Abstract
It was shown that ketonimines, which can have imine--enamine tautomerism, react with pyrylium salts in the enamined form. In such reactions, the 2-benzopyrylium salts are transformed into unsaturated ketones, and their monocyclic analogs are transformed into either quinolizinium salts or pyridinium salts depending on the structure of the initial imine.
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Additional information
For the Communication 44, cf. [1].
Scientific Research Institute (NII) of Physical and Organic Chemistry, Rostov State University, Roston-on Don 344104. Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 9 pp. 1176–1185, September, 1994. Original article submitted May 10, 1994.
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Tosunyan, D.É., Verin, S.V. & Kuznetsov, E.V. 2-benzopyrylium salts. 45. Interaction of 2-benzopyrylium salts and their monocyclic analogs with imines of ketones. Chem Heterocycl Compd 30, 1015–1023 (1994). https://doi.org/10.1007/BF01171155
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DOI: https://doi.org/10.1007/BF01171155