Chemistry of Heterocyclic Compounds p. 1447 - 1449 (1993)
Update date:2022-08-02
Topics:
Samsonov, V. A.
Volodarskii, L. B.
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.
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Doi:10.1002/ejoc.201301767
(2014)Doi:10.1016/j.dyepig.2020.108479
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