申请人:BOREALIS AG
公开号:US20160024123A1
公开(公告)日:2016-01-28
A ligand of formula (I′)
wherein
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, C
1-20
-hydrocarbyl, tri(C
1-20
-alkyl)silyl, C
6-20
-aryl, C
7-20
-arylalkyl or C
7-20
-alkylaryl;
R
2
and R
2
′ are each independently a C
1-20
hydrocarbyl radical;
R
5′
is a C
1-20
hydrocarbyl group;
R
6
, R
6′
, R
7
and R
7′
are each independently hydrogen or a C
1-20
hydrocarbyl group;
Ar and Ar′ are independently an aryl or heteroaryl group having up to 20 carbon atoms;
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 non aromatic ring with the Ar group; and
each R
4
is a C
1-20
hydrocarbyl group;
and the dotted lines represent a double bond present in between carbons 1 and 2 or 2 and 3 of the indenyl ring.
化合物配体的公式(I'),其中
L是二价桥,选择自—R'2C—,—R'2C—CR'2—,—R'2Si—,—R'2Si—SiR'2—,—R'2Ge—,其中每个R'都是独立的氢原子,C1-20烃基,三(C1-20烷基)硅基,C6-20芳基,C7-20芳基烷基或C7-20烷基芳基;
R2和R2'各自是C1-20烃基基团;
R5'是C1-20烃基团;
R6、R6'、R7和R7'各自是氢或C1-20烃基团;
Ar和Ar'是独立的芳基或含有最多20个碳原子的杂芳基;
每个R1是C1-20烃基团,或者相邻碳原子上的两个R1组成一个融合的5或6成员非芳香环与Ar基结合;
每个R4是C1-20烃基团;
虚线表示存在于茚环的碳1和2或2和3之间的双键。