Abstract: The invention relates to a method for the preparation of cyclic compounds in the metathesis of olefins from acyclic dienes comprising terminal and/or non-terminal C?C double bonds; the invention also relates to the use of homogeneous ruthenium complexes and homogeneous ruthenium complexes deposited on a solid support as catalysts and/or pre-catalysts for the preparation of cyclic olefins in olefin metathesis reactions.

Abstract: The invention relates to a method for the preparation of cyclic compounds in the metathesis of olefins from acyclic dienes comprising terminal and/or non-terminal C?C double bonds; the invention also relates to the use of homogeneous ruthenium complexes and homogeneous ruthenium complexes deposited on a solid support as catalysts and/or pre-catalysts for the preparation of cyclic olefins in olefin metathesis reactions.

Abstract: The invention concerns the ruthenium complexes of the formula 1: acting as pre(catalysts) in the reaction of metathesis of olefins, as well as a method for their production, and their usage.

Abstract: Described herein are novel metal complexes, especially ruthenium complexes, represented by the formula (1): wherein L1 is a N-heterocyclic carbene ligand, L2 is a neutral phosphine ligand, preferably tricyclohexyl-phosphine, and process of catalyzing olefin metathesis reactions, especially tetra-substituted olefin metathesis reactions.

Abstract: The invention concerns the ruthenium complexes of the formula 1: acting as pre(catalysts) in the reaction of metathesis of olefins, as well as a method for their production, and their usage.

Abstract: The subject of the present invention are novel, chiral non-racemic ruthenium complexes defined by the general Formula 1, The present invention also relates to methods of manufacturing of a novel, chiral non-racemic ruthenium complexes defined by the general Formula 1 as well as their use in asymmetric olefin metathesis reactions.

Abstract: The subject of the present invention are novel metal complexes defined by Formula 1: The present invention also relates to methods of producing said novel metal complexes defined by Formula 1 as well as their uses.

Abstract: The object of the invention is a novel metal complex of the formula (1), the parameters of which are as defined in the description of the invention, as well as use of the metal complex of the formula (1) in the olefin metathesis reactions.

Abstract: Polyhedral oligomeric silsesquioxanes (POSS) linked ligand of the general formula (I) L[(R1a)n-1(SiO1,5)nR2a]k[(R1b)n-1SiO1,5)nR2b]l[(R1c)n-1SiO1,5)nR2c]m??(I) in which (R1a,b,c)n-1(SiO1,5)n is a polyhedral oligomeric silsesquioxanes (POSS) with n=4, 6, 8, 10, 12, 14, 16 or 18 and R1a, R1b, R1c is each independently selected from the group consisting of same or different branched or linear C1-C20 alkyl chains, cyclo alkyl, C1-C20 alkoxy, aryl, aryloxy, heteroaryl and arylalkyl groups, k, l, m is 0 or 1 provided that k+l+m?1, R2a, R2b, R2c is a spacer that binds the polyhedral oligomeric silsesquioxane (POSS) to the ligand L and ligand L is an uncharged electron donor.

Abstract: The present invention provides new ruthenium complexes of Formula (1), which contain a chelate ring created by a halogen atom X. The invention concerns also a method for the preparation of the new ruthenium complexes and their application in metathesis reactions.

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: Polyhedral oligomeric silsesquioxanes (POSS) linked ligand of the general formula (I) L[(R1a)n-1(SiO1,5)nR2a]k[(R1b)n-1SiO1,5)nR2b]l[(R1c)n-1SiO1,5)nR2c]m??(I) in which (R1a,b,c)n-1(SiO1,5)n is a polyhedral oligomeric silsesquioxanes (POSS) with n=4, 6, 8, 10, 12, 14, 16 or 18 and R1a, R1b, R1c is each independently selected from the group consisting of same or different branched or linear C1-C20 alkyl chains, cyclo alkyl, C1-C20 alkoxy, aryl, aryloxy, heteroaryl and arylalkyl groups, k, l, m is 0 or 1 provided that k+l+m?1, R2a, R2b, R2c is a spacer that binds the polyhedral oligomeric silsesquioxane (POSS) to the ligand L and ligand L is an uncharged electron donor.

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.

Abstract: The invention relates to new (pre)catalysts of ruthenium complexes of formula 1, wherein L1, X, X?, R1, R2, R3 and n are defined herein. The novel ruthenium complexes of formula 1 are convenient (pre)catalysts for metathesis reactions and can be applied, e.g., for ring-closing metathesis, cross metathesis or ene-ine metathesis reactions. Another aspect of the invention are the novel intermediates of formula 2.

Abstract: The invention relates to new (pre)catalysts of ruthenium complexes of formula 1, 1