methyl α-D-glucopyranoside 3-methyl ether | 5149-37-1

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: methyl α-D-glucopyranoside 3-methyl ether
• 英文别名: methyl 3-O-methyl-α-D-glucopyranoside；methyl-(O³-methyl-α-D-glucopyranoside)；Methyl-(O³-methyl-α-D-glucopyranosid)；Methyl-3-O-methyl-α-D-glucopyranosid；(2R,3R,4S,5R,6S)-2-(hydroxymethyl)-4,6-dimethoxyoxane-3,5-diol
• CAS: 5149-37-1
• 化学式: C₈H₁₆O₆
• 分子量: 208.211
• InChiKey: OETRAPPMILRBSS-YQXRAVKXSA-N

物化性质

• 熔点：
  79 °C
• 沸点：
  391.1±42.0 °C(Predicted)
• 密度：
  1.32±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  -1.5
• 重原子数：
  14
• 可旋转键数：
  3
• 环数：
  1.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  88.4
• 氢给体数：
  3
• 氢受体数：
  6

反应信息

• 作为反应物：
  描述：

  methyl α-D-glucopyranoside 3-methyl ether 在 硫酸 、 水 、 溶剂黄146 、 三乙胺 、 zinc(II) chloride 作用下， 以 甲醇 、 乙酸酐 、 溶剂黄146 为溶剂， 反应 3.08h， 生成 p-nitrophenyl 3-O-methyl-α-D-glucopyranoside
  参考文献：
  名称：

  Synthesis of Monomethyl Derivatives ofP-Nitrophenyl α-D-Gluco, Galacto, and Mannopyranosides and their Hydrolytic Properties Against α-Glycosidases

  摘要：

  All possible monomethyl derivatives of p-nitrophenyl alpha-D-gluco, galacto, and mannopyranosides were synthesized. Hydrolytic activities of alpha-glucosidase (rice), alpha-galactosidases (green coffee bean, Mortierella vinacea, and Aspergillus niger), and alpha-mannosidases (almond and jack bean) against them were elucidated. The 6-O-methyl galactopyranoside and mannopyranoside were hydrolyzed by the M. vinacea alpha-galactosidase and the almond and jack bean alpha-mannosidases, respectively, while these enzymes did not act on the 2-, 3-, and 4-O-methyl derivatives. On the other hand, lice alpha-glucosidase and green coffee bean and A. niger alpha-galactosidases had no hydrolyzing activities at all against the respective four monomethylated substrates.

  DOI：

  10.1080/07328300008544084
• 作为产物：
  描述：

  (2R,4aR,6S,7R,8R,8aR)-6,8-dimethoxy-2-phenylhexahydropyrano[3,2-d][1,3]dioxin-7-ol 在 盐酸 作用下， 以 甲醇 、 水 为溶剂， 反应 3.0h， 以92%的产率得到methyl α-D-glucopyranoside 3-methyl ether
  参考文献：
  名称：

  定义碱促进的糖基化中的氧阴离子反应性。

  摘要：

  通过碱处理获得的糖类氧阴离子可用于糖基化以产生具有高立体选择性和区域选择性的寡糖。

  DOI：

  10.1039/c1cc11690h

文献信息

• Regioselective methylation of methyl glycopyranosides with diazomethane in the presence of transition-metal chlorides and of boric acid
  作者：Evgeny V. Evtushenko

  DOI：10.1016/s0008-6215(99)00044-0

  日期：1999.3

  Abstract Partial methylation of the methyl pyranosides of a number of pentoses, hexoses, 6-deoxyhexoses, methyl uronates and their methyl ethers with diazomethane in the presence of transition-metal chlorides and boric acid was studied. It was found for methyl glycosides of pentoses and 6-deoxyhexoses that tin(II), antimony(III), and titanium(IV) chlorides as well as boric acid promoted substitution

  摘要研究了在过渡金属氯化物和硼酸存在下，许多戊糖，己糖，6-脱氧己糖，尿酸甲酯及其甲基醚的甲基吡喃糖苷与重氮甲烷的部分甲基化。发现戊糖和6-脱氧己糖的甲基糖苷中锡（II），锑（III）和钛（IV）氯化物以及硼酸主要促进OH-3的取代，但被铈（III）和锌的取代（II）观察到盐主要取代了OH-2。在所有情况下，甲基β-1-鼠李糖吡喃糖苷的甲基化表现出较高的OH-2反应性。在氯化锡（II），锑（III）和铈（III）的存在下，己糖甲基糖苷的甲基化反应主要产生了3-甲基醚。不参与进一步络合的3-甲基醚 积聚高达50-80％的反应混合物（95％至100％的单甲醚馏分）。建议用于许多糖的方便的甲基醚的合成。
• New Method for Regioselective Glycosylation Employing Saccharide Oxyanions
  作者：Martin Matwiejuk、Joachim Thiem

  DOI：10.1002/ejoc.201100861

  日期：2011.10

  As an alternative concept for glycosylation, the prior activation of acceptor hydroxy groups for selective glycosidic bond formation, was investigated to give complex oligosaccharides. Oxyanions obtained from partially protected saccharides were glycosylated by employing glycopyranosyl halides, and the regiochemical results were studied. Initially, partially methylated methyl-α-D-glucopyranosides were

  作为糖基化的替代概念，研究了先激活受体羟基以形成选择性糖苷键，以得到复杂的寡糖。从部分保护的糖类中获得的氧阴离子通过使用吡喃糖基卤化物进行糖基化，并研究了区域化学结果。最初，部分甲基化的甲基-α-D-吡喃葡萄糖苷被用作模型系统来研究碱基促进糖基化的基本机制原理。实现了高区域选择性和立体特异性糖苷键的形成，并且该方法的范围通过不同的全苄化糖基供体进行了扩展。
• Determination of the substituent distribution in O-sulfonylbutyl-(1→4)-glucans
  作者：Nikola Rogmann、Peter Jones、Petra Mischnick

  DOI：10.1016/s0008-6215(00)00056-2

  日期：2000.7

  A method has been developed to determine the distribution of substituents in the glucose units of sulfonylbutylethers of cyclomaltoheptaose (beta-cyclodextrin). This method involves hydrolysis of the glucosidic linkages, permethylation, formation of sulfonylchlorides and subsequent transformation to the permethylated sulfonylfluoride derivatives. The latter were thermostable and could be analyzed by GLC and identified by EI and CIMS. For confirmation, the 2-, 3-, and 6-O-substituted standard compounds were independently synthesized and characterized by NMR and GLC-MS. (C) 2000 Elsevier Science Ltd. All rights reserved.
• Haque, Mohammed Ekramul; Kikuchi, Tohru; Yoshimoto, Kimihiro, Chemical and pharmaceutical bulletin, 1985, vol. 33, # 6, p. 2243 - 2255
  作者：Haque, Mohammed Ekramul、Kikuchi, Tohru、Yoshimoto, Kimihiro、Tsuda, Yoshisuke

  DOI：——

  日期：——
• Partial alkylation and amidosulfation of monosaccharide derivatives in dimethyl sulfoxide-methanol in presence of sodium methylate
  作者：V. V. Deryabin、A. I. Usov

  DOI：10.1007/bf00962277

  日期：1981.1