Process for producing an optically active ruthenium-phosphine complex and process for producing an optically active alcohol by using the complex
申请人:——
公开号:US20010039354A1
公开(公告)日:2001-11-08
Provided is a process for preparing an optically active ruthenium-phosphine complex represented by the following formula (1):
1
wherein L represents a bidentate ligand compound of a tertiary phosphine; X represents a halogen atom; and * means chiral center (L* is an optically active substance), which comprises reacting a ruthenium-phosphine complex represented by:
Ru
m
X
n
L
p
A
q
or [RuX(D)(L)]X
wherein, X and L have the same meanings as described above (L is a racemic modification); A represents triethylamine (Et
3
N), etc.; and m, n, p and q each stands for an integer and D represents benzene, etc. with ½ equivalent of a specific optically active chiral diamine, thereby inactivating one of the enantiomers; and then with a specific optically active diamine derivative, thereby activating the other enantiomer.
提供了一种制备光学活性钌-膦配合物的方法,该配合物由以下式子(1)表示:
其中,L代表三级膦的双齿配体化合物;X代表卤素原子;*表示手性中心(L*为光学活性物质)。该方法包括反应由以下式子表示的钌-膦配合物:
RumXnLpAq或[RuX(D)(L)]X
其中,X和L的含义与上述相同(L是一个外消旋的改性);A代表三乙胺(Et3N)等;m、n、p和q各代表一个整数,D代表苯等。首先用特定的光学活性手性二胺的½当量反应,从而使其中一个对映体失活;然后再用特定的光学活性二胺衍生物反应,以激活另一个对映体。