Abstract: The present invention provides ruthenium complexes of the formula wherein: X and X? denote an anionic ligand selected independently from the group consisting of anions of halogens, the phenolate anion (C6H5O?) the perfluorophenolate anion (C6F5O?), and residues of arylcarboxylic, alkylcarboxylic, perfluoroalkylcarboxylic, alkylsulphonic, arylsulphonic, or perfluoroalkylsulphonic acids; A denotes either nitrogen or carbon with an R5 group; R1 denotes hydrogen, C1-C5 alkyl, C2-C5 alkene or C3-C7 cycloalkyl; and R2, R3, R4, R5, R6, R7 denote independently hydrogen, C1-C25 alkyl, C1-C25 perfluoroalkyl, C5-C24 aryl, C2-C25 alkene, C3-C7 cycloalkyl, nitro (—NO2), cyano (—CN), formyl (—CHO), carboxyl (—COOH), or an ester (—COOR?), sulphone (—SO2R?), sulphonamide (—SO2NR?2), or ketone (—COR?) group, in which R? is a C1-C5 alkyl, C1-C5 perfluoroalkyl, or C5-C24 aryl group.

Abstract: The present invention provides ruthenium complexes of the formula wherein: X and X? denote an anionic ligand selected independently from the group consisting of anions of halogens, the phenolate anion (C6H5O?) the perfluorophenolate anion (C6F5O?), and residues of arylcarboxylic, alkylcarboxylic, perfluoroalkylcarboxylic, alkylsulphonic, arylsulphonic, or perfluoroalkylsulphonic acids; A denotes either nitrogen or carbon with an R5 group; R1 denotes hydrogen, C1-C5 alkyl, C2-C5 alkene or C3-C7 cycloalkyl; and R2, R3, R4, R5, R6, R7 denote independently hydrogen, C1-C25 alkyl, C1-C25 perfluoroalkyl, C5-C24 aryl, C2-C25 alkene, C3-C7 cycloalkyl, nitro (—NO2), cyano (—CN), formyl (—CHO), carboxyl (—COOH), or an ester (—COOR?), sulphone (—SO2R?), sulphonamide (—SO2NR?2), or ketone (—COR?) group, in which R? is a C1-C5 alkyl, C1-C5 perfluoroalkyl, or C5-C24 aryl group.

Abstract: The present invention provides ruthenium compounds of the formula The compounds of the invention occur in the form of two isomers: trans and cis. The method of production of the compounds according to the invention is based on reacting an intermediate of formula (5) with a carbene complex of ruthenium. The invention also relates to the use of the compounds according to the invention for carrying out metathesis reactions.

Abstract: The present invention relates to novel transition metal complexes of the formula (I) to a process for preparing these transition metal complexes and to the use of the transition metal complexes as catalysts in metathesis reactions.

Abstract: Complexes of ruthenium and osmium according to the invention are represented by formula (1), in which M denotes ruthenium or osmium, L denotes a neutral ligand selected from the group comprising amines, imines, phosphines (preferably stilbines, arsines, alcohols, thiols, ethers and thioethers or an N-heterocyclic carbene (NHC) ligand). The compounds of formula (1) occur in the form of two isomers: trans and cis. The method of production of complexes of ruthenium and osmium of formula (1) according to the invention is based on reacting an intermediate of formula (5) with a carbene complex of ruthenium or osmium. The invention also relates to the use of the complexes according to the invention for carrying out metathesis reactions.

Abstract: The present invention relates to novel transition metal complexes of the formula (I) to a process for preparing these transition metal complexes and to the use of the transition metal complexes as catalysts in metathesis reactions.