申请人:Pugin Benoit
公开号:US20100029967A1
公开(公告)日:2010-02-04
Compounds of the formulae I and Ia in the form of mixtures of diastereomers or pure diastereomers, (I), (Ia), 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 sec-phosphino group; T is C
6
-C
20
-arylene or C
4
-C
18
-heteroarylene having heteroatoms selected from the group consisting of O, S, —N═ and N(C
1
-C
4
-alkyl); v is 0 or an integer from 1 to 4; X
1
is bound in the ortho position relative to the T-C* bond; Q is vinyl, methyl, ethyl, —CH
2
—OR, —CH
2
—N(C
1
-C
4
-alkyl)
2
or a C- or S-bonded chiral group which directs metals of metallation reagents into the ortho position; R is hydrogen, a silyl radical or an aliphatic, cycloaliphatic, aromatic or aromatic-aliphatic hydrocarbon radical which has from 1 to 18 carbon atoms and is unsubstituted or substituted by C
1
-C
4
-alkyl, C
1
-C
4
-alkoxy, F or CF
3
; are ligands for metal complexes as homogeneous catalyst in asymmetric syntheses.
公式I和Ia的化合物,以对映异构体的混合物或纯对映体的形式存在,其中R1为氢原子或C1-C4-烷基,R′1为C1-C4-烷基; X1和X2分别是独立的二级膦基团; T是C6-C20-芳基或C4-C18-杂芳基,其中杂原子选自O,S,—N═和N(C1-C4-烷基); v为0或1至4的整数; X1与T-C*键相对的正交位置结合; Q为乙烯基,甲基,乙基,—CH2—OR,—CH2—N(C1-C4-烷基)2或C-或S-键合的手性基团,可将金属化反应物导入正交位置; R为氢,硅基自由基或具有1至18个碳原子的脂肪族,环脂族,芳香族或芳香族-脂肪族碳氢基团,未取代或被C1-C4-烷基,C1-C4-烷氧基,F或CF3取代; 是金属络合物的配体,用于不对称合成中的均相催化剂。