Ring-closure metathesis in supercritical carbon dioxide as sole solvent with use of covalently immobilized ruthenium catalysts

被引：39

作者：

Michalek, F

Mädge, D

Rühe, J

Bannwarth, W

机构：

[1] Univ Freiburg, Inst Organ Chem, D-79104 Freiburg, Germany

[2] Univ Freiburg, Inst Mikrosyst Tech, D-79104 Freiburg, Germany

来源：

EUROPEAN JOURNAL OF ORGANIC CHEMISTRY | 2006年 / 2006卷 / 03期

关键词：

supported catalysts; alkenes; supercritical carbon dioxide; olefin metathesis; ruthenium;

D O I：

10.1002/ejoc.200500738

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

We describe RCM reactions in the presence of a Hoveydatype catalyst covalently immobilized on different support materials. The performance of the catalyst was highly dependent on the nature of the support, and in some cases high levels of conversion were obtained, allowing for repetitive cycles. In addition, remarkably low levels of leaching of ruthenium. into the product (20 ppm) were observed. This environmentally benign process has potential for continuous applications. ((c) Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2006)

引用

页码：577 / 581

页数：5

共 63 条

[11] Olefin metathesis in non-degassed solvent using a recyclable, polymer supported alkylideneruthenium [J].