トリフェニルホスフィン/四塩化炭素を用いるニトロアルカンからニトリルの合成

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  • Synthesis of Nitrites from Nitroalkanes Using Triphenylphosphine/Carbon Tetrachloride

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The direct synthesis of nitriles [1] J has been carried out by the reaction of nitroalkanes with triphenylphosphine/carbon tetrachloride in the presence of triethylamine. The yields of [1] were 60-98%, and the presence of ethyl acrylate in this system gave a mixture of [1]and 2-isooxazoline derivatives [3]. On the basis of these results, it is concluded that the reaction proceeds through nitrile oxide [2], which is formed as an intermediate by the elimination of water from nitroalkane with triphenylphosphin/icarbon tetrachloride and then gives [1] by the deoxidation with excess triphenylphosphine.

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