tetrabutyl ammonium fluoride in tetrahydrofuran 20 h; Ambient temperature;

tetrafluoroboric acid in dichloromethane 0.166667 h;

pyridine; hydrogen fluoride T=25°C; electrochemical synthesis: Pt electrodes, applied potential 2.40 V, frequency square wave alternating current of 0.033 Hz, passed charge of 2.00 F mol-1; Yield given;

n-Bu4BF4 in N,N-dimethyl-formamide T=20°C; electrochemical reduction, various reaction conditions; Rate constantMechanism;