二果糖酐 | 81129-73-9

• 分子结构分类: 有机化合物 - 有机氧化合物
• 中文名称: 二果糖酐
• 英文名称: α-D-fructofuranosyl-β-D-fructofuranosyl-(1,2':2,3')-dianhydride
• 英文别名: α-D-fructofuranose β-D-fructofuranose 1,2':2,3'-dianhydride；α-D-fructofuranose-β-D-fructofuranose-2',1:2,3'-dianhydride；α-D-fructofuranose β-D-fructofuanose 2'1:2,3'-dianhydride；di-D-fructofuranosyl 1,2':2,3'-dianhydride；di-D-fructofuranose-1,2':2,3' dianhydride；di-D-fructofuranose-1,2':2,3'-dianhydride；Difructose anhydride III；(2R,3'S,4'S,4aR,5'R,6R,7R,7aS)-4a,5',6-tris(hydroxymethyl)spiro[3,6,7,7a-tetrahydrofuro[2,3-b][1,4]dioxine-2,2'-oxolane]-3',4',7-triol
• CAS: 81129-73-9
• 化学式: C₁₂H₂₀O₁₀
• 分子量: 324.285
• InChiKey: KSRQDWNGXKYIDO-TWOHWVPZSA-N

物化性质

• 熔点：
  163-164 °C
• 比旋光度：
  [α]D20 +135～+139° (c=1, H2O)
• 沸点：
  692.5±55.0 °C(Predicted)
• 密度：
  1.75±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  -3.7
• 重原子数：
  22
• 可旋转键数：
  3
• 环数：
  3.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  158
• 氢给体数：
  6
• 氢受体数：
  10

反应信息

• 作为反应物：
  描述：

  二果糖酐 、 蔗糖 在 dextransucrase (EC 2.4.1.5) 作用下， 生成 、
  参考文献：
  名称：

  Oligosaccharide synthesis by dextransucrase: new unconventional acceptors

  摘要：

  The acceptor reactions of dextransucrase offer the potential for a targeted synthesis of a wide range of di-, tri- and higher oligosaccharides by the transfer of a glucosyl group from sucrose to the acceptor. We here report on results which show that the synthetic potential of this enzyme is not restricted to 'normal' saccharides. Additionally functionalized saccharides, such as alditols, aldosuloses, sugar acids, alkyl saccharides, and glycals, and rather unconventional saccharides, such as fructose dianhydride, may also act as acceptors. Some of these acceptors even turned out to be relatively efficient: OC-D-glucopyranosyl-(1 --> 5)-D-arabinonic acid, alpha-D-glucopyranosyl-(1, 4)-D-glucpyranosol, alpha-D-glucopyranosyl-(1 --> 6)-D-glucitol, alpha-D-glucopyranosyl-(1 --> 6)-D-mannitol, alpha-D-fructofuranosyl-beta-D-fructofuranosyl-(1,2':2,3')-dianhydride, 1, 5-anhydro-2-deoxy-D-arabino-hex-1-enitol ('D-glucal'), and may therefore be of interest for future applications of the dextransucrase acceptor reaction. (C) 2002 Elsevier Science Ltd. All rights reserved.

  DOI：

  10.1016/s0008-6215(02)00272-0
• 作为产物：
  描述：

  在 sodium ethanolate 作用下， 以 甲醇 为溶剂， 生成 二果糖酐
  参考文献：
  名称：

  Isolation and NMR studies of di-d-fructose anhydride III from Lycoris radiata Herbert by supercritical extraction with carbon dioxide

  摘要：

  DOI：

  10.1016/s0008-6215(97)00016-5

文献信息

• METHOD FOR PREPARING LEVULINIC ACID USING SOLID ACID CATALYST IN PRESENCE OF ETHYLENE GLYCOL-BASED COMPOUND SOLVENT DERIVED FROM BIOMASS
  申请人：KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY

  公开号：US20160221908A1

  公开（公告）日：2016-08-04

  Provided is a method for preparing levulinic acid using a solid acid catalyst in the presence of an ethylene glycol-based compound. The levulinic acid according to the present invention can be prepared by using a linear or cyclic ethylene glycol-based compound as a solvent and preparing the levulinic acid from fructose in the presence of the solid acid catalyst at a reaction temperature of 100 to 200° C., thereby reducing the dependency on petroleum in response to greenhouse gas emission regulations. Also, a high yield of levulinic acid can be obtained from fructose, and the solvent and the catalyst can be efficiently separated, collected, and reused after the reaction has completed.

  提供了一种使用固体酸催化剂在乙二醇基化合物存在下制备γ-戊内酸的方法。根据本发明，可以通过使用线性或环状乙二醇基化合物作为溶剂，在固体酸催化剂存在下，在反应温度为100至200°C的条件下，从果糖制备γ-戊内酸，从而减少对石油的依赖以响应温室气体排放法规。此外，可以从果糖中获得高产率的γ-戊内酸，并且在反应完成后，溶剂和催化剂可以被有效分离、收集和重复使用。
• METHOD FOR PREPARING 5-HYDROXYMETHYL-2-FURFURAL USING ACID CATALYST IN PRESENCE OF ETHYLENE GLYCOL-BASED COMPOUND SOLVENT DERIVED FROM BIOMASS
  申请人：KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY

  公开号：US20160207896A1

  公开（公告）日：2016-07-21

  Provided is a method for preparing 5-hydroxymethyl-2-furfural using an acid catalyst in the presence of an ethylene glycol-based solvent. The method for preparing the 5-hydroxymethyl-2-furfural involves using a linear or cyclic ethylene glycol-based compound as a solvent and producing the 5-hydroxymethyl-2-furfural from fructose, in the presence of the acid catalyst, thereby reducing the dependency on petroleum in response to greenhouse gas emission regulations. Also, a high yield of the 5-hydroxymethyl-2-furfural can be obtained from fructose, and the solvent and the catalyst can be efficiently separated, collected, and reused after a reaction has completed.

  提供了一种制备5-羟甲基-2-糠醛的方法，该方法使用酸催化剂在乙二醇基溶剂存在下进行。制备5-羟甲基-2-糠醛的方法涉及使用线性或环状乙二醇基化合物作为溶剂，并在酸催化剂的存在下从果糖中产生5-羟甲基-2-糠醛，从而减少对石油的依赖，以响应温室气体排放规定。此外，可以从果糖中获得高收率的5-羟甲基-2-糠醛，并且在反应完成后可以高效地分离、收集和重复使用溶剂和催化剂。
• Carbon Dioxide as a Traceless Caramelization Promotor: Preparation of Prebiotic Difructose Dianhydrides (DFAs)-Enriched Caramels from <scp>d</scp>-Fructose
  作者：Maïté Audemar、Loyda Atencio-Genes、Carmen Ortiz Mellet、François Jérôme、José Manuel Garcia Fernandez、Karine De Oliveira Vigier

  DOI：10.1021/acs.jafc.7b01601

  日期：2017.8.2

  glycosylated derivatives (glycosyl-DFAs), a family of prebiotic oligosaccharides. Under optimized conditions, up to 70% of the active DFA species were obtained from a highly concentrated solution of fructose, avoiding the filtration step and contamination risk associated with the current procedures that employ heterogeneous catalysis with acid ion-exchange resins. The optimized CO2-promoted preparation of DFA-enriched

  由二氧化碳生成的d-果糖浓缩溶液被二氧化碳活化，可诱导形成二果糖二酐（DFA）及其糖基化衍生物（糖基-DFA），这是一种益生元寡糖家族。在优化的条件下，从果糖的高浓度溶液中最多可获得70％的活性DFA物质，从而避免了过滤步骤和与采用酸离子交换树脂进行多相催化的现有程序相关的污染风险。本文所述的优化的由CO 2促进的富含DFA的焦糖制剂的规模已成功扩大到150 kg d。-果糖用于营养研究，表明该过程的大规模实施是可能的。
• US9682912B2
  申请人：——

  公开号：US9682912B2

  公开（公告）日：2017-06-20
• US9802910B2
  申请人：——

  公开号：US9802910B2

  公开（公告）日：2017-10-31