Abstract
The reaction of 2-dicyanomethyleneindan-1,3-dione with pyrrole, indole, and their methyl derivatives gives products of addition at the dicyanomethylene carbon atom, viz., pyrrolyl- and indolyl(1,3-dioxo-2-indanyl)malononitriles, which upon heating or irradiation with UV light irreversibly split out HCN to give deeply colored products of replacement of the nitrile group in the acceptor by a heterocyclic grouping. Data from the UV and PMR spectra of the compounds obtained are presented.
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Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 4, pp. 500–503, April, 1982.
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Bespalov, B.P., Abolin, A.G. Reaction of 2-dicyanomethyleneindan-1,3-dione with pyrroles and indoles. Chem Heterocycl Compd 18, 379–382 (1982). https://doi.org/10.1007/BF00503557
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DOI: https://doi.org/10.1007/BF00503557