Patent ID: 7214748

Claim:
Process for the production of a catalyst comprising the steps a) dissolution of compounds of the general formula (I) in a non-polar solvent, wherein Nu 1 , Nu 2 independently of each other stand for —O, —S, —Se, —PR a , —NR a , or —COO groups where R a is hydrogen, substituted or unsubstituted alkyl- or aryl groups and J is an element selected from the 1 st or 2 nd main group of the periodic table R, R 1 , R 2 and R 3 are the same or different groups, which are selected independently of each other from the group consisting of H, halogens, substituted or unsubstituted C 1 –C 8 alkyl-, C 2 –C 8 alkenyl-, C 3 –C 12 cycloalkyl-, C 7 –C 13 aralkyl- and C 6 –C 14 aryl groups and R 1 can form a ring with R 2 or R 3 and R 2 can form a ring with R 3 ; b) dissolution of a metal compound of the general formula (II) M(L 1 ) W (L 2 ) Y (L 3 ) Z (II) in a polar solvent, wherein M stands for an element of the 4 th –12 th sub-group of the periodic table, L 1 is a neutral ligand, L 2 , L 3 are an anionic ligand, and L 1 and/or L 2 with L 3 can be linked to each other by one or more covalent bonds and W can be an integer from 0 to 3, Y can be an integer from 0 to 3 and Z can be an integer from 0 to 3, wherein if one of the three variables W, Y or Z=0, the sum of the two remaining variables is equal to 2, 3 or 4; c) mixing of solutions a) and b).