Synthesis of substituted pyrazolo[1,5-a]quinoxalines using the reductive cyclization

Synthesis of substituted pyrazolo[1,5-a]quinoxalines using the reductive cyclization

New pyrazolo[1,5- a ]quinoxalin-4-ones were obtained by reductive cyclization from the corresponding 1-(2-nitroaryl)pyrazole-5-carboxylates. Alternatively, pyrazolo[1,5- a ]quinoxalines were prepared from N -hydroxypyrazolo[1,5- a ]quinoxalines.

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Veröffentlicht in:Russian chemical bulletin 2020-10, Vol.69 (10), p.1965-1970
Hauptverfasser: Panova, V. A., Ivanovskii, S. A., Shetnev, A. A., Chirkova, Zh. V., Sudzilovskaya, T. N., Filimonov, S. I.
Format: Artikel
Sprache:eng
Schlagworte:
Carboxylates
Chemistry
Chemistry and Materials Science
Chemistry/Food Science
Full Articles
Inorganic Chemistry
Organic Chemistry
Pyrazole
Quinoxalines
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Zusammenfassung:New pyrazolo[1,5- a ]quinoxalin-4-ones were obtained by reductive cyclization from the corresponding 1-(2-nitroaryl)pyrazole-5-carboxylates. Alternatively, pyrazolo[1,5- a ]quinoxalines were prepared from N -hydroxypyrazolo[1,5- a ]quinoxalines.
ISSN:1066-5285
1573-9171
DOI:10.1007/s11172-020-2986-1