Patent ID: 7592498

Claim:
Process for preparing polymeric compounds, characterized in that compounds of the formula (IIIa) and/or (IIIb) where R 1 is cyclic, straight-chain or branched C 1 -C 20 -alkyl or C 5 -C 24 -aryl; L is an N-heterocyclic carbene ligand of the formula (II) where the direction of the arrow is intended to represent carbene electrons and the bond to M and where B is 1,2-ethanediyl or 1,2-ethenediyl radical which is optionally mono- or disubstituted by C 1 -C 4 -alkyl, C 6 -C 15 -arylalkyl, or C 5 -C 14 -aryl; and X 1 and X 2 are the same or different and are each chlorine, bromine or iodine, and ortho-arylene is an ortho-phenylene or ortho-naphthylene radical and said radicals may also be substituted by one, two, three or four radicals per cycle which are selected from the group of C 1 -C 4 -alkyl, C 5 -C 14 -aryl and C 1 -C 4 -alkoxy and Ar is C 5 -C 14 -aryl and R 12 , R 13 and R 14 are each independently C 1 -C 8 -alkyl or C 5 -C 14 -aryl are reacted with at least one compound of the formula (IV) where R 1 is defined above with respect to formula (IIIa) and/or formula (IIIb); R 2 , R 3 and R 4 are each independently hydrogen, C 1 -C 20 -alkyl, C 5 -C 24 -aryl, halogen, C 1 -C 4 -fluoroalkyl, C 1 -C 4 -alkoxy, C 5 -C 14 -aryloxy, (C 1 -C 8 -alkyl)OCO—, (C 1 -C 8 -alkyl)CO 2 —, (C 5 -C 14 -aryl)OCO— or (C 5 -C 14 -aryl)CO 2 — and/or in each case two radicals in an ortho-arrangement to one another from the group of R 2 , R 3 and R 4 are part of a cyclic system which consists of a carbon framework having 5 to 22 carbon atoms, one or more carbon atoms of the cyclic system optionally being replaced by heteroatoms from the group of sulphur, oxygen or nitrogen, and the cyclic system also being optionally mono- or polysubstituted by radicals selected from the group of halogen, C 1 -C 4 -fluoroalkyl, (C 1 -C 4 -alkyl)OCO—, (C 1 -C 8 -alkyl)CO 2 —, (C 6 -C 10 -aryl)OCO— or (C 5 -C 14 -aryl)CO 2 —; A is oxygen, sulphur, sulphoxyl, sulphonyl or CR 8 R 9 where R 8 and R 9 are each independently hydrogen or C 1 -C 4 -alkyl and D is C 1 -C 8 -alkylene, [(C 1 -C 8 -alkylene)-O—] n where n=1 to 12, (C 1 -C 8 -alkylene)CO 2 —, (C 1 -C 8 -alkylene)-OCO—(C 1 -C 8 -alkylene), (C 1 -C 8 -alkylene)CO 2 —(C 1 -C 8 -alkylene), (C 1 -C 8 -alkylene)CONR 10 —, (C 1 -C 8 -alkylene)NR 10 CO—, (C 1 -C 8 -alkylene)CONR 10 —(C 1 -C 8 -alkylene) or (C 1 -C 8 -alkylene)NR 10 CO—(C 1 -C 8 -alkylene) where R 10 is hydrogen or C 1 -C 4 -alkyl.