Radical-type addition of benzyl bromide to vinyl chloride: the kinetics and activation energy of the process
作者:T. T. Vasil'eva、S. I. Gapusenko、A. B. Terent'ev、V. V. Pinyaskin、I. V. Stankevich、A. L. Chistyakov、E. I. Mysov
DOI:10.1007/bf00698942
日期:1993.5
Radical telomerization of vinyl chloride with benzyl bromide and the competitive reaction of benzyl bromide with vinyl chloride and trimethylvinylsilane have been studied. The relative rate constant for the addition of C6H5C · H2 to vinyl chloride,krel (with respect to trimethylvinylsilane), is close to unity, whereas the activation energy of the addition of C6H5C.H2 to vinyl chloride is considerably
研究了氯乙烯与苄基溴的自由基调聚反应以及苄基溴与氯乙烯和三甲基乙烯基硅烷的竞争反应。C6H5C·H2 添加到氯乙烯 krel 的相对速率常数(相对于三甲基乙烯基硅烷)接近 1,而 C6H5C·H2 添加到氯乙烯的活化能要低得多(7 kcal mol -1) 比在涉及三甲基乙烯基硅烷的反应中。自由基加成物 C6H5CH2CH2C.HCl 的可能碎裂被认为是低估 krel 的可能原因之一。活化能通过 MPDO/3 方法估算。