D-psicose | 470-23-5

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: D-psicose
• 英文别名: (2S,5R)-2,5-bis(hydroxymethyl)oxolane-2,3,4-triol
• CAS: 470-23-5；470-24-6；10247-46-8；10489-79-9；35673-97-3；36441-90-4；36441-92-6；36468-68-5；37500-17-7；40461-86-7；40461-87-8；41579-20-8；41846-98-4；41846-99-5；41847-00-1；41847-01-2；41847-02-3；41847-03-4；41847-04-5；41847-05-6；41847-06-7；41847-51-2；41847-52-3；42744-42-3
• 化学式: C₆H₁₂O₆
• 分子量: 180.158
• InChiKey: RFSUNEUAIZKAJO-IHKGAJJJSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -2.3
• 重原子数：
  12
• 可旋转键数：
  2
• 环数：
  1.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  110
• 氢给体数：
  5
• 氢受体数：
  6

文献信息

• ISOMERIZATION OF SUGARS
  申请人：Moliner-Marin Manuel

  公开号：US20110207923A1

  公开（公告）日：2011-08-25

  Disclosed are processes for isomerizing saccharides. Also disclosed are processes for converting saccharides to furan derivatives. Also disclosed are processes for converting starch to furan derivatives.

  本发明揭示了一种对糖进行异构化的方法。本发明还揭示了将糖转化为呋喃衍生物的方法。本发明还揭示了将淀粉转化为呋喃衍生物的方法。
• PRODUCTION OF HYDROXYMETHYLFURFURAL
  申请人：ZHANG Yugen

  公开号：US20090313889A1

  公开（公告）日：2009-12-24

  The invention provides a process for making hydroxymethylfurfural. A reaction mixture comprising a saccharide and a metal complex of an N-heterocyclic carbene is initially provided. The saccharide is then allowed to react at about 70° C. or below to form hydroxymethylfurfural. The saccharide may be a hexose or a mixture of hexoses, or a dimer, oligomer or polymer or copolymer of a hexose or a mixture thereof.

  该发明提供了一种制备羟甲基糠醛的方法。首先提供含有糖类和N-杂环卡宾金属配合物的反应混合物。然后，在约70°C以下的条件下使糖类反应，形成羟甲基糠醛。糖类可以是六糖或六糖的混合物，也可以是六糖的二聚体、寡聚体、聚合物或共聚物的混合物。
• METHODS FOR CONVERSION OF CARBOHYDRATES IN IONIC LIQUIDS TO VALUE-ADDED CHEMICALS
  申请人：Zhao Haibo

  公开号：US20080033187A1

  公开（公告）日：2008-02-07

  Methods are described for converting carbohydrates including, e.g., monosaccharides, disaccharides, and polysaccharides in ionic liquids to value-added chemicals including furans, useful as chemical intermediates and/or feedstocks. Fructose is converted to 5-hydroxylmethylfurfural (HMF) in the presence of metal halide and acid catalysts. Glucose is effectively converted to HMF in the presence of chromium chloride catalysts. Yields of up to about 70% are achieved with low levels of impurities such as levulinic acid.

  本文描述了一种将碳水化合物（例如单糖，双糖和多糖）在离子液体中转化为有价值化学品（如呋喃类），可用作化学中间体和/或原料的方法。果糖在金属卤化物和酸催化剂的存在下转化为5-羟甲基糠醛（HMF）。在铬氯化物催化剂的存在下，葡萄糖可以有效地转化为HMF。收率高达约70％，杂质如丙酮酸含量低。
• Bi-phasic continuous-flow tubular reactor and heterogeneous catalysts preparation method for production of 5-hydroxymethyl furfural
  申请人：THE UNIVERSITY OF WESTERN ONTARIO

  公开号：US11352336B2

  公开（公告）日：2022-06-07

  Disclosed is a cost-effective process for catalytic conversion of simple C6-based sugars (such as glucose and fructose) and industrial-grade sugar syrups derived from starch (such as different grades of High Fructose Corn Syrup) and cellulosic biomass to 5-HydroxyMethylFurfural (5-HMF) in a continuous-flow tubular reactor in bi-phasic media using inexpensive heterogeneous solid catalysts. Commercial and synthesized heterogeneous solid catalysts were used and their activities in terms of sugar conversion and HMF selectivity and yield were compared. Continuous dehydration of fructose, glucose and industrial-grade sugar syrups derived from corn and wood to HMF was achieved and the stability of selected catalysts and feasibility of catalyst recycling and regeneration were demonstrated. The performance of the catalysts and reactor system were examined under different operating conditions including reaction temperature, feeding flow rate, initial feedstock concentration, catalyst loading, presence of extracting organic solvent and phase transfer catalyst and aqueous to organic phase ratio. At the best operating conditions, HMF yield attained 60%, 45% and 53%, from dehydration of fructose, glucose and HFCS-90, respectively.

  所公开的是一种具有成本效益的工艺，该工艺在双相介质的连续流动管式反应器中，使用廉价的异相固体催化剂，将简单的 C6 基糖（如葡萄糖和果糖）以及从淀粉（如不同等级的高果糖玉米糖浆）和纤维素生物质中提取的工业级糖浆催化转化为 5-羟甲基糠醛（5-HMF）。使用了商用和合成的异相固体催化剂，并比较了它们在糖转化、HMF 选择性和产量方面的活性。实现了从玉米和木材中提取的果糖、葡萄糖和工业级糖浆到 HMF 的连续脱水，并证明了所选催化剂的稳定性以及催化剂回收和再生的可行性。在不同的操作条件下，包括反应温度、进料流速、初始原料浓度、催化剂负载量、萃取有机溶剂和相转移催化剂的存在以及水相与有机相的比例，对催化剂和反应器系统的性能进行了检验。在最佳操作条件下，果糖、葡萄糖和 HFCS-90 脱水产生的 HMF 产量分别达到 60%、45% 和 53%。
• Conversion of carbohydrates to hydroxymethylfurfural (HMF) and derivatives
  申请人：Archer-Daniels-Midland Company

  公开号：EP2423205B2

  公开（公告）日：2019-09-18