1: 5-cyclohexyl-5,6-dihydrobenzo[e]pyrazolo[1,5-c][1,3,2]diazaborinine; dimethylphenylsilane With norborn-2-ene; ruthenium(II)-carbonyl-tris(triphenylphosphine) dihydride in toluene T=160°C; 24 h; Inert atmosphere; 2: 2,3-dimethylbutane-2,3-diol With toluene-4-sulfonic acid in tetrahydrofuran; toluene T=20°C; 1 h; Inert atmosphere;

norbornene; ruthenium(II)-carbonyl-tris(triphenylphosphine) dihydride in neat (no solvent) boron compd., RuH2(CO)(PPh3)3, norbornene, silane heated (160°C, 24 h), treated with pinacol and TsOH in THF at room temp. for 1 h; NMR;