Free radical and isomerisation processes during the electrochemical fluorination of n-butyryl chloride, i-butyryl chloride and pivaloyl chloride in anhydrous hydrogen fluoride
作者:D. Velayutham、K. Jayaraman、K. Kulangiappar、N. Ilayaraja、Y. Ram Babu、P. Santhan Rao、S. Narayana Reddy、K. Victor Babu、M. Noel
DOI:10.1016/j.jfluchem.2006.05.018
日期:2006.8
Electrochemical perfluorination (ECPF) of the title compounds containing primary, secondary and tertiary carbon atoms was carried out in anhydrous hydrofluoric acid (AHF). Detailed analysis of major and minor products suggest that carbon chain isomerisation involving cyclo-propane intermediate is more prevalent during ECPF of i-butyryl chloride when compared to n-butyryl chloride. Simple statistical
含有伯,仲和叔碳原子的标题化合物的电化学全氟化(ECPF)在无水氢氟酸(AHF)中进行。的主要和次要产品的详细分析表明涉及该碳链异构化环丙烷中间体是ECPF期间更普遍的我相比时-丁酰基氯化物ñ -丁酰基氯化物。涉及自由基中间体的简单统计概率也支持该观察。涉及环丙烷中间体的ECPF在含有三个甲基取代基的新戊酰氯中更为普遍。在这种情况下,全氟环产品样品中也观察到了丙烷中间体。次要全氟化和部分氟化产物的分布也表明,正常的自由基途径主要涉及单电子转移。