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Synthesis of pyrylium salts and pyridine bases by the bisacylation of cyclic tertiary alcohols

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Chemistry of Heterocyclic Compounds Aims and scope

Abstract

The catalytic acylation of 1-methyl- and 1-ethylcyclopentan-1-ols, 1-methyl- and 1-ethylcyclohexan-1-ols, 1-methylcycloheptan-1-ol, and 1-methyl- and 1-ethyl-1-tetralols with carboxylic acid anhydrides in the presence of 70% HClO4 has been studied. A method for the synthesis of substituted 3,4-cycloalkeno-3′,4′-dihydro(3,4∶2′, 1′)naphthopyrylium salts and the corresponding pyridine bases has been developed.

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Authors and Affiliations

  1. Rostov-on-Don State University, USSR

    G. N. Dorofeenko, Yu. A. Zhdanov & L. N. Étmetchenko

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  1. G. N. Dorofeenko
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  2. Yu. A. Zhdanov
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  3. L. N. Étmetchenko
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Dorofeenko, G.N., Zhdanov, Y.A. & Étmetchenko, L.N. Synthesis of pyrylium salts and pyridine bases by the bisacylation of cyclic tertiary alcohols. Chem Heterocycl Compd 5, 576–579 (1969). https://doi.org/10.1007/BF00957360

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