Abstract
It was observed that the disproportionation of 2-benzopyrylium salts proceeds through prior dimerization. Intermediates were isolated and identified. Assumptions regarding the mechanism of the transformation are expressed.
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I. V. Shcherbakova, S. V. Verin, and E. V. Kuznetsov, Khim. Prir. Soedin., No. 1, 75 (1989).
Yu. A. Zhdanov, S. V. Verin, I. V. Korobka, and E. V. Kuznetsov, Khim. Geterotsikl. Soedin., No. 9, 1185 (1988).
E. V. Kuznetsov, D. V. Pruchkin, A. I. Pyshchev, and G. N. Dorofeenko, Khim. Geterotsikl. Soedin., No. 10, 1320 (1978).
V. M. Vlasov, Zh. Vses. Khim. Obshch., 15, 708 (1978).
A. T. Balaban, Tetrahedron Lett., 599 (1978).
M. G. Farooq, W. Rahman, and M. Ilyas, Chem. Ber., 92, 2555 (1959).
J. W. Bunting, Adv. Heterocycl. Chem., 25, 1 (1979).
L. Jurd, Tetrahedron, 28, 493 (1972).
T. Omoto, J. Pharm. Soc. Jn., 80, 137 (1960).
J. M. Hornback, J. Org. Chem., 45, 3524 (1980).
G. N. Dorofeenko, G. P. Safaryan, and E. V. Kuznetsov, Khim. Geterotsikl. Soedin., No. 8, 1013 (1970).
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See [1] for Communication 35.
Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 6, pp. 750–754, June, 1989.
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Verin, S.V., Kuznetsov, E.V. & Zhdanov, Y.A. 2-Benzopyrylium salts. 36. Disproportionation of 2-benzopyrylium salts through prior 4-1′ dimerization. Chem Heterocycl Compd 25, 617–621 (1989). https://doi.org/10.1007/BF00470017
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DOI: https://doi.org/10.1007/BF00470017