The Barbier- or Grignard-type reaction of vinyl iodides with ketones or aldehydes proceeds on treatment with samarium diiodide in benzene containing hexamethylphosphoric triamide (HMPA) to afford the corresponding coupling compounds (allyl alcohols). The reaction was shown to involve vinyl samariums as an intermediate.
乙烯碘化物与酮或醛的巴尔比尔(Barbier)或格里尼亚(Grignard)反应在与二
碘化钐和含有六甲基
磷酸三酰胺(HMPA)的苯溶剂处理下进行,从而生成相应的偶联化合物(
烯丙醇)。研究表明该反应涉及
乙烯基钐作为中间体。