Hydroformylation of 1-octene using rhodium-1,3-R2-3,4,5,6-tetrahydropyrimidin-2-ylidenes (R=2-Pr, mesityl)

被引：33

作者：

Bortenschlager, M

Mayr, M

Nuyken, O

Buchmeiser, MR

机构：

[1] Tech Univ Munich, Lehrstuhl Makromol Stoffe, D-85747 Garching, Germany

[2] Leibniz Inst Oberflachenmodifizierung 10M EV, D-04318 Leipzig, Germany

[3] Univ Leipzig, D-04103 Leipzig, Germany

来源：

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL | 2005年 / 233卷 / 1-2期

基金：

奥地利科学基金会;

关键词：

homogeneous catalysis; hydroformylation; N-heterocyclic carbenes; 1-octene; rhodium;

D O I：

10.1016/j.molcata.2005.02.005

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Four different Rh (1) complexes, i.e. [RhBr(1,3-di(2-propyl)-3,4,5,6-tetrahydropyrimidin-2-ylidene)(COD)] (1), [RhCl (1,3-di(2-propyl)3,4,5,6-tetrahydropyrimidin-2-ylidene) (COD)] (2), [RhBr(1,3-dimesityl-3,4,5,6-tetrahydropyrimidin-2-ylidene) (COD)] (3) and [RhCl(1,3dimesityl-3,4,5,6-tetrahydropyrimidin-2-ylidene)(COD)] (4), (COD = eta(4)-1,5-cyclooctadiene, mesityl = 2,4,6-trimethylphenyl), were used in the hydroformylation of 1-octene. All compounds were active in the hydroformylation, showing a time dependant n:iso ratio, indicative for olefin isomerization. This olefin isomerization was also monitored as a function of time. TOFs for hydroformylation obtained with 1 and 2 were around 500, those achieved with 3 and 4 around 1500 h(-1.) (c) 2005 Elsevier B.V. All rights reserved.

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页码：67 / 71

页数：5

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