| abstract |
Process for preparing a catalyst solution by reacting metal complexes and diphosphines in the presence of an inert organic solvent, which is characterized in that a) an uncharged or cationic metal complex having a TM8 metal as central atom, and b) a salt of a chiral ditertiary diphosphine which has one or two phospholane groups which are bound to a carbon chain having from 2 to 4 carbon atoms and contain anions selected from the group consisting of RCCOO-, RCSO3-, BF4-, PF6-, AsF6-, SbF6-, B(C6F5)4- and B(3,5-bistrifluoromethylphenyt)4-, are reacted with one another, where the ratio of the components a) and b) is from 1 : 1 to 1 : 2 and RC is C1-C6-haloalkyl, C5-C10-~halocycloalkyl or C6-C10-haloaryl. |