We commenced our investigation by evaluating the difluoroallylation of 1-cyclohexylethan-1-one derived dihydroquinazolinone 2a with α-trifluoromethyl styrene 3a, wherein 2a could be readily synthesized on large scale by reacting cyclohexyl methyl ketone 1a with 2-aminobenzamide (2-AB). As depicted in Table , a combination of 4CzIPN as photocatalyst and CsF as base in DMF under blue light-emitting diode (LED) irradiation at room temperature afforded the best Table . Investigation of Reaction Conditions.