Highly Reactive Manganese(IV)-Oxo Porphyrins Showing Temperature-Dependent Reversed Electronic Effect in C–H Bond Activation Reactions
作者:Mian Guo、Mi Sook Seo、Yong-Min Lee、Shunichi Fukuzumi、Wonwoo Nam
DOI:10.1021/jacs.9b04496
日期:2019.8.7
MnIV(O)(TMP) (1) and MnIV(O)(TDCPP) (2), are capable of activating the C-H bonds of hydrocarbons, including unactivated alkanes such as cyclohexane, via an oxygen non-rebound mechanism. Interestingly, 1 with an electron-rich porphyrin is more reactive than 2 with an electron-deficient porphyrin at a high temperature (e.g., 273 K). However, at a low temperature (e.g., 233 K), the reactivity of 1 and 2 is