申请人:Kesselgruber Martin
公开号:US20090270622A1
公开(公告)日:2009-10-29
Compounds of the formula I or I′, where the radicals R
1
are each, independently of one another, a hydrogen atom or C
1
-C
4
-alkyl and R′
1
, is C
1
-C
4
-alkyl; X
1
and X
2
are each, independently of one another, a sec-phosphino group; R
2
is hydrogen, R
01
R
02
R
03
Si— is halogen-, hydroxyl-, C
1
-C
8
-alkoxy- or R
04
R
05
N-substituted C
1
-C
18
-acyl or is R
06
—X
01
—C(O)—; R
01
, R
02
and R
03
are each, independently of one another, C
1
-C
12
-alkyl, unsubstituted or C
1
-C
4
-alkyl- or C
1
-C
4
-alkoxy-substituted C
6
-C
10
-aryl or C
7
-C
12
-aralkyl; R
04
and R
05
are each, independently of one another, hydrogen, C
1
-C
12
-alkyl, C
3
-C
8
-cycloalkyl, C
6
-C
10
-aryl or C
7
-C
12
-aralkyl, or R
04
and R
05
together are trimethylene, tetramethylene, pentamethylene or 3-oxapentylene; R
06
is C
1
-C
18
-alkyl, unsubstituted or C
1
-C
4
-alkyl- or C
1
-C
4
-alkoxy-substituted C
3
-C
8
-cycloalkyl, C
6
-C
10
-aryl or C
7
-C
12
-aralkyl; X
01
is —O— or —NH—; T is C-bonded C
3
-C
20
-heteroarylene; v is 0 or an integer from 1 to 4; X
1
in the heteroring of the heteroarylene is bound in the ortho position relative to the T—C* bond; and * indicates a mixture of racemic or enantiomerically pure diastereomers or pure racemic or enantiomerically pure diastereomers. The compounds are excellent chiral ligands for metal complexes as enantioselective catalysts for the hydrogenation of prochiral organic compounds.
公式I或I'的化合物,其中基团R1分别是氢原子或C1-C4-烷基,R'1是C1-C4-烷基;X1和X2分别是sec-膦基团;R2是氢,R01R02R03Si—是卤素、羟基、C1-C8-烷氧基或R04R05N取代的C1-C18-酰基或是R06—X01—C(O)—;R01、R02和R03分别是C1-C12-烷基、未取代或C1-C4-烷基或C1-C4-烷氧基取代的C6-C10-芳基或C7-C12-芳基烷基;R04和R05分别是氢、C1-C12-烷基、C3-C8-环烷基、C6-C10-芳基或C7-C12-芳基烷基,或者R04和R05一起是三亚甲基、四亚甲基、五亚甲基或3-氧代戊亚甲基;R06是C1-C18-烷基,未取代或C1-C4-烷基或C1-C4-烷氧基取代的C3-C8-环烷基、C6-C10-芳基或C7-C12-芳基烷基;X01是—O—或—NH—;T是C键合的C3-C20-杂芳烃;v是0或1到4之间的整数;杂芳烃的异环中X1与T—C*键的正交位置相结合;*表示混合的外消旋或对映纯二对映异构体或纯外消旋或对映纯二对映异构体。这些化合物是金属配合物的优秀手性配体,用作对手性选择性催化剂,用于对不对称有机化合物的氢化。