1993
DOI: 10.1002/lipi.19930950504
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Regioisomerenreine Mono‐ und Diglyceride als Synthesebausteine

Abstract: e r g e r i i n d h4. S c h n e i d e r ** Organische Chemie, Fuchbereich 9, Bergische Universilat, Gesamthochschule Wuppertul Regioisomerenreine Mono-und Diglyceride sind wertvolle, ntchtionische Tenside fw eine Vielzahl von Anwendungsmoglichkeiten z. B. im Pharma-oder Kosmetikbereich. Sie sind aber auch attraktive Ausgangsmaterialien fur die Synthese anderer Lipide wie selektiv funktionalisierter Triglyceride, Glyko-und Phospholipide. Das hohe synthetische Potential dieser Molekule konnte aber bisher aufgrun… Show more

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Cited by 18 publications
(8 citation statements)
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“…[94,95] If glycerol is immobilized on silica gel, the esterification runs surprisingly smoothly in aprotic solvents such as nhexane or tert-butylmethyl ether in the presence of different lipases and acyl donors (free fatty acids, fatty acid methyl esters, vinyl esters, triglycerides, and so forth). [100] If the 1(3)-sn-monoglycerides 68 are prepared by this method, they must be selectively separated from the reaction mixture, since they are very readily esterified by the lipases to 1,3-sn-diglycerides. [96,99] Because of their ready accessibility, up to the kilogram scale, and their high purity and stability, these 1,3-sn-diglycerides represent interesting building blocks for further surfactant compounds (for exam-Scheme 27.…”
Section: Lipase-catalyzed Syntheses Of Monoglycerides and Diglyceridesmentioning
confidence: 99%
“…[94,95] If glycerol is immobilized on silica gel, the esterification runs surprisingly smoothly in aprotic solvents such as nhexane or tert-butylmethyl ether in the presence of different lipases and acyl donors (free fatty acids, fatty acid methyl esters, vinyl esters, triglycerides, and so forth). [100] If the 1(3)-sn-monoglycerides 68 are prepared by this method, they must be selectively separated from the reaction mixture, since they are very readily esterified by the lipases to 1,3-sn-diglycerides. [96,99] Because of their ready accessibility, up to the kilogram scale, and their high purity and stability, these 1,3-sn-diglycerides represent interesting building blocks for further surfactant compounds (for exam-Scheme 27.…”
Section: Lipase-catalyzed Syntheses Of Monoglycerides and Diglyceridesmentioning
confidence: 99%
“…[68] Trolox ± carotene glyceride 7 may therefore be suitable for the preparation of carotenoid ± trolox dispersions with a new functionality, since the activity of vitamin E and carotenoids depends on the partial diffusion of the compounds into the lipid and water phase of the emulsified particles. [43,69,70] The carotene ± trolox compound 7 will probably be hydrolyzed in the gut in a similar manner to other diglycerides and, consequently, the constituent compounds of 7 would be released simultaneously at sites which might not be reached by the individual chemicals.…”
Section: Introductionmentioning
confidence: 99%
“…[94,95] Wird Glycerin 64 auf Kieselgel immobilisiert, gelingt die Veresterung überraschend einfach in aprotischen Lösungsmitteln wie n-Hexan oder tert-Butylmethylether in Gegenwart unterschiedlichster Lipasen und unter Verwendung einer Vielzahl von Acyldonoren (freie Fettsäuren, Fettsäuremethylester, -vinylester, Triglyceride etc.). [100] Schema 27. B. mit Laurinsäurevinylester 69 in Gegenwart einer so genannten 1,3-selektiven Lipase [96,99] problemlos isomerenreines (> 98 %) 1,3-sn-Dilaurin 70 erhalten (Schema 27).…”
Section: Schema 26 Lipase-katalysierte Synthese Von 1(3)-sn-monoglycunclassified