Polyisobutylene-Anchored N-Heterocyclic Carbene Ligands

被引：49
|
作者：
Hongfa, Chayanant [2 ]
Su, Haw-Lih [2 ]
Bazzi, Hassan S. [1 ]
Bergbreiter, David E. [2 ]
机构：
[1] Texas A&M Univ Qatar, Dept Chem, Doha, Qatar
[2] Texas A&M Univ, Dept Chem, College Stn, TX 77842 USA
来源：
ORGANIC LETTERS | 2009年 / 11卷 / 03期
基金：
美国国家科学基金会;
关键词：
OLEFIN METATHESIS; EFFICIENT; CATALYSTS;
D O I：
10.1021/ol802728t
中图分类号：
O62 [有机化学];
学科分类号：
070303 ; 081704 ;
摘要：
The synthesis of polyisobutylene (PIB)-supported N-heterocyclic carbenes (NHCs) that are useful as ligands for recoverable/recyclable organometallic complexes is described. Both PIB-bound carbenes analogous to SIMes and IMes as well as carbene precursors bound to PIB via 1,2,3-triazoles by alkyne-azide couplings are described. Both Ag(I) and Ru(II) complexes of these carbenes are shown to be phase selectively soluble in heptane. Hoveyda-Grubbs second-generation catalysts containing a PIB-supported NHC have also been used to catalyze ring-closing metathesis.
引用
收藏
页码：665 / 667
页数：3
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