申请人:Lotz Matthias
公开号:US20080287698A1
公开(公告)日:2008-11-20
Compounds of the formula (I) or (I′), where R
1
is 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 secondary phosphine group; R
2
is hydrogen, R
01
R
02
R
03
Si—, C
1
-C
18
acyl substituted by halogen, hydroxy, C
1
-C
8
-alkoxy or R
04
R
05
N—, -or 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-oxapcntylene; 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
6
-C
20
-arylene; v is 0 or an integer from 1 to 4; and * denotes a mixture of racemic or enantiomerically pure diastereomers or pure racemic or enantiomerically diastereomers, are excellent chiral ligands for metal complexes as enantioselective catalysts for the hydrogenation of prochiral organic compounds.
式(I)或(I′)的化合物,其中R1是氢原子或C1-C4-烷基,R′1是C1-C4-烷基;X1和X2分别是次磷酸基团;R2是氢,R01R02R03Si—,C1-C18酰基取代的卤素、羟基、C1-C8烷氧基或R04R05N—,或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C6-C20芳基;v是0或1到4的整数;*表示混合的外消旋或对映纯二对映体或纯外消旋或对映纯二对映体,对于金属络合物作为催化剂,对非手性有机化合物的氢化反应具有优异的手性配体。