Abstract
The condensation of 1-alkyl-3-carbalkoxy-2-benzopyrylium salts with diamines leads to the synthesis of piperazino[3,4-b]- and quinoxalino[3,4-b]isoquinolinium perchlorates.
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See [1] for communication XV.
Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 3, pp. 342–344, March, 1974.
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Dorofeenko, G.N., Korobkova, V.G. 2-Benzopyrylium salts. Chem Heterocycl Compd 10, 296–298 (1974). https://doi.org/10.1007/BF00472413
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DOI: https://doi.org/10.1007/BF00472413