期刊
EUROPEAN JOURNAL OF LIPID SCIENCE AND TECHNOLOGY
卷 113, 期 2, 页码 189-196出版社
WILEY
DOI: 10.1002/ejlt.201000299
关键词
Cross-metathesis; Methyl 10-undecenoate; Monomer; Polyester; Polymer; Renewable resources
资金
- German Federal Ministry of Food, Agriculture and Consumer Protection
- Emery Oleochemicals GmbH
The cross-metathesis of methyl 10-undecenoate 1 derived from castor oil as a renewable raw material with diethyl maleate 2 was investigated. These reactions were carried out with several phosphine and N-heterocyclic carbene ruthenium catalysts. The reaction conditions were optimised for high conversions in combination with high cross-metathesis selectivity. This single-step and atom-economic synthetic method illustrates an efficient and selective preparation procedure of linear a, v-dicarboxylic acid esters starting from renewable resources and comparatively inexpensive base chemicals. Further by-products are hardly obtained due to their consumption in secondary metathesis reactions. Hence, a sustainable alternative for polyamide and polyester monomers is presented.
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