申请人:Beghin-Say, SA
公开号:US05118804A1
公开(公告)日:1992-06-02
A process for preparing alkykl-1-thio-.alpha.,.beta.-glycosides and alkyl glycosides is described. The glycosides are prepared from a saccharide selected from monosaccharides and reducible di- and oligo-saccharides. The saccharide is reacted with either a thiol to produce an alkyl-1-thio-.alpha.,.beta.-glycoside or an alcohol to produce an alkyl glycoside in the presence of the solvent and reagent poly-(hydrogen fluoride)-pyridinium. Novel alkyl-1-thio-.alpha.,.beta.-glycosides prepared by the process of the invention are characterized in that they are in the form of a mixture of .alpha. and .beta. anomers. The alkyl-1-thio-.alpha.,.beta.-glycosides having a long alkyl chain are useful as nonionic detergents, in particular in the extraction of membrane proteins.
本发明涉及一种制备烷基-1-硫-.alpha.,.beta. -糖苷和烷基糖苷的过程。该糖苷是从单糖和可还原的二糖和寡糖中选择的。在溶剂和试剂聚氢氟酸-吡啶的存在下,将糖苷与巯基反应,产生烷基-1-硫-.alpha.,.beta. -糖苷或与醇反应,产生烷基糖苷。本发明制备的新型烷基-1-硫-.alpha.,.beta. -糖苷的特点在于,它们以.α.和.β.异构体的混合物形式存在。具有长烷基链的烷基-1-硫-.alpha.,.beta. -糖苷在非离子型洗涤剂中非常有用,特别是在提取膜蛋白方面。