Jp. Begue et al., ADDITION OF ORGANOLITHIUM REAGENTS TO ALPHA-(TRIFLUOROMETHYL)STYRENE - CONCISE SYNTHESIS OF FUNCTIONALIZED GEM-DIFLUOROALKENES, Journal of the Chemical Society. Perkin transactions. I, (12), 1996, pp. 1409-1413
The treatment of alpha-(trifluoromethyl)styrene with organolithium rea
gents results in the selective formation of gem-difluoroalkenes in goo
d-to-excellent yields. This reaction has been applied to the synthesis
of 3-gem-difluoro-2-phenylallylic amines and other functionalised gem
-difluoroalkenes.