SYNTHESIS OF MONOETHERS OF SUGAR COMPRISING A LONG ALKYL CHAIN AND USES THEREOF AS A SURFACTANT
申请人:TEREOS STARCH & SWEETENERS BELGIUM
公开号:US20180265533A1
公开(公告)日:2018-09-20
A process for obtaining a mixture of C4-C8 and C9-C18 alkyl monoether of saccharide, comprising: a) a first step of acetalization or trans-acetalization of a saccharide or of a mixture of saccharides with a C4-C8 aliphatic aldehyde or the acetal thereof, b) a second consecutive or simultaneous step of acetalization or trans-acetalization of the product obtained in a) of the saccharide or mixture of saccharides with a C9-C18 aliphatic aldehyde or the acetal thereof, c) a step of catalytic hydrogenolysis of the saccharide acetals obtained, and d) a step of recovery of a mixture of C4-C8 and C9-C18 alkyl saccharide monoethers. The invention further relates to a mixture of C4-C8 and C9-C18 alkyl saccharide monoethers and the use thereof as a surfactant.
ANTIBACTERIAL COMPOSITION CONTAINING AN ISOMER MIXTURE OF MONOSACCHARIDE ALKYL MONOACETALS OR MONOETHERS
申请人:TEREOS STARCH & SWEETENERS BELGIUM
公开号:US20170347653A1
公开(公告)日:2017-12-07
A bactericidal or bacteriostatic composition comprising an isomer mixture of monosaccharide alkyl monoethers or monoacetals, its use in the treatment or prevention of Gram-positive bacterial infections, its use as a hygiene or dermatological product for external use and a method for disinfecting surfaces.
An enhanced process for the production of a dianhydrosugar, such as isosorbide, from the corresponding sugar alcohol is described. The sugar alcohol is combined with an acid catalyst and reacted at elevated temperatures and at atmospheric pressure, eliminating the need for a vacuum. High selectivity and yields are achieved.
[EN] ISOIDIDE MANUFACTURE AND PURIFICATION<br/>[FR] PRODUCTION D'ISOIDIDE ET PURIFICATION
申请人:ARCHER DANIEL MIDLAND COMPANY
公开号:WO2016137833A1
公开(公告)日:2016-09-01
Methods are provided for the conversion of isosorbide to isoidide, wherein the isosorbide contains sorbitan impurities. The impurities in the isosorbide subjected to epimerization are converted to hydrodeoxygenation products. A method for synthesizing isoidide, comprising, providing an isosorbide containing one or more sorbitans; and, epimerizing the isosorbide to form an epimerization product comprising isoidide and hydrodeoxygenation products.