Activated nitriles in heterocyclic synthesis: synthesis of substituted pyrazolopyridine, pyridine, 4H-pyran and naphthodiapyran derivatives
Alexandria Journal of Pharmaceutical Sciences. 1998; 12 (2): 91-94
en Inglés
| IMEMR
| ID: emr-47460
ABSTRACT
Several new pyrazolopyridines VIa-c were synthesized by reacting 4-nitrosoantipyrine [IIa] with arylidenemalononitriles Ia-c or ethyl arylidenecyanoacetates If-h. Reaction of Ia-c with 4-[azidomethylcarbonyl] antipyrine [IIb] afforded the pyridine derivatives XVI. The 4H-pyrans and naphthodipyran derivatives XVIII- XXI were prepared by reacting I with polyhydric phenols
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Índice:
IMEMR (Mediterraneo Oriental)
Asunto principal:
Piranos
/
Pirazoles
/
Piridinas
/
Compuestos Heterocíclicos
Idioma:
Inglés
Revista:
Alex. J. Pharm. Sci.
Año:
1998
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