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Phosphonic acid mediated practical dehalogenation and benzylation with benzyl halides

机译:膦酸介导的实用脱卤和苄基卤化物的苄基

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摘要

For the first time, by using H _(3) PO _(3) /I _(2) system, various benzyl chlorides, bromides and iodides were dehalogenated successfully. In the presence of H _(3) PO _(3) , benzyl halides underwent electrophilic substitution reactions with electron-rich arenes, leading to a broad range of diarylmethanes in good yields. These transformations feature green, cheap reducing reagents and metal-free conditions. A possible mechanism was proposed.
机译:首次使用H _(3)PO _(3)/ I _(2)系统,成功脱卤化苄基氯化物,溴化物和碘化物。在H _(3)PO _(3)的存在下,苄基卤化物接受了电泳取代反应与电子富有的芳烃,导致具有良好产率的广泛的二芳基甲烷。这些转化具有绿色,廉价的减少试剂和无金属条件。提出了一种可能的机制。

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