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甲基2,3,6-三-O-甲基-alpha-D-吡喃葡萄糖苷 | 23009-68-9

中文名称
甲基2,3,6-三-O-甲基-alpha-D-吡喃葡萄糖苷
中文别名
——
英文名称
methyl 2,3,6-tri-O-methyl-α-D-glucopyranoside
英文别名
Methyl-2,3,6-tri-O-methyl-α-D-glucopyranosid;alpha-D-Glucopyranoside, methyl 2,3,6-tri-O-methyl-;(2R,3R,4S,5R,6S)-4,5,6-trimethoxy-2-(methoxymethyl)oxan-3-ol
甲基2,3,6-三-O-甲基-alpha-D-吡喃葡萄糖苷化学式
CAS
23009-68-9
化学式
C10H20O6
mdl
——
分子量
236.265
InChiKey
WMAJFVGSEYZPMZ-SPFKKGSWSA-N
BEILSTEIN
——
EINECS
——
  • 物化性质
  • 计算性质
  • ADMET
  • 安全信息
  • SDS
  • 制备方法与用途
  • 上下游信息
  • 反应信息
  • 文献信息
  • 表征谱图
  • 同类化合物
  • 相关功能分类
  • 相关结构分类

物化性质

  • 沸点:
    329.9±42.0 °C(Predicted)
  • 密度:
    1.14±0.1 g/cm3(Predicted)

计算性质

  • 辛醇/水分配系数(LogP):
    -1
  • 重原子数:
    16
  • 可旋转键数:
    5
  • 环数:
    1.0
  • sp3杂化的碳原子比例:
    1.0
  • 拓扑面积:
    66.4
  • 氢给体数:
    1
  • 氢受体数:
    6

安全信息

  • 海关编码:
    2932999099

SDS

SDS:7d80dc91710c29b57e036269c0eedeb9
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上下游信息

  • 上游原料
    中文名称 英文名称 CAS号 化学式 分子量
  • 下游产品
    中文名称 英文名称 CAS号 化学式 分子量

反应信息

  • 作为反应物:
    描述:
    甲基2,3,6-三-O-甲基-alpha-D-吡喃葡萄糖苷三甲基硅基甲烷磺酸酯三氟化硼乙醚 三乙基硅烷 作用下, 以 二氯甲烷 为溶剂, 反应 1.0h, 以16 mg的产率得到1,5-anhydro-2,3,6-tri-O-methyl-D-glucitol
    参考文献:
    名称:
    Studies of model compounds for the analysis of ester-containing polysaccharides by the reductive-cleavage method
    摘要:
    The four O-propionyl regioisomers of methyl tri-O-methyl-alpha-D-glucopyranoside and the 2- and 3-O-propionyl regioisomers of methyl tri-O-methyl-beta-D-glucopyranoside were subjected to reductive cleavage in the presence of Et3SiH and Me3SiOSO2CF3, BF3.Et2O, or Me3SiOSO2Me-BF3.Et2O. The O-propionyl group was stable when either Me3SiOSO2CF3 or BF3.Et2O Was the catalyst, but was slowly reduced to the (1-propyl) ether when Me3SiOSO2Me-BF3.Et2O was the catalyst. Reductive cleavages catalyzed by Me3SiOSO2CF3 were complete in 6 h, those catalyzed by BF3.Et2O required at least 24 h, and those catalyzed by Me3SiOSO2Me-BF3.Et2O required 30 min or less. In the alpha-series, the rate of reductive cleavage decreased in the order 6-O-propionyl > 4-O-propionyl > 3-O-propionyl much greater than 2-O-propionyl. The reductive cleavage of beta-anomers was faster than that of the corresponding alpha-anomers. This effect was particularly striking for the alpha and beta-anomers of the 2-O-propionyl regioisomer, as would be expected on the basis of a participation reaction.
    DOI:
    10.1016/0008-6215(92)84021-j
  • 作为产物:
    描述:
    4,6-O-benzylidene-1-O-methyl-α-D-glucopyranoside硼烷四氢呋喃络合物 、 palladium 10% on activated carbon 、 氢气 、 sodium hydride 作用下, 以 四氢呋喃乙醇二氯甲烷 、 mineral oil 为溶剂, 反应 271.5h, 生成 甲基2,3,6-三-O-甲基-alpha-D-吡喃葡萄糖苷
    参考文献:
    名称:
    嵌段烷基化(1-> 4)连接的三糖作为表面活性剂的合成:端基异构体位置的构型对其表面活性的影响。
    摘要:
    29/71(16))是通过组合方法合成的,包括酸催化纤维素醚的醇解和苯基硫代纤维二糖苷衍生物的糖基化。它们在水溶液中的表面活性取决于它们的化学结构:亲水性纤维二糖基和疏水性葡萄糖基嵌段之间的α-或β-(1→4)键,疏水性葡萄糖基嵌段的甲基或乙基以及α-或β-连接的醚疏水性葡糖基嵌段的C-1处的基团。还研究了α-和β-糖苷对表面活性的混合作用。结果,乙基β-d-吡喃葡萄糖基-(1-> 4)-α-d-吡喃葡萄糖基-(1-> 4)-2,3,6-tri-O-ethyl-ta-d-吡喃葡萄糖苷7(GβGαEβ)具有最高的表面活性,化合物7的临界胶束浓度(CMC)和γ(CMC)(在CMC处的表面张力)值分别为0.5mM(约0.03wt%)和34.5mN / m。除化合物9和10外,α-糖苷和β-糖苷混合物的表面张力几乎等于纯化合物的表面张力。没有纯化过程的α-糖苷和β-糖苷混合物的合成比纯化合物更容易
    DOI:
    10.1016/j.carres.2011.04.034
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文献信息

  • Defining oxyanion reactivities in base-promoted glycosylations
    作者:Martin Matwiejuk、Joachim Thiem
    DOI:10.1039/c1cc11690h
    日期:——
    Saccharide oxyanions obtained by base treatment could be employed in glycosylation to give oligosaccharides with high stereo- and regioselectivities.
    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
  • 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(II),(III)和(IV)化物以及硼酸主要促进OH-3的取代,但被(III)和的取代(II)观察到盐主要取代了OH-2。在所有情况下,甲基β-1-鼠李糖喃糖苷的甲基化表现出较高的OH-2反应性。在氯化锡(II),(III)和(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。
  • Phenanthroline‐Catalyzed Stereoretentive Glycosylations
    作者:Fei Yu、Jiayi Li、Paul M. DeMent、Yi‐Jung Tu、H. Bernhard Schlegel、Hien M. Nguyen
    DOI:10.1002/anie.201901346
    日期:2019.5.20
    limitations in synthetic access to well-defined oligosaccharides. Most of the current methods rely on the design of specialized coupling partners to control selectivity during the formation of glycosidic bonds. Reported herein is the use of a commercially available phenanthroline to catalyze stereoretentive glycosylation with glycosyl bromides. The method provides efficient access to α-1,2-cis glycosides. This
    碳水化合物是自然界中许多生物活性分子的基本组成部分。然而,阐明其作用方式的努力往往受到合成获得明确寡糖的限制的阻碍。大多数当前方法依赖于设计专门的偶联配偶体来控制糖苷键形成过程中的选择性。本文报道了使用可商购的咯啉来催化与糖基的立体保留糖基化。该方法提供了对 α-1,2-cis 糖苷的有效获取。该协议已用于八糖佐剂的大规模合成。密度泛函理论计算以及动力学研究表明,该反应通过双 SN 2 机制进行。
  • Investigation of the H-bond-mediated aglycone delivery reaction in application to the synthesis of β-glucosides
    作者:Michael P. Mannino、Jagodige P. Yasomanee、Alexei V. Demchenko
    DOI:10.1016/j.carres.2018.09.003
    日期:2018.12
    In an attempt to refine the H-bond-mediated Aglycone Delivery (HAD) glycosylation reaction reported herein is the synthesis of β-glucosides using an ethylthio glucoside donor equipped with the remote 6-O-picoloyl substituent. Upon examining various aliphatic, aromatic, and carbohydrate acceptors, it was determined that both electronic and steric factors may greatly affect the stereoselectivity of the
    为了改进本文报道的H键介导的糖苷配基(HAD)糖基化反应,是使用配备有远程6-O-吡啶甲基取代基的乙葡萄糖苷供体合成β-葡萄糖苷。在检查了各种脂族,芳族和碳水化合物受体后,确定电子和空间因素均可极大地影响与该供体的HAD反应的立体选择性。
  • 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。
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