Trabelsi Iteb, Essid Kamel, Frikha Mohamed Hedi
Laboratory of Organic Chemistry LR17ES08: Faculty of sciences in Sfax.
J Oleo Sci. 2020;69(7):693-701. doi: 10.5650/jos.ess19239.
Fatty acid sugar esters are non-ionic surfactant active agents with excellent performance and many uses. This work is devoted to the synthesis of sugar esters by the esterification reaction of sugar with mixed carboxylicpalmitic anhydrides using resin Amberlyst-15 as heterogeneous acid catalyst. These anhydrides should be stable and react as acylating agents. Influence of different reaction parameters, such as the molar ratio (sucrose/anhydride), the type of solvent and the reaction time on the yield of the esterification reaction were studied. The esterification reaction of sucrose with mixed palmitic benzoic anhydride leads to a mixture of sucrose esters of palmitic acid with a good percentage of conversion. The mixed anhydride was both reactive and selective for the preparation of fatty acid ester.
脂肪酸糖酯是一类具有优异性能和多种用途的非离子表面活性剂活性剂。这项工作致力于以Amberlyst-15树脂作为多相酸催化剂，通过糖与混合羧酸棕榈酸酐的酯化反应来合成糖酯。这些酸酐应稳定且能作为酰化剂起反应。研究了不同反应参数，如摩尔比（蔗糖/酸酐）、溶剂类型和反应时间对酯化反应产率的影响。蔗糖与混合棕榈酸苯甲酸酐的酯化反应生成了棕榈酸蔗糖酯混合物，转化率良好。该混合酸酐在制备脂肪酸酯方面既具有反应活性又具有选择性。
