Living polymerization of alpha-olefins: Catalyst precursor deactivation via the unexpected cleavage of a B-C6F5 bond

被引：130

作者：

Scollard, JD ^{[1
]}

McConville, DH ^{[1
]}

Rettig, SJ ^{[1
]}

机构：

[1] UNIV BRITISH COLUMBIA,DEPT CHEM,VANCOUVER,BC V6T 1Z1,CANADA

来源：

ORGANOMETALLICS | 1997年 / 16卷 / 08期

关键词：

D O I：

10.1021/om961034b

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The titanium diamide complex [ArN(CH2)(3)-NAr]TiMe2 (1a; Ar = 2,6-(Pr2C6H3)-Pr-i) reacts with B(C6F5)(3) in pentane to give an insoluble yellow-orange solid (2a). Comp2es 2a is ct catalyst for the living polymerization of 1-hexene. Pentane suspensions of 2a slowly evolve methane over the course of several hours to give the new penfane-soluble derivative [ArN(CH2)(3)NAr]Ti[CH2B-(C6F5)(2)](C6F5) (3a), which teas structurally characterized. Addition of a B-C6F5 group across an intermediate Ti=CH2 unit is proposed. Compound 3a is inactive for the polymerization of alpha-olefins.

引用

页码：1810 / 1812

页数：3

共 26 条

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