Formation of derivatives of N-hydroxyindoles, annelated with furazan and furoxan rings
Abstract
Upon reaction of 4-oxo-5-hydroxyimino-4,5,6,7-tetrahydrobenzofurazan and tetrahydrobenzofuroxan with acetylacetone, 8-acetyl-6-hydroxy-7-methylpyrrolo[2,3-e]benzofurazan and -benzofurazan-3-oxide are formed; and upon reaction with acetoacetate, 8-ethoxycarbonyl-6-hydroxy-7-methylpyrrolo[2,3-e]benzofurazan and -benzofurazan-3-oxide are formed.
How to Cite
Samsonov, V. A.; Volodarskii, L. B. Chem. Heterocycl. Compd. 1993, 29, 1447. [Khim. Geterotsikl. Soedin. 1993, 1676.]
For this article in the English edition, see DOI https://doi.org/10.1007/BF00531409