Reactions of 4H-pyran-4-thiones with ammonia, hydrazine, and guanidine.
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概要
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The reaction of 4<I>H</I>-pyran-4-thiones with ammonia gave 4(1<I>H</I>)-pyridinethiones or bis(4-pyridyl) disulfide, while that of 3-methoxy-2-methyl-4<I>H</I>-pyran-4-thione with guanidine gave the 1,3-thiazine derivative. 4<I>H</I>-Pyran-4-thiones reacted with hydrazine to afford pyridazines, pyrazoles, and 1-amino-4(1<I>H</I>)-pyridinethiones. 4<I>H</I>-Pyran-4-thiones having the hydroxyl group in the β-position gave the pyridazine derivatives.
- 公益社団法人 日本化学会の論文
著者
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IMAFUKU Kimiaki
Department of Chemistry, Faculty of Science, Kumamoto University
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Matsumura Hisashi
Department of Chemistry, Faculty of Science, Kumamoto University
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Besso Hiromichi
Department of Chemistry, Faculty of Science, Kumamoto University
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