申请人:Kesselgruber Martin
公开号:US20070015925A1
公开(公告)日:2007-01-18
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 R
C
COO
−
, R
C
SO
3
−
, BF
4
−
, PF
6
−
, AsF
6
−
, SbF
6
−
, B(C
6
F
5
)
4
−
and B(3,5-bistrifluoromethylphenyl)
4
−
, are reacted with one another, where the ratio of the components a) and b) is from 1:1 to 1:2 and R
C
is C
1
-C
6
-haloalkyl, C
5
-C
10
-halocycloalkyl or C
6
-C
10
-haloaryl.
通过在惰性有机溶剂存在下反应金属配合物和二膦化合物制备催化剂溶液的过程,其特征在于a)为具有TM8金属为中心原子的不带电或阳离子金属配合物,b)为手性二叔丁基二膦酸盐的盐,其具有一个或两个与含有2至4个碳原子的碳链结合的磷杆环基团并含有从RCCOO−,RCSO3−,BF4−,PF6−,AsF6−,SbF6−,B(C6F5)4−和B(3,5-双三氟甲基苯基)4−等离子体中选择的阴离子,其中a)和b)的组分比为1:1至1:2,其中RC为C1-C6卤代烷基,C5-C10卤代环烷基或C6-C10卤代芳基。