glucitol acetate | 28976-37-6

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 脂肪酰基
• 英文名称: glucitol acetate
• 英文别名: O-Acetylsorbit；[(2S,3R,4R,5R)-2,3,4,5,6-pentahydroxyhexyl] acetate
• CAS: 28976-37-6；98633-08-0
• 化学式: C₈H₁₆O₇
• 分子量: 224.211
• InChiKey: XEMCIUAYUWMMMF-ULAWRXDQSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -3
• 重原子数：
  15
• 可旋转键数：
  7
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.88
• 拓扑面积：
  127
• 氢给体数：
  5
• 氢受体数：
  7

反应信息

• 作为产物：
  描述：

  毛蕊花糖苷 、 乙醛 生成 rhamnitol acetate 、 glucitol acetate
  参考文献：
  名称：

  Kobayashi, Hiromi; Karasawa, Hiroko; Miyase, Toshio, Chemical and pharmaceutical bulletin, 1984, vol. 32, # 8, p. 3009 - 3014

  摘要：

  DOI：

文献信息

• Branched alpha-glucan, alpha-glucosyltransferase which forms the glucan, their preparation and uses
  申请人：Watanabe Hikaru

  公开号：US20100120710A1

  公开（公告）日：2010-05-13

  The present invention has objects to provide a glucan useful as water-soluble dietary fiber, its preparation and uses. The present invention solves the above objects by providing a branched α-glucan, which is constructed by glucose molecules and characterized by methylation analysis as follows: (1) Ratio of 2,3,6-trimethyl-1,4,5-triacetyl-glucitol to 2,3,4-trimethyl-1,5,6-triacetyl-glucitol is in the range of 1:0.6 to 1:4; (2) Total content of 2,3,6-trimethyl-1,4,5-triacetyl-glucitol and 2,3,4-trimethyl-1,5,6-triacetyl-glucitol is 60% or higher in the partially methylated glucitol acetates; (3) Content of 2,4,6-trimethyl-1,3,5-triacetyl-glucitol is 0.5% or higher but less than 10% in the partially methylated glucitol acetates; and (4) Content of 2,4-dimethyl-1,3,5,6-tetraacetyl-glucitol is 0.5% or higher in the partially methylated glucitol acetates; a novel α-glucosyltransferase which forms the branched α-glucan, processes for producing them, and their uses.

  本发明的目的是提供一种作为水溶性膳食纤维有用的葡聚糖、其制备和用途。本发明通过提供一种分支α-葡聚糖来解决上述目的，该葡聚糖由葡萄糖分子构成，其特征通过甲基化分析如下：（1）2,3,6-三甲基-1,4,5-三乙酰-葡萄糖醇与2,3,4-三甲基-1,5,6-三乙酰-葡萄糖醇的比率在1:0.6至1:4的范围内；（2）2,3,6-三甲基-1,4,5-三乙酰-葡萄糖醇和2,3,4-三甲基-1,5,6-三乙酰-葡萄糖醇的总含量在部分甲基化葡萄糖醇醋酸酯中达到60％或更高；（3）2,4,6-三甲基-1,3,5-三乙酰-葡萄糖醇的含量在部分甲基化葡萄糖醇醋酸酯中为0.5％或更高，但小于10％；（4）2,4-二甲基-1,3,5,6-四乙酰-葡萄糖醇的含量在部分甲基化葡萄糖醇醋酸酯中为0.5％或更高。本发明还提供了一种形成分支α-葡聚糖的新型α-葡萄糖基转移酶，用于生产它们的方法以及它们的用途。
• Novel carbohydrate esters and polyol esters as plasticizers for polymers, compositions and articles including such plasticizers and methods of using the same
  申请人：——

  公开号：US20030171458A1

  公开（公告）日：2003-09-11

  The invention relates to methods of making carbohydrate and polyol esters suitable for use as plasticizers for polymer compositions. The invention also relates to plasticized polymer compositions comprising such carbohydrate and polyol esters. The invention also relates to articles prepared from such plasticized polymer compositions. The invention further relates to methods of using these compositions.

  本发明涉及制备适用于聚合物组分的增塑剂的碳水化合物和多元醇酯的方法。本发明还涉及包含这种碳水化合物和多元醇酯的增塑聚合物组合物。本发明还涉及从这种增塑聚合物组合物制备的物品。本发明还涉及使用这些组合物的方法。
• Isosorbide-Plasticized Starch And Uses Thereof
  申请人：Wnuk Andrew Julian

  公开号：US20120178858A1

  公开（公告）日：2012-07-12

  Starch plasticized, wholly or in part, with isosorbide, isomannide, isoidide, or a mixture thereof is disclosed. Blends of the plasticized starch and a synthetic polymer, like a polyolefin, also are disclosed.

  本发明涉及淀粉塑化物，其中淀粉塑化物完全或部分地与异山梨醇、异麦芽醇、异欧洲鼠李糖或其混合物共混。本发明还涉及淀粉塑化物与合成聚合物（如聚烯烃）的混合物。
• BIODEGRADABLE COMPOSITION COMPRISING POLYMERS OF NATURAL ORIGIN AND ALIPHATIC-AROMATIC COPOLYESTERS
  申请人：Bastioli Catia

  公开号：US20120316257A1

  公开（公告）日：2012-12-13

  The present invention relates to a biodegradable composition comprising at least one polymer of natural origin and at least one aliphatic-aromatic copolyester obtained starting from mixtures comprising aliphatic diols, polyfunctional aromatic acids, and at least two aliphatic dicarboxylic acids, at least one of which is long chain. Said composition combines improved biodegradability, excellent mechanical properties, a high level of industrial processability, limited environmental impact as well as stability of physical properties under the influence of environmental factors.

  本发明涉及一种可生物降解的组合物，包括至少一种天然来源的聚合物和至少一种由混合物制得的脂肪族芳香共聚酯，该混合物包括脂肪二醇、多官能团芳香酸和至少两种脂肪族二羧酸，其中至少一种是长链的。该组合物具有改善的生物降解性、优异的机械性能、高度的工业可加工性、有限的环境影响以及在环境因素影响下物理性能的稳定性。
• BRANCHED ALPHA-GLUCAN, ALPHA-GLUCOSYLTRANSFERASE WHICH FORMS THE GLUCAN, THEIR PREPARATION AND USES
  申请人：Hayashibara Co., Ltd.

  公开号：US20130065293A1

  公开（公告）日：2013-03-14

  The present invention has objects to provide a glucan useful as water-soluble dietary fiber, its preparation and uses. The present invention solves the above objects by providing a branched α-glucan, which is constructed by glucose molecules and characterized by methylation analysis as follows: (1) Ratio of 2,3,6-trimethyl-1,4,5-triacetyl-glucitol to 2,3,4-trimethyl-1,5,6-triacetyl-glucitol is in the range of 1:0.6 to 1:4; (2) Total content of 2,3,6-trimethyl-1,4,5-triacetyl-glucitol and 2,3,4-trimethyl-1,5,6-triacetyl-glucitol is 60% or higher in the partially methylated glucitol acetates; (3) Content of 2,4,6-trimethyl-1,3,5-triacetyl-glucitol is 0.5% or higher but less than 10% in the partially methylated glucitol acetates; and (4) Content of 2,4-dimethyl-1,3,5,6-tetraacetyl-glucitol is 0.5% or higher in the partially methylated glucitol acetates; a novel α-glucosyltransferase which forms the branched α-glucan, processes for producing them, and their uses.

  本发明旨在提供一种作为水溶性膳食纤维有用的葡聚糖，其制备和用途。本发明通过提供一种支链α-葡聚糖来解决上述问题，该支链α-葡聚糖由葡萄糖分子构成，并通过甲基化分析表征，其特征如下：(1) 2,3,6-三甲基-1,4,5-三乙酰基-葡萄糖醇与2,3,4-三甲基-1,5,6-三乙酰基-葡萄糖醇的比率在1:0.6至1:4范围内；(2) 在部分甲基化的葡萄糖醇醋酸酯中，2,3,6-三甲基-1,4,5-三乙酰基-葡萄糖醇和2,3,4-三甲基-1,5,6-三乙酰基-葡萄糖醇的总含量为60％或更高；(3) 在部分甲基化的葡萄糖醇醋酸酯中，2,4,6-三甲基-1,3,5-三乙酰基-葡萄糖醇的含量为0.5％或更高，但小于10％；(4) 在部分甲基化的葡萄糖醇醋酸酯中，2,4-二甲基-1,3,5,6-四乙酰基-葡萄糖醇的含量为0.5％或更高。本发明还提供了一种新型α-葡萄糖基转移酶，用于形成支链α-葡聚糖，以及生产它们的方法和用途。