SRN1 reaction of 2,2,2-trifluoroethyl halides with carbanion

In organic chemistry, the radical nucleophilic substitution of alkyl halides or S(RN)1 mechanism is one of the most important parts of single electron-transfer (SET) reaction 2, 2, 2-trifluoroethyl iodide, bromide, chloride except fluoride reacted with carbanion in DMF under laboratory illumination at a specified temperature for 12 h to give the 2, 2, 2-trifluoroehtyl derivatives and coupling. products of two R1R2R3C-. The acceleration by UV irradiation, suppression by p-dinitrobenzene or hydro-quinone showed that the reactions occurred by SRN1 mechanism. The initiation step may be spontaneous or thermal electron transfer between carbanion and halides because the reactions could occur in dark.