sodium hydroxide T=120°C; 6 h;

in ethanol 15 h; Ambient temperature;

in N,N-dimethyl-formamide T=35°C; Inert atmosphere;

in acetonitrile electrolysis: stirred mercury pool as the working electrode, SCE as the reference electrode, platinum sheet as the auxiliary electrode, Et4N(+)ClO4(-) as the supporing electrolyte, -1.10 V vs SCE; Yields of byproduct given;

in dimethyl sulfoxide 0.5 h; Ambient temperaturevarious per(chloro,fluoro)ethanes and conditions; Product distributionMechanism;