triphenylmethane tetrafluoroborate in dichloromethane T=25°C; 0.166667 h;

hydrogenchloride in tetrahydrofuran 2 h; other hydrolysis conditions; comparison of rates of hydrolysis with the corresponding trimethylsilyl and tert-butyldimethylsilyl enol ethers;

triphenylmethane tetrafluoroborate in dichloromethane T=25°C; 0.166667 h;