Sodium tnfluoroacetate

Aliphatic Ct, (A-dietus, activated with ester groups at both terminal positions, undergo tnfluoromethylation with cyclization durmg electrochemical oxidation with sodium tnfluoroacetate [79] (equation 70). 

Ullman type coupling occurs between aryl halides and trifluoromethyl copper species generated by the action of copper iodide on sodium tnfluoroacetate [168, 169] or on methyl fluorosulfonyldifluoroacetate [170] (equation 145) Similarly the pentafluoroethyl group can be introduced from potassium pentafluoropropion-ate [171] (equation 146)... 

Cheaper sources of tnfluoromelhyl groups have been the goal of several groups The use of sodium tnfluoroacetate and copper (1) iodide in dipolar aprotic solvents gave regiospecific trifluoromethylation of aromatic halides [202] (equation 136)... 

Trifluoromethylation of diethyl maleate or fumarate is performed via the electrochemical oxidation of sodium tnfluoroacetate [142] (equation 123)... 

Sodium nitrite in dimethylformamide acts as a nucleophile and reacts with perfluoropropene to generate a perfluoroalkyl nitrite anion The intermediate carbanion undergoes intramolecular nitrosation with loss of carbonyl difluoride to give tnfluoroacetic acid upon hydrolysis [5] (equation 6)... 

Although fluonnation of peroxoanions [oxygenated material is the preparation offluoroxy compounds The simplest, trifluoromethyl hypofluorite, can be prepared almost quantitatively by the action of fluorine on carbonyl fluoride (fluorophosgene) in the presence of various catalysts [ 5, 84] Addition of fluorine to tnfluoroacetic acid or its sodium salt [56] gives rise to F3CF(OF)2 Long-chain fluoroxy compounds can also... 

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