Photocatalytic Alkene Reduction By A B-12-Tio2 Hybrid Catalyst Coupled With C-F Bond Cleavage For Gem-Difluoroolefin Synthesis

Photocatalytic syntheses of gem-difluoroolefins were performed using the B-12-TiO2 hybrid catalyst during the C=C bond reduction of alpha-trifluoromethyl styrenes with C-F bond cleavage at room temperature under nitrogen. The gem-difluoroolefins were used as synthetic precursors for fluorinated cyclopropanes.