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Photoreaction between dicyanobenzenes and a hypervalent allylsilicon reagent using 2,3-dihydroxynaphthalene as a ligand on silicon efficiently proceeded to afford allyl-substituted benzonitriles in moderate to good yields. The present photoreaction was found to occur based on the excitation of the hypervalent allylsilicon reagent. [ABSTRACT FROM AUTHOR]

Photosubstitution of dicyanoarenes with hypervalent allylsilicon reagents in the presence of anthracene efficiently proceeded to afford the allyl-substituted product in moderate to good yields. The efficiency for the present photoreaction was much higher than that for the tetracoordinate allylsilanes, because hypervalent allylsilicon reagents possess lower oxidation potential than the tetracoordinate ones, which resulted in more efficient photoinduced electron-transfer process. [ABSTRACT FROM AUTHOR]