PROTECTED (FLUOROARYL)BORATES AS EFFECTIVE COUNTERANIONS FOR CATIONIC METALLOCENE POLYMERIZATION CATALYSTS

被引:113
作者
JIA, L [1 ]
YANG, XM [1 ]
ISHIHARA, A [1 ]
MARKS, TJ [1 ]
机构
[1] NORTHWESTERN UNIV, DEPT CHEM, EVANSTON, IL 60208 USA
关键词
D O I
10.1021/om00007a006
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
The functionalized (fluoroaryl)borate salts Ph(3)C(+)B(C6F4TBS)(4)(-) and Ph(3)C(+)B(C6F4TIPS)(4)(-) (TBS = (t)BuMe(2)Si; TIPS = (Pr3Si)-Pr-i) are prepared in three steps from 1,4-HC6F4Br. Reaction with zirconocene dimethyls yields crystalline, thermally stable, soluble L(2)ZrCH(3)(+)B-(C(6)F(4)SiR(3))(4)(-) and L'2ZrH+B(C(6)F(4)SiR(3))(4)(-) salts (L = eta(5)-C5H5; eta(5)-1,2-Me(2)C(5)H(3); L' = eta(5)-Me(5)C(5)) which function as highly active ethylene polymerization catalysts.
引用
收藏
页码:3135 / 3137
页数:3
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