D-乳糖酸钾 | 69313-67-3

• 物质功能分类: 有机原料 - 有机金属盐
• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 脂肪酰基
• 中文名称: D-乳糖酸钾
• 中文别名: 乳糖酸钾
• 英文名称: potassium lactobionate
• 英文别名: potassium;(2R,3R,4R,5R)-2,3,5,6-tetrahydroxy-4-[(2S,3R,4S,5R,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyhexanoate
• CAS: 69313-67-3
• 化学式: C₁₂H₂₁O₁₂*K
• 分子量: 396.39
• InChiKey: BIRNWOIQDVFTSP-WWNCWODVSA-M

计算性质

• 辛醇/水分配系数(LogP)：
  -10.0
• 重原子数：
  25
• 可旋转键数：
  8
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.92
• 拓扑面积：
  220
• 氢给体数：
  8
• 氢受体数：
  12

反应信息

• 作为反应物：
  描述：

  silver nitrate 、 D-乳糖酸钾 以 水 为溶剂， 以83.5%的产率得到silver(I) D-lactobionate monohydrate
  参考文献：
  名称：

  Structural Properties of Silver(I) and Mercury(II) Complexes of d-Lactobionate:  Self-Assembled Coordination Polymers

  摘要：

  Single crystals of silver(I) and mercury(II) D-lactobionates (LBA) grown from aqueous solutions were subjected to X-ray analysis. Both compounds crystallize in the monoclinic space group C2 (No. 5) with unit cell dimensions a = 29.621(5) Angstrom, b = 7.392(2) Angstrom, c = 7.430(2) Angstrom, and beta = 90.75(2)degrees for Ag[LBA]. H2O and a = 29.084(3) Angstrom, b = 7.4066(11) Angstrom, c = 7.4761(9) Angstrom, and = 90.718(9)degrees for Hg[LBA](2). 2H(2)O, Final solutions of both crystal structures reveal that both sugar acid-metal complexes form novel metal-bridged polysaccharides having similar structures achieved by coordination of alcoholic oxygens O(3) and O(6') in LBA to the metals, although both complexes have different local geometries around metal ions: distorted trigonal bipyramidal for Ag[LBA]. H2O and octahedral for Hg[LBA](2). 2H(2)O. Intermolecular interactions were observed through hydrogen bondings of O(4') in the galactosyl unit with O(5) and O(6) in the gluconic acid moieties of the upper polymeric unit, which is presumed to be an important factor inducing the formation of polymeric structures. In addition, a carbohydrate-carbohydrate interaction was also observed through hydrogen bondings between O(2') and O(3') of neighboring galactosyl units. Silver(I) and mercury(II) complexes lose their polymeric nature in water in different manners: the silver(I) complex is fully dissociated, but the mercury(II) complex exists as a monomeric neutral form.

  DOI：

  10.1021/ic980257m
• 作为产物：
  描述：

  乳糖 在 氧气 、 potassium hydroxide 作用下， 以 水 为溶剂， 生成 D-乳糖酸钾
  参考文献：
  名称：

  LACTOBIONIC ACID PRODUCTION METHODS AND PRODUCTS

  摘要：

  描述了制备乳糖酸的系统和方法。这些系统包括至少包括一个阳离子交换膜和一个双极膜的两室阳极双极电渗析组件。膜定义了一对流通道的边界，用于分离（i）碱性流和（i）纯化的乳糖酸流。乳糖酸流中的乳糖酸盐不会穿过电渗析组件中的膜，从而减少了膜污垢。方法包括通过两室阳极双极电渗析组件传递乳糖酸盐。电渗析组件包括至少一个两室阳极双极膜单元，将乳糖酸盐分离为碱性化合物和乳糖酸。该组件设计使得乳糖酸盐不会穿过组件中的离子交换膜形成乳糖酸，从而减少了膜污垢。

  公开号：

  US20200239511A1

文献信息

• Catalytic dehydrogenation of reducing sugars in alkaline solution
  作者：Gert de Wit、Jan J. de Vlieger、Alida C. Kock-van Dalen、Roelf Heus、Rob Laroy、Antonius J. van Hengstum、Antonius P.G. Kieboom、Herman van Bekkum

  DOI：10.1016/s0008-6215(00)86025-5

  日期：1981.5

  Abstract Aldoses in alkaline medium under the catalytic action of platinum or rhodium are converted into aldonic acids with high selectivity and with concomitant evolution of hydrogen gas. The dehydrogenation reaction has been studied for 25 different mono- and di-saccharides, and is generally applicable for reducing sugars. The influence of several reaction variables has been studied, leading to an

  摘要碱性介质中的醛类在铂或铑的催化作用下被高选择性地转化为醛糖酸，并伴随着氢气的逸出。已经针对25种不同的单糖和二糖研究了脱氢反应，该反应通常可用于还原糖。研究了几个反应变量的影响，得出了一个吸附模型，在该模型中，带负电荷的O-1和H-1与催化剂表面的紧密接触均被视为推动氢化物从C-转移的动力。将1的糖加入催化剂中。