Patent ID: 7902389

Claim:
A catalytic complex of the formula: wherein either or both of C 1 and C 2 are optionally absent; where M is Os or Ru; R and R 1 are independently selected from the group consisting of hydrogen, C 1 -C 20 alkyl, C 2 -C 20 alkenyl, C 2 -C 20 alkynyl, C 2 -C 20 alkoxycarbonyl, aryl, C 1 -C 20 carboxylate, C 1 -C 20 alkoxy, C 2 -C 20 alkenyloxy, C 2 -C 20 alkynyloxy, aryloxy, C 1 -C 20 alkylthio, C 1 -C 20 alkylsulfonyl, and C 1 -C 20 alkylsulfinyl, each R and R 1 optionally being substituted with C 1 -C 5 alkyl, halogen, C 1 -C 10 alkoxy, or with a phenyl group substituted with halogen, C 1 -C 5 alkyl or C 1 -C 5 alkoxy, or with a functional group; X and X 1 are independently selected from the group consisting of anionic ligands; and L and L 1 are nucleophilic carbenes, each nucleophilic carbene comprising a carbene carbon further bonded to two heteroatoms independently selected from the group consisting of oxygen and sulfur.