The reaction of benzotrihalides and benzal halides with magnesium. Synthetic and mechanistic studies
作者:E.C. Ashby、Dheya M. Al-Fekri
DOI:10.1016/0022-328x(90)85094-f
日期:1990.7
= Cl, Br, and F were allowed to react with magnesium in THF at room temperature. When the halide was chloride or bromide, the trihalide gave diphenylacetylene in high yield in addition to several minor products which were identified. No reaction was observed when the halide was fluoride. When the corresponding dichloride was allowed to react with magnesium in THF, stilbene was formed as the major product
X = Cl,Br和F的苯并三卤化物(PhCX 3)在室温下与镁在THF中反应。当卤化物是氯化物或溴化物时,三卤化物除了鉴定出几种次要产物外,还以高收率得到了二苯乙炔。当卤化物是氟化物时,没有观察到反应。当使相应的二氯化物与镁在THF中反应时,形成为主要产物。讨论了这些反应的可能机理。