DOI: 10.1039/A603951K
(Paper)
Reference Section for: J. Chem. Res. (S), 1997, 322-323
Studies on the Synthesis and Cyclization Reactions of2-(5-Amino-3-arylpyrazol-1-yl)-3-methylquinoxalines
(Note: The full text of this document is currently only available in the PDF Version )
Hassan A. El-Sherief, Abdalla M. Mahmoud and Ahmed A. Ismaiel
Abstract
A series of2-(5-amino-3-arylpyrazol-1-yl)-3-methylquinoxalines (2a–d)has been synthesized by the condensation of2-hydrazino-3-methylquinoxaline (1) with substitutedbenzoylacetonitriles and converted into the corresponding3,4-diaryl-1-(3-methylquinoxalin-2-yl)-4,8-dihydro-1H -pyrazolo[3,4-e ][1,4]thiazepin-7(6H )-ones(7a–d) and2-(3-aryl-4,5,6,7-tetrahydro-5-alkyl/aryl-1H -pyrazolo[3,4-d ]pyrimidin-1-yl)-3-methylquinoxalines(8a–e).
References
- Y. Kurasawa and A. Takad, Heterocycles, 1986, 24, 2321 CAS.
- Y. Kurasawa, M. Muramatsu, K. Yamazaki, S. Tajima, Y. Okamoto and A. Takada, J. Heterocycl. Chem., 1986, 23, 1379, 1391.
- G. Skata, K. Makino and Y. Kurasawa, Heterocycles, 1988, 27, 2481.
- G. Vertuani, P. Giori, M. Guarneri and G. P. Sarto, J. Pharm. Sci., 1985, 74, 1013 CAS.
- P. Giori, T. Poli, C. B. Vicentini, M. Manfrini, M. Guarneri and V. Brandolini, Farmaco, Ed. Sci., 1985, 40, 795 Search PubMed.
- C. B. Vincentini, T. Poli, M. Manfrini, M. Guarnerim, P. Giori and V. Brandolini, Farmaco, Ed. Sci., 1987, 42, 133 Search PubMed.
- C. B. Vicentini, T. Poli, A. C. Veronese, V. Brandolini, M. Manfrini, M. Guarneri and P. Giori, Pestic. Sci., 1989, 27, 77 Search PubMed.
- C. B. Vicentini, A. C. Veronese, P. Giori, B. Lumachi and M. Guarneri, Tetrahedron, 1990, 46, 5777 CrossRef CAS.
- G. Szilagyi and P. Dvortsak, Monatsh. Chem., 1989, 120, 131 CAS.
- L. Jennig, J. Hofmann, M. Alva-Astudillo and G. Mann, J. Prakt. Chem., 1990, 332(1), 351 CrossRef CAS.
- M. Tramontini and L. Angiolini, Tetrahedron, 1990, 46, 1791 CrossRef CAS.