| 卤代烷基铝的合成及机理 |
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| 引用本文： | 韩亚晓,高建峰,杨宁,王瑞芳.卤代烷基铝的合成及机理[J].山西化工,2013(4):8-10,14. |
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| 作者姓名： | 韩亚晓 高建峰 杨宁 王瑞芳 |
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| 作者单位： | 中北大学理学院化学系 |
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| 摘 要： | 以铝和溴乙烷为原料制备溴代烷基铝，氯化铝和碘为引发剂，39℃下搅拌15rain引发。引发机理为：微量水存在时，氯化铝水解的酸性环境破坏铝表面氧化膜；同时，碘取代溴得到更活泼的卤代烃。反应机理为：铝向卤代烃提供单电子生成含铝的自由基，自由基结合生成卤代烷基铝。
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| 关 键 词： | 卤代烷基铝 引发 合成 机理 |
Synthesis and mechanism of halogenated alkylaluminum |
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| HAN Ya-xiao;GAO Jian-feng;YANG Ning;WANG Rui-fang.Synthesis and mechanism of halogenated alkylaluminum[J].Shanxi Chemical Industry,2013(4):8-10,14. |
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| Authors: | HAN Ya-xiao;GAO Jian-feng;YANG Ning;WANG Rui-fang |
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| Affiliation: | HAN Ya-xiao;GAO Jian-feng;YANG Ning;WANG Rui-fang;Department of Chemistry,College of Science,North University of China; |
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| Abstract: | In this paper, alkyl aluminum is prepared by aluminum bromide and ethyl bromide, stirred at 39 ~C by 15 min with alumi- num chloride and iodine. The trigger mechanism are： with traces of water, acidic environment of hydrolysis of aluminum chloride dam- age surface oxide film, while bromine is substituted for iodine for more active halogenated hydrocarbon. Reaction mechanism are： alu- minum provides single electron to halogenated hydrocarbon to generate free radicals containing aluminum, then free radicals combine with each other to produce halogenated alkyl aluminum. |
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| Keywords: | halogenated alkylaluminum initiation synthesis mechanism |
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