB
Volume
16
Category
Article
ISSN
0022-152X

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m. p.=248-250GC (dec.; from methanol); [.ID= -129.' (DMSO, c = 1.00); 'H-NMR (D6-DMSO); t=4.13 and 4.18 (s, I-H+l'-H and s, 2 2-benzyl-H, or vice versa); MS: 520 (M+)]. The amino ketone ( 8 ) is probably first formed, being later aromatized by dimerization and air oxidation to yield ( 9 ) . The firs