Synthesis of pyrylium salts and pyridines containing heterocyclic substituents |
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Authors: | G N Dorofeenko G A Korol'chenko S V Krivun |
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Institution: | (1) Rostov -on-Don State University, USSR |
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Abstract: | A method of synthesizing pyrylium salts with heterocyclic substituents in the ring, has been investigated. The synthesis was carried out in two stages: alkaline condensation of aromatic and heterocyclic aldehydes with methyl ketones to give 1, 5-diketones, followed by cyclization to pyrylium salts by treatment with triphenylmethyl perchlorate. Pyridines containing heterocyclic substituents were obtained by treating the pyrylium salts with ammonia. |
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