Tandem ROMP-hydrogenation with a third-generation grubbs catalyst

被引：95

作者：

Camm, Kenneth D. ^{[1
]}

Martinez Castro, Nemesio ^{[1
]}

Liu, Yuwen ^{[1
]}

Czechura, Pawel ^{[1
]}

Snelgrove, Jennifer L. ^{[1
]}

Fogg, Deryn E. ^{[1
]}

机构：

[1] Univ Ottawa, Ctr Catalysis Res & Innovat, Ottawa, ON K1N 6N5, Canada

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2007年 / 129卷 / 14期

关键词：

D O I：

10.1021/ja071047o

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Tandem ROMP-hydrogenation enables efficient access to saturated, functionalized "ROMP polyolefins". Of the Grubbs-class initiators 1-3, only third-generation catalyst 3 enables efficient ROMP of sterically demanding norbornenes with precise specification of chain lengths. Unlike 1 and 2, however, 3 decomposes rapidly during subsequent hydrogenation. By trapping the propagating species with PCy3 immediately following ROMP, we generate a Ru-terminated chain identical to that formed from 2 and exhibiting equivalent hydrogenation activity. The remarkable ROMP efficiency of 3 can thus be integrated with the high hydrogenation activity of 2, providing efficient access to chain-length-precise, functionalized polyolefins.

引用

页码：4168 / +

页数：3

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