| abstract |
The invention comprises novel chiral metal complex compounds of the formula n n n n n n n n n n wherein M, PR 2 , R 3 and R 4 are outlined in the description, its stereoisomers, in the form as a neutral complex or a complex cation with a suitable counter ion. The chiral metal complex compounds can be used in asymmetric reactions, particularly in asymmetric reductions of ketones, imines or oximes. |