Patent ID: 7141687

Claim:
An N′-substituted N-acylamidine-transition metal complex of the general formula I where M is a transition metal selected from the group of the metals Ni, Cu, Ru, Rh, Pd, Os, Ir and Pt X is Cl, Br, triflate, methanesulfonate or p-toluenesulfonate m is 0, 1 or 2, n is 1, 2 or 3 and the radicals are defined as follows: R 1 , R 2 are each a straight-chain, branched or cyclic hydrocarbon radical having from 1 to 20 carbon atoms which may be mono- or polyunsaturated, an aromatic radical having from 6 to 14 ring members which may be bonded directly or via a C 1 - to C 6 -alkyl or C 2 - to C 6 -alkylene group, and the radicals mentioned may bear one or more substituents selected from the group of C 1 - to C 6 -alkyl, C 1 - to C 4 -haloalkyl, OR 3 , NR 4 R 5 , COOR 6 , Si(R 7 ) 3 , Si(R 7 ) 2 R 8 , halogen, aryl, C 3 –C 8 -cycloalkyl, R 3 , R 6 , R 8 are each independently C 1 - to C 12 -alkyl, C 7 - to C 12 -aralkyl, C 6 - to C 10 -aryl, C 3 -to C 8 -cycloalkyl, C 3 - to C 8 -cycloalkyl in which one CH 2 group has been replaced by O, NH or NR 9 , R 4 , R 5 , R 10 , R 11 are each independently hydrogen, straight-chain or branched C 1 - to C 12 -alkyl, C 7 - to C 12 -aralkyl, C 6 - to C 10 -aryl, C 3 - to C 8 -cycloalkyl or C 3 - to C 8 -cycloalkyl in which one CH 2 group has been replaced by O, NH or N 9 , and R 4 and R 5 and/or R 10 and R 11 may each together be —(CH 2 ) y —, where y is an integer from 4 to 7; R 7 , R 9 are each independently straight-chain or branched C 1 - to C 12 -alkyl or C 7 - C 12 -aralkyl, Ar is C 6 –C 10 -aryl or hetaryl having from 5 to 10 ring members, and the radicals mentioned may be substituted by C 1 - to C 6 -alkyl, C 1 - to C 4 -haloalkyl, NR 10 R 11 , COOR 6 , Si(R 7 ) 3 , Si(R 7 ) 2 R 8 , OR 3 and/or halogen.