Patent ID: 7838711

Claim:
A process for carrying out a metathesis reaction, wherein the metathesis reaction is carried out continuously and a ruthenium-containing catalyst of formula 1 is used for the reaction: wherein X and X′ denote anionic ligands; L denotes a neutral ligand; a, b, c, d independently of one another denote —CO—R 3 , —SO 2 —R 4 or —PO(R 5 ) 2 , H, halogen, NO 2 , C 1-6 -alkyl, C 1-6 -alkoxy or aryl, while aryl is optionally substituted by a group selected from among C 1-6 -alkyl and C 1-6 -alkoxy; R 1 denotes C 1-6 -alkyl, C 1-6 -haloalkyl, C 3-6 -cycloalkyl, C 7-18 -aralkyl or a group of formula 1a, wherein the asterisk indicates the point of attachment to the molecule and R 11 denotes C 1-6 -alkyl, C 3-6 -cycloalkyl, C 7-18 -aralkyl, or aryl; R 12 denotes H, C 1-6 -alkyl, C 3-6 -cycloalkyl, C 7-18 -aralkyl, or aryl; R 2 denotes H, C 1-6 alkyl, C 2-6 -alkenyl, C 2-6 -alknyl or aryl; R 3 denotes C 1-6 -alkyl or C 3-6 -cycloalkyl, both optionally substituted by one or more groups selected independently of one another from among F, Cl, Br, I or C 1-6 -alkoxycarbonyl, or aryl or heteroaryl both optionally being substituted by one or more groups selected independently of one another from among F, Cl, Br, I, C 1-6 -alkyl, C 1-6 -alkoxy, NO 2 , CN, CF 3 , OCF 3 or C 1-6 -alkoxycarbonyl; R 4 denotes C 1-6 -fluoroalkyl, aryl or heteroaryl, wherein aryl or heteroaryl in each case may be substituted by one or more groups selected independently of one another from among F, Cl, Br, I, C 1-6 -alkyl, C 1-6 -alkenyl, C 1-6 -alkoxy, NO 2 , CN, CF 3 , OCF 3 , C 1-6 -alkoxycarbonyl, SO 2 —C 1-6 -alkyl or SO 2 -aryl; R 5 independently of one another are C 1-6 -alkyl, C 3-6 -cycloalkyl, aryl or heteroaryl, wherein aryl or heteroaryl may each be substituted by one or more groups selected independently of one another from among F, Cl, Br, I, C 1-6 -alkyl, —C 1-6 -alkoxy, NO 2 , CN, CF 3 , OCF 3 , C 1-6 -alkoxycarbonyl; or R 3 , R 4 and R 5 independently of one another are a group of formula 1b, wherein the asterisk indicates the point of attachment to the molecule wherein X 1 and X 1 denote anionic ligands; L′ denotes a neutral ligand; R 1′ denotes C 1-6 -alkyl, C 1-6 -haloalkyl, C 3-6 -cycloalkyl or —C 7-18 -aralkyl; R 2′ denotes H, C 1-6 -alkyl, C 2-6 -alkenyl, C 2-6 -alkynyl or aryl; R′ denotes C 1-6 -alkyl, C 1-6 -alkoxy, aryl, halogen or NO 2 ; and n′ denotes 0, 1, 2 or 3.