Reaction of trisubstituted cyclic olefins with NaN3 in the presence of
Cu(OTf)(2) upon irradiation under oxygen gave keto nitriles in good y
ields. 1,5-Dimethyl-1,5-cyclooctadiene and 1,5,9-trimethyl-1,5,9-cyclo
dodecatriene were converted into the corresponding unsaturated keto ni
triles.