O⁵-Acetyl-D-arabinose | 116009-99-5

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: O⁵-Acetyl-D-arabinose
• 英文别名: [(2R,3R,4S)-2,3,4-trihydroxy-5-oxopentyl] acetate
• CAS: 116009-99-5
• 化学式: C₇H₁₂O₆
• 分子量: 192.169
• InChiKey: MZGVEPPVMFYCJT-QYNIQEEDSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -1.7
• 重原子数：
  13
• 可旋转键数：
  6
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.71
• 拓扑面积：
  104
• 氢给体数：
  3
• 氢受体数：
  6

反应信息

• 作为产物：
  描述：

  O5-Acetyl-D-arabinose-dipropyldithioacetal 在 丙酮 、 mercury dichloride 、 mercury(II) oxide 作用下， 生成 O⁵-Acetyl-D-arabinose
  参考文献：
  名称：

  Zinner; Wessely, Chemische Berichte, 1957, vol. 90, p. 516,518

  摘要：

  DOI：

文献信息

• Corn fiber for the production of advanced chemicals and materials: arabinoxylan and arabinoxylan derivatives prepared therefrom
  申请人：Eastman Chemical Company

  公开号：US20010020091A1

  公开（公告）日：2001-09-06

  In one aspect, the invention provides a method of extracting arabinoxylan from corn fiber wherein the method comprises the steps of: (a) heating an aqueous mixture of corn fiber and a liquid; (b) contacting the mixture of step (a) with a protease enzyme, thereby providing a proteolyzed corn fiber and a liquid; (c) separating the liquid from the proteolyzed corn fiber; (d) contacting the proteolyzed corn fiber at least once with an alkaline extractant, thereby providing an insoluble cellulose material and a liquid comprising arabinoxylan; (e) separating the insoluble cellulose material from the liquid comprising arabinoxylan; and (f) reducing the volume of the liquid comprising arabinoxylan by removing excess alkaline extractant, thereby providing a concentrated liquid comprising from about 10% to about 50% solids, wherein the solids comprise arabinoxylan. In a further aspect, the invention provides methods of preparing novel arabinoxylan esters and ethers. Still further, the invention provides novel arabinoxylan esters and ethers.

  本发明提供了一种从玉米纤维中提取阿拉伯木聚糖的方法，其中该方法包括以下步骤：(a)加热玉米纤维和液体的水混合物；(b)将步骤(a)的混合物与蛋白酶酶接触，从而提供了蛋白酶水解的玉米纤维和液体；(c)将液体与蛋白酶水解的玉米纤维分离；(d)至少一次将蛋白酶水解的玉米纤维与碱性萃取剂接触，从而提供了不溶性纤维素材料和含有阿拉伯木聚糖的液体；(e)将不溶性纤维素材料与含有阿拉伯木聚糖的液体分离；(f)通过去除过量的碱性萃取剂来减少含有阿拉伯木聚糖的液体的体积，从而提供含有约10％至约50％固体的浓缩液体，其中固体包括阿拉伯木聚糖。在进一步的方面，本发明提供了制备新型阿拉伯木聚糖酯和醚的方法。还进一步提供了新型的阿拉伯木聚糖酯和醚。
• Methods of separating a corn fiber lipid fraction from corn fiber
  申请人：Eastman Chemical Company

  公开号：US20030188340A1

  公开（公告）日：2003-10-02

  In one aspect, the invention provides a corn fiber lipid fraction containing phytosterols and phytosterol esters obtained via solvent extraction of a proteolyzed corn fiber, wherein the concentration of phytosterols and phytosterol esters in the lipid fraction is at least about 1.4 times greater than the concentration of phytosterols and phytosterol esters in the lipid fraction of a nonproteolyzed corn fiber.

  本发明提供了一种玉米纤维脂肪分离物，其中含有通过对水解的玉米纤维进行溶剂提取获得的植物甾醇和植物甾醇酯，其中脂肪分离物中植物甾醇和植物甾醇酯的浓度至少比未经蛋白水解的玉米纤维脂肪分离物中的浓度高约1.4倍。
• Corn fiber for the production of advanced chemicals and materials: derivatizable cellulose and cellulose derivatives made therefrom
  申请人：Eastman Chemical Company

  公开号：US20030207407A1

  公开（公告）日：2003-11-06

  The invention provides a method of obtaining a cellulose material from corn fiber wherein the method comprises the steps of: (a) heating a mixture of corn fiber and a liquid; (b) contacting the mixture of step (a) with a protease enzyme, thereby providing a proteolyzed corn fiber and a liquid; (c) separating the liquid from the proteolyzed corn fiber; (d) contacting the proteolyzed corn fiber at least once with an alkaline extractant, thereby providing an insoluble cellulose material and a first liquid comprising arabinoxylan; (e) separating the insoluble cellulose material from the first liquid comprising arabinoxylan at a temperature of at or above about 60° C.; and (f) rinsing the insoluble cellulose material to remove essentially all alkali, thereby providing a cellulose material having a cellulose content of at least about 50% and consisting essentially of cellulose I. Cellulose esters and ethers are also prepared from the derivatizable cellulose prepared according to the methods herein.

  本发明提供了一种从玉米纤维中获取纤维素材料的方法，其中该方法包括以下步骤：(a)加热玉米纤维和液体的混合物；(b)将步骤(a)的混合物与蛋白酶酶接触，从而提供了水解的玉米纤维和液体；(c)将液体与水解的玉米纤维分离；(d)将水解的玉米纤维至少一次与碱性萃取剂接触，从而提供了一种不溶性纤维素材料和第一液体，其中第一液体包括阿拉伯木聚糖；(e)在温度等于或高于约60℃的条件下将不溶性纤维素材料与包含阿拉伯木聚糖的第一液体分离；(f)冲洗不溶性纤维素材料，以去除基本全部碱，从而提供一种纤维素材料，其纤维素含量至少为约50％，并且基本上由纤维素I组成。根据本文所述的方法，还可以从可衍生纤维素制备纤维素酯和醚。
• CORN FIBER FOR THE PRODUCTION OF ADVANCED CHEMICALS AND MATERIALS
  申请人：EASTMAN CHEMICAL COMPANY

  公开号：EP1155104A2

  公开（公告）日：2001-11-21
• US6352845B1
  申请人：——

  公开号：US6352845B1

  公开（公告）日：2002-03-05