(E,Z)-crotononitrile; ruthenium(II)-carbonyl-tris(triphenylphosphine) dihydride; 9,9-dimethyl-4,5-bis(diphenyl-phosphino)xanthene in neat (no solvent) T=120°C; 3 h; Microwave irradiationInert atmosphereSealed tube; chemoselective reaction;

trimethylsilyl trifluoromethanesulfonate in dichloromethane T=0°C; 4 h;