Rhodium-catalysed synthesis of branched fatty compounds in temperature-dependent solvent systems
✍ Scribed by Arno Behr; Christian Fängewisch
- Book ID
- 104422262
- Publisher
- Elsevier Science
- Year
- 2003
- Tongue
- English
- Weight
- 329 KB
- Volume
- 197
- Category
- Article
- ISSN
- 1381-1169
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✦ Synopsis
For any industrial application of a homogeneously catalysed reaction a complete recycling of the-in general expensivecatalyst should be guaranteed. Also a highly efficient reaction without any mass transport problems is strongly desired. After examining the technically interesting rhodium-catalysed cooligomerization of diunsaturated fatty substances with ethylene, a solution of these requirements can be fulfilled by using some organic chlorides as promoting agents in combination with the new recycling concept of "temperature-dependent solvent systems." Because of their physical properties the products 2 + 3internal branched fatty substances-are a very interesting class of new lubricants which are expected to be biodegradable. These branched fatty substances could be synthesised in high yields of up to 98% and the turn over frequency (TOF) could be increased from 2 up to 220 h -1 .