Lectures. Main topic: New Developments in Oleochemical Research, Technology and Application

• Publisher: John Wiley and Sons
• Year: 1994
• Weight: 597 KB
• Volume: 96
• Category: Article
• ISSN: 0931-5985
• DOI: 10.1002/lipi.19940961107

✦ Synopsis

But, equally important, the culture in the company gradually evolved to becoming much more open, less defensive, a truly learning organisation.

What next

Dutch National Quality Award the management team decided to re-embark on a renewed company wide program in order to reach new platforms in Total Quality.

In the autumn of 1993, even after winning the first Main topic: New Developments in Oleochemical Research, Technology and Application J . 0 . M e t z g e r and Ursula B i e r m a n n , Oldenburg: Ene additions to unsaturated fatty compounds Thermal reactions of unsaturated fatty compounds e. g. of oleic acid and erucic acid with maleic anhydride are well known'. ' . The reaction is called "maleinization" and takes place by forming a new C,C-bond with migration of the ene double bond and 1,s-hydrogen shift. The diastereoselectivity of the reaction has not yet been examined.

We carried out the addition of maleic anhydride to oleic acid (180°C, 24 h) and obtained the ene adduct in an isolated yield of 75%. The addition takes place in positions C-9 and C-10 of the molecule chain. The regioisomers were obtained as a mixture of diastereomers as pure (E)-adducts in a ratio of 1:l. The ratio of threo-and erythro-adduct was 4:l. The assignment could be made definitely using I3C-NMR by comparison with literature data3. 0 3 1 '*ooC' 24b + 0