Electrochemical oxidation of trifluoroacetic acid anion.IV. Synthesis and stereochemistry of products of trifluoromethyl radical addition to some mono- and disubstituted olefins

The trifluoromethylation of mono- and disubstituted ethylene molecules was performed in good yields via the electrochemical oxidation of sodium trifluoroacetate. The relative quantities of monomeric and dimeric products are a function of the concentration of the substrate.The stereoisomers of the products were separated and identified and, when possible, their stereochemistry was determined by Hnmr and Fnmr spectroscopies.