申请人:BOREALIS AG
公开号:US20160002369A1
公开(公告)日:2016-01-07
An asymmetric complex of formula (I)
wherein
M is zirconium or hafnium;
each X is a sigma ligand;
L is a divalent bridge selected from —R′
2
C—, —R′
2
C—CR′
2
—, —R′
2
Si—, —R′
2
Si—SiR′
2
—, —R′
2
Ge—, wherein each R′ is independently a hydrogen atom, C1-C20-alkyl, tri(C1-C20-alkyl)silyl, C6-C20-aryl, C7-C20-arylalkyl or C7-C20-alkylaryl;
R
2
and R
2′
are each independently a C
1
-C
20
hydrocarbyl radical;
R
5′
is a C
1-20
hydrocarbyl group;
R
5
is hydrogen, or a C
1-20
hydrocarbyl group;
R
6
is a non tertiary C
1-10
alkyl group or C6-10-aryl group or C7-10 arylalkyl group or ZR
3
;
R
6′
is a tertiary C
4-20
alkyl group;
Z is O or S;
R
3
is a C1-20 hydrocarbyl group optionally substituted with halo;
Ar is an aryl or heteroaryl group having up to 20 carbon atoms optionally substituted by one or more groups R
1
;
Ar′ is an aryl or heteroaryl group having up to 20 carbon atoms optionally substituted by one or more groups R
1
;
each R
1
is a C
1-20
hydrocarbyl group or two R
1
groups on adjacent carbon atoms taken together can form a fused 5 or 6 membered ring with the Ar group, said ring being itself optionally substituted with one or more groups R
4
; and
each R
4
is a C
1-20
hydrocarbyl group.
式(I)的不对称配合物,其中M为锆或铪;每个X为σ配体;L为从—R′2C—,—R′2C—CR′2—,—R′2Si—,—R′2Si—SiR′2—,—R′2Ge—中选择的二价桥,其中每个R′独立地为氢原子,C1-C20烷基,三(C1-C20烷基)硅基,C6-C20芳基,C7-C20芳基烷基或C7-C20烷基芳基;R2和R2′各自独立地为C1-C20烃基基团;R5′为C1-20烃基基团;R5为氢或C1-20烃基基团;R6为非三级C1-10烷基基团或C6-10芳基基团或C7-10芳基烷基基团或ZR3;R6′为三级C4-20烷基基团;Z为O或S;R3为C1-20烃基基团,可选地被卤素取代;Ar为具有多达20个碳原子的芳基或杂环芳基,可选地被一个或多个基团R1取代;Ar′为具有多达20个碳原子的芳基或杂环芳基,可选地被一个或多个基团R1取代;每个R1为C1-20烃基基团,或相邻碳原子上的两个R1基团可以与Ar基团形成螺合5或6成员环,该环本身可选地被一个或多个基团R4取代;每个R4为C1-20烃基基团。