2,3-Di-O-methyl-D-galacturonsaeure | 4060-32-6

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: 2,3-Di-O-methyl-D-galacturonsaeure
• 英文别名: O²,O³-dimethyl-D-galacturonic acid；O²,O³-Dimethyl-D-galacturonsaeure；(2S,3S,4S,5R)-2,3-dihydroxy-4,5-dimethoxy-6-oxohexanoic acid
• CAS: 4060-32-6
• 化学式: C₈H₁₄O₇
• 分子量: 222.195
• InChiKey: XTXBTGQHWHSMGL-ZTYPAOSTSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -2.1
• 重原子数：
  15
• 可旋转键数：
  7
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.75
• 拓扑面积：
  113
• 氢给体数：
  3
• 氢受体数：
  7

反应信息

• 作为反应物：
  描述：

  2,3-Di-O-methyl-D-galacturonsaeure 在 水 、 溴 作用下， 生成 O2,O3-dimethyl-D-galactaric acid-1=>4-lactone-6-methyl ester
  参考文献：
  名称：

  228.果胶。第五部分草莓和苹果果胶酸的分子结构

  摘要：

  DOI：

  10.1039/jr9470001218

文献信息

• Separation process
  申请人：Heikkila Heikki

  公开号：US20050096464A1

  公开（公告）日：2005-05-05

  The invention relates to a process of recovering arabinose and optionally other monosaccharides from vegetable fiber rich in heteropolymeric arabinose, such as gum arabic. Said other monosaccharides are typically selected from galactose and rhamnose. The process of the invention comprises controlled hydrolysis of the arabinose-rich vegetable fiber and fractionation of the hydrolysis product to obtain a fraction enriched in arabinose and optionally other product fractions followed by crystallization of arabinose. The invention also relates to a novel method of crystallizing arabinose from biomass-derived material. Furthermore, the invention relates to novel crystalline L-arabinose.

  本发明涉及一种从富含异聚糖阿拉伯糖的植物纤维中回收阿拉伯糖和可选的其他单糖的过程，例如阿拉伯胶。所述其他单糖通常选自半乳糖和鼠李糖。本发明的过程包括对富含阿拉伯糖的植物纤维进行控制水解，分馏水解产物以获得富含阿拉伯糖和可选的其他产物分馏，然后结晶阿拉伯糖。本发明还涉及一种从生物质衍生材料中结晶阿拉伯糖的新方法。此外，本发明还涉及新颖的结晶L-阿拉伯糖。
• SEPARATION PROCESS
  申请人：Danisco Sweeteners Oy

  公开号：EP1678330A1

  公开（公告）日：2006-07-12
• [EN] SEPARATION PROCESS<br/>[FR] PROCEDE DE SEPARATION
  申请人：DANISCO SWEETENERS OY

  公开号：WO2005042788A1

  公开（公告）日：2005-05-12

  The invention relates to a process of recovering arabinose and optionally other monosaccharides from vegetable fiber rich in heteropolymeric arabinose, such as gum arabic. Said other monosaccharides are typically selected from galactose and rhamnose. The process of the invention comprises controlled hydrolysis of the arabinose-rich vegetable fiber and fractionation of the hydrolysis product to obtain a fraction enriched in arabinose and optionally other product fractions followed by crystallization of arabinose. The invention also relates to a novel method of crystallizing arabinose from biomass-derived material. Furthermore, the invention relates to novel crystalline L-arabinose.