Electrochemical Oxidative C-H Trifluoromethylation of Quinoxalin-2(1H)-ones and the Performance Evaluation via Electro-descriptors

An operationally simple electrochemical oxidative C-H trifluoromethylation of quinoxalin-2(1H)-ones was achieved by employing the inexpensive, readily available and easy processing CF3SO2Na as CF3 source. In the absence of any catalysts or oxidant reagents, this method is more in line with the requirements of green and sustainable development. Most importantly, "electric-descriptor-diagram" was used to evaluate the reaction substrates. The reactive/non-reactive boundary and the trend of yield change can been clearly seen.