4-(N,N-dimethlyamino)pyridine; 2-chloro-1-(3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,12,12,12-henicosafluorododecyl)pyridinium trifluoromethanesulfonate; triethylamine in chloroform-d1 T=23°C; Mukaiyama condensation;

3,3-dimethyl-butan-2-one; ruthenium(II)-carbonyl-tris(triphenylphosphine) dihydride 3 h; Inert atmosphereReflux;

Irradiation;