ethyl D-galactoside | 118245-31-1

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: ethyl D-galactoside
• 英文别名: Ethyl-D-galactosid；ethyl galactoside；(3R,4S,5R,6R)-2-ethoxy-6-(hydroxymethyl)oxane-3,4,5-triol
• CAS: 118245-31-1
• 化学式: C₈H₁₆O₆
• 分子量: 208.211
• InChiKey: WYUFTYLVLQZQNH-XLSKCSLXSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -1.8
• 重原子数：
  14
• 可旋转键数：
  3
• 环数：
  1.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  99.4
• 氢给体数：
  4
• 氢受体数：
  6

反应信息

• 作为反应物：
  描述：

  ethyl D-galactoside 、 辛酸 以80%的产率得到ethyl 6-O-octanoyl-D-galactoside
  参考文献：
  名称：

  Monoesters of glycosides and a process for enzymatic preparation thereof

  摘要：

  式为(R-COO).sub.n X-OR.sup.1的化合物，其中R.sup.1是可选择取代的烷基、苯基或烷基苯基，n为1、2或3，X是碳水化合物基团，R是可选择取代的烷基，作为洗涤剂添加剂具有卓越效果。这些化合物可以通过使用特定酶对糖苷进行酯化来制备。

  公开号：

  US05191071A1
• 作为产物：
  描述：

  乙醇 、 口服葡萄糖 在 indium 、 3-benzoyloxyallyl bromide 作用下， 生成 ethyl D-galactoside
  参考文献：
  名称：

  Chain Elongation of Aldoses by Indium-Mediated Coupling with 3-Bromopropenyl Esters

  摘要：

  A procedure is described for acyloxyallylation of unprotected aldoses with two functionalized reagents: 3-bromopropenyl acetate and 3-bromopropenyl benzoate. The reaction is performed in ethanol or a dioxane/water mixture in the presence of indium metal. The products are deesterified in the workup to afford unsaturated polyols, which are isolated as mixtures of two diastereomers. The major diastereomers are subjected to ozonolysis to afford new aldoses, which have been elongated by two carbon atoms compared to the starting materials. The new aldoses all have lyxo configuration at positions 2, 3, and 4.

  DOI：

  10.1021/jo051297s

文献信息

• An Improved Procedure for the Regioselective Acetylation of Monosaccharide Derivatives by Pancreatin-Catalyzed Transesterification in Organic Solvents
  作者：Fritz Theil、Hans Schick

  DOI：10.1055/s-1991-26510

  日期：——

  A series of pyranosidic and furanosidic monosaccharide derivatives were monoacetylated in the 6-position with high regioselectivity and good to excellent yields by the pancreatin-catalyzed transesterification with vinyl acetate in the solvent system tetrahydrofuran/triethylamine.

  一系列吡喃糖和呋喃糖的单糖衍生物在6位上通过胰酶催化的酯交换反应，与乙酸乙烯酯在四氢呋喃/三乙胺溶剂体系中进行，实现了高度区域选择性的单乙酰化，产率良好至优秀。
• 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.

  一种获取C4-C8和C9-C18糖苷烷基单醚混合物的方法，包括：a)对糖苷或糖苷混合物与C4-C8脂肪族醛或其缩醛进行缩醛化或转缩醛化的第一步骤，b)对步骤a)中得到的糖苷或糖苷混合物与C9-C18脂肪族醛或其缩醛进行连续或同时的缩醛化或转缩醛化的第二步骤，c)对所得糖苷缩醛进行催化氢解的步骤，以及d)回收C4-C8和C9-C18糖苷烷基单醚混合物的步骤。该发明还涉及一种C4-C8和C9-C18糖苷烷基单醚混合物及其作为表面活性剂的用途。
• 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.

  一种杀菌或抑菌组合物，包括单糖烷基单醚或单缩醛的异构体混合物，其用于治疗或预防革兰氏阳性细菌感染，其用作外用卫生或皮肤学产品，以及一种消毒表面的方法。
• Fluorine-containing compounds and polymers derived therefrom
  申请人：——

  公开号：US20030109626A1

  公开（公告）日：2003-06-12

  Provided are fluorine-containing compounds, and polymers derived therefrom, for use in compositions used for treating textile substrates. Also provided are methods of making fluorine-containing compounds and polymers derived therefrom, compositions comprising the compounds and/or polymers of the present invention, methods of treating substrates, and the treated products derived therefrom.

  提供含氟化合物和由此衍生的聚合物，用于处理纺织物基材的组合物。还提供制备含氟化合物和由此衍生的聚合物的方法，包括本发明化合物和/或聚合物的组合物，处理基材的方法以及由此衍生的处理产品。
• Thermally stable polyurethane elastomers containing glycoside polyols and a method of producing them
  申请人：OLIN CORPORATION

  公开号：EP0244539A1

  公开（公告）日：1987-11-11

  The use of glycoside polyols together with diol or triol-initiated polyols in the production of polyurethane elastomers provides elastomers which are thermally stable at temperatures of l40°F or higher. These polyurethane elastomers are useful as thermoconductivity barriers in window holders exposed to high-temperature conditions, as engine mounts on automobiles, as encapsulators for electronic distributors, and the like.

  在聚氨酯弹性体的生产过程中，糖苷多元醇与二元醇或三元醇引发的多元醇一起使用，可提供在 l40°F 或更高温度下具有热稳定性的弹性体。这些聚氨酯弹性体可用作暴露在高温条件下的窗框的热传导屏障、汽车的发动机支架、电子分配器的封装等。