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Chemistry of Coumarins. Some Novel Heterocycles from Deoxygenation of 4-Arylamino-3-nitrocoumarins

Katmerka Tabaković ; Faculty of Technology, »Djuro Pucar Stari« University, Banjaluka, Yugoslavia
Ibro Tabaković ; Faculty of Technology, »Djuro Pucar Stari« University, Banjaluka, Yugoslavia

Sažetak

Reaction of 4-arylamino-3-nitrocoumarins with triethyl phosphite
was investigated. The yet unreported 6-H-1-benzopyrano-
-[4,3-b]quinoxalin-6-one (2a) system was synthesized and characte-
rized on the basis of spectral and analytical data. Four derivatives
(2a-2d) were obtained in good yields ranging from 68 to 76.

Ključne riječi

Hrčak ID:

176358

URI

https://hrcak.srce.hr/176358

Datum izdavanja:

25.6.1987.

Posjeta: 825 *