Robust and Selective Metathesis Catalysts for Oleochemical Applications

The screening of known ruthenium alkylidene complexes in the ethenolysis of methyl oleate shows that the Grubbs-type Ru-catalysts bearing two phosphine donor ligands exhibit high selectivity for the formation of terminal olefins. Second-generation ruthenium catalysts promote almost the exclusive for...

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Bibliographic Details
Published inTopics in catalysis Vol. 55; no. 7-10; pp. 538 - 542
Main Authors Kadyrov, Renat, Azap, Cengiz, Weidlich, Stephan, Wolf, Dorit
Format Journal Article
LanguageEnglish
Published Boston Springer US 01.07.2012
Subjects
Catalysis
Characterization and Evaluation of Materials
Chemistry
Chemistry and Materials Science
Industrial Chemistry/Chemical Engineering
Original Paper
Pharmacy
Physical Chemistry
Carbene complexes
Ru
Methyl Oleate
Metathesis
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Summary:The screening of known ruthenium alkylidene complexes in the ethenolysis of methyl oleate shows that the Grubbs-type Ru-catalysts bearing two phosphine donor ligands exhibit high selectivity for the formation of terminal olefins. Second-generation ruthenium catalysts promote almost the exclusive formation of self-metathesis products. Complexes with chelating alkylidene moieties (Hoveyda-type) generally exhibit poor selectivity for both ethenolysis and self-metathesis products. Complexes 2b and 2d promote self-metathesis of methyl oleate with catalyst loading of 2 ppm without significant isomerization up to 110 °C (using 2d) and up to 150 °C (using 2b).
ISSN:1022-5528
1572-9028
DOI:10.1007/s11244-012-9832-0