hydrogenchloride; trimethylsilyl trifluoromethanesulfonate 1.) dichloromethane, 0 deg C to room temperature, 2 h, 2.) dichloromethane, water; Yield given. Multistep reaction;

hydrogenchloride; N,O-bis-(trimethylsilyl)-acetamide; trimethylsilyl trifluoromethanesulfonate 1.) dichloromethane, 0 deg C, 30 min, 2.) dichloromethane, 0 deg C, 1 h, 3.) dichloromethane, water, 3 h; Yield given. Multistep reaction. Yields of byproduct given;