Abstract
α-Veratrylindanones were obtained by reaction of α-veratrylcinnamic acid with veratrole in polyphosphoric acid (PPA). A method for the synthesis of indeno-2-benzopyrylium salts based on acylation of the indanones with the free acids and their anhydrides was developed. It was shown that indeno-2-benzopyrylium salts can be converted to the little-studied indeno[1,2-c]isoquinoline bases.
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See [1] for communication XIV.
Translated from Khimiya Geterotsiklicheskii Soedinenii, No. 2, pp. 181–183, February, 1974.
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Kuznetsov, E.V., Pruchkin, D.V., Bicherov, A.V. et al. 2-Benzopyrylium salts. Chem Heterocycl Compd 10, 158–160 (1974). https://doi.org/10.1007/BF00487770
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DOI: https://doi.org/10.1007/BF00487770