The reaction of 2,4,6-triphenyl-1,3-thiazinylium perchlorate with active methylenes.

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概要

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• The reaction of 2,4,6-triphenyl-1,3-thiazinylium perchlorate (<B>4</B>) with several active methylenes was studied. Methyl cyanoacetate or benzoylacetonitrile reacted with <B>4</B> to give 3-cyano-2,4,6-triphenylpyridine, while malononitrile led to 1-mercapto-1,3-diphenyl-4,4-dicyanobutadiene and cyanoacetamide led to 2-hydroxy-3-cyano-4,6-diphenyl-pyridine. The reaction of diethyl malonate, nitromethane, or nitroethane with <B>4</B> gave 2-[bis(ethoxycarbonyl)methyl]-, 2-nitromethyl- or 2-(1-nitroethyl)-2,4,6-triphenyl-2<I>H</I>-1,3-thiazine respectively. These results showed that the reaction manner of <B>4</B> to these active methylenes is significantly different from that of 2,4,6-triphenyl-1,3-oxazinylium salt.

• 公益社団法人 日本化学会の論文

著者

• Shibuya Isao

  National Chemical Laboratory for Industry

• Shibuya Isao

  National Chemical Laboratory for Industry (Tsukuba Research Center)

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• Decomposition reaction of 3-aryl-6-disubstituted amino-1,4,2,5-dithiadiazines in the solid state.
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• The reaction of 3,5-diphenyl-1,2-dithiolium perchlorate with active methylenes.
• The reaction of 2,4,6-triphenyl-1,3-thiazinylium perchlorate with active methylenes.

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