Isomerizing hydroformylation of fatty acid esters:: Formation of ω-aldehydes

被引：85

作者：

Behr, A

Obst, D

Westfechtel, A

机构：

[1] Univ Dortmund, Lehrstuhl Tech Chem A, D-44227 Dortmund, Germany

[2] GmbH & Co KG, Cognis Deutschland, Dusseldorf, Germany

来源：

EUROPEAN JOURNAL OF LIPID SCIENCE AND TECHNOLOGY | 2005年 / 107卷 / 04期

关键词：

isomerization-hydroformylation; homogeneous catalysis; internal olefin; rhodium-BIPHEPHOS; fatty acid ester;

D O I：

10.1002/ejit.200401123

中图分类号：

TS2 [食品工业];

学科分类号：

0832 ;

摘要：

The isomerizing hydroformylation of fatty acid esters to oleochemicals with an additional omega-standing aldehyde group can be performed at a relatively low temperature of 115 degrees C and a synthesis gas pressure of 20 bar. In the case of oleic acid ester the best, yield of linear aldehyde is 26%; in the case of linoleic acid ester, it is 34%. For both fatty compounds, a strong hydrogenation side reaction is observed, which can be explained by a steering effect of the ester group. The ester function of the fatty compounds makes hydroformylation in the surrounding area of this group impossible. Reactions with the model substances ethyl crotonate and ethyl sorbate showed that hydrogenation predominates, leading to the corresponding saturated compounds.

引用

页码：213 / 219

页数：7

共 23 条

[1]

AHLERS W, 2002, Patent No. 10046026

[2]

AHLERS W, 2002, Patent No. 10101939

[3] Highly selective tandem isomerization-hydroformylation reaction of trans-4-octene to n-nonanal with rhodium-BIPHEPHOS catalysis [J].