Abstract
The reactions of various pyrylium salts with N-methylindole and dimethylaniline were studied. It is shown that the reactions are not restricted to electrophilic substitution but that hydride transfer to form a new pyrylium salt also occurs. The effect of anions on the character of the pyrylation is examined. The IR spectra of the compounds synthesized are presented.
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S. V. Krivun, Dokl. Akad. Nauk SSSR, 180, 615 (1968).
E. B. Wilson, Phys. Rev., 45, 706 (1934).
A. T. Balaban, J. Mateescu, and M. Ellian, Tetrahedron, 18, 1083 (1962).
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Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 1, pp. 14–16, January, 1971.
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Krivun, S.V. Electrophilic substitution by pyrylium salts. Chem Heterocycl Compd 7, 11–13 (1971). https://doi.org/10.1007/BF00477935
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DOI: https://doi.org/10.1007/BF00477935