作者:Lei Wang、Robert A. Moss、Karsten Krogh-Jespersen
DOI:10.1016/j.tetlet.2016.08.001
日期:2016.9
Activation energies were determined for the additions of three arylhalocarbenes to tetramethoxyethylene (TMeOE) and tetramethylethylene (TME) in pentane and decane. For addition of 3,5-dinitrophenylchlorocarbene to TMeOE in decane, Ea = −10.4 ± 0.7 kcal/mol, the most negative activation energy yet encountered in a carbene–alkene addition reaction. Computational studies parallel and elucidate the experimental
确定了在戊烷和癸烷中向四甲氧基乙烯(TMeOE)和四甲基乙烯(TME)中添加三种芳基卤代卡宾的活化能。对于在癸烷中的TMeOE中添加3,5-二硝基苯基氯卡宾,E a = -10.4±0.7 kcal / mol,这是卡宾-烯烃加成反应中遇到的最负的活化能。计算研究平行并阐明了实验结果。