摩熵化学
数据库官网
小程序
打开微信扫一扫
首页 分子通 化学资讯 化学百科 反应查询 关于我们
请输入关键词

ethyl 3,4,6-tri-O-benzyl-β-D-glucopyranoside | 35510-36-2

中文名称
——
中文别名
——
英文名称
ethyl 3,4,6-tri-O-benzyl-β-D-glucopyranoside
英文别名
ethyl 3,4,6-tri-O-benzyl-D-glucopyranoside;(2R,3R,4R,5R,6R)-2-ethoxy-4,5-bis(phenylmethoxy)-6-(phenylmethoxymethyl)oxan-3-ol
ethyl 3,4,6-tri-O-benzyl-β-D-glucopyranoside化学式
CAS
35510-36-2
化学式
C29H34O6
mdl
——
分子量
478.585
InChiKey
HAIYFJMVNRQOTK-HWVUQVAQSA-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:
    612.7±55.0 °C(Predicted)
  • 密度:
    1.19±0.1 g/cm3(Predicted)

计算性质

  • 辛醇/水分配系数(LogP):
    3.9
  • 重原子数:
    35
  • 可旋转键数:
    12
  • 环数:
    4.0
  • sp3杂化的碳原子比例:
    0.38
  • 拓扑面积:
    66.4
  • 氢给体数:
    1
  • 氢受体数:
    6

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

反应信息

  • 作为反应物:
    描述:
    ethyl 3,4,6-tri-O-benzyl-β-D-glucopyranosidedibutyl 3,4,6-tri-O-benzyl-2-O-pivaloyl-α-D-mannopyranoside phosphate三氟甲磺酸三甲基硅酯 作用下, 以 二氯甲烷 为溶剂, 反应 1.0h, 以82%的产率得到ethyl 3,4,6-tri-O-benzyl-2-pivaloyl-α-D-mannopyranoside-(1->2)-3,4,6-tri-O-benzyl-β-D-glucopyranoside
    参考文献:
    名称:
    以磷酸糖基和二硫代磷酸三酯为糖基化剂的寡糖合成
    摘要:
    描述了通过 1,2-脱水糖从糖基中高效地一锅合成α-和β-糖基磷酸酯和二硫代磷酸三酯。糖基磷酸酯用作多功能糖基化剂,用于合成 β-葡糖苷、β-半乳糖苷、α-岩藻糖苷、α-甘露糖苷、β-葡糖醛酸和 β-葡糖胺键,在用三甲基甲硅烷基三氟甲磺酸酯 (TMSOTf) 活化后。除了作为 O-糖基化的有效供体,糖基磷酸酯还可有效制备 S-糖苷和 C-糖苷。此外,还讨论了糖基磷酸酯与甲硅烷基化受体的酸催化偶联。糖基二硫代磷酸酯被合成并且也用作糖基供体。这种替代方法提供了与含有糖基的受体的兼容性,以形成 β-糖苷。为了最大限度地减少保护基团的操作,报告了使用糖基磷酸酯的正交和区域选择性糖基化策略。描述了一种正交糖基化方法,包括在硫糖苷受体存在下激活磷酸糖基供体,以及受体介导的区域选择性糖基化策略。此外,公开了利用α-和β-糖基磷酸酯反应性差异的独特糖基化策略。此处概述的程序为在溶液中组装复杂寡糖以及通过单
    DOI:
    10.1021/ja016227r
  • 作为产物:
    描述:
    ethyl 2-O-acetyl-3,4,6-tri-O-benzyl-β-D-glucopyranoside 在 sodium methylate 作用下, 以 甲醇 为溶剂, 生成 ethyl 3,4,6-tri-O-benzyl-β-D-glucopyranoside
    参考文献:
    名称:
    Expedient Stereospecific Synthesis of b-Mannosides from a Glucose-derived 1,2-Orthoester
    摘要:
    A new, stereospecific synthesis of beta-mannosides from glucose-derived 1,2-orthoester has been developed using a simple four-step procedure. For the synthesis of beta-D-Man-(1-->6)-D-Gal, a 6-OH free galactose derivative was glycosylated with the orthoester to yield beta-D-Glc-(1-->6)-D-Gal; the Glc unit of which was epimerized into the beta-mannoside in good yield.
    DOI:
    10.3987/com-99-s100
点击查看最新优质反应信息

文献信息

  • Simple and mild stereoselective O-glycosidation using 1,2-anhydrosugars under neutral conditions
    作者:Devaraj Somasundaram、Kalpattu K. Balasubramanain、Bhagavathy Shanmugasundaram
    DOI:10.1016/j.tetlet.2019.01.049
    日期:2019.3
    of α-d-1,2-anhydrohexapyranoses with phenols proceeded smoothly in ethyl acetate (neutral conditions) in the absence of metal ion catalysts or additives to stereoselectively furnish 1,2-cis-α-aryl glycosides as the major product and 1,2-trans-β-aryl glycosides as the minor product in good yields. Under similar conditions, this ring opening reaction with alcohols afforded exclusively β-alkyl glycosides
    的开环α - d -1,2- anhydrohexapyranoses与酚在没有金属离子的催化剂或添加剂在乙酸乙酯(中性条件)顺利进行立体选择性配料1,2-顺式- α -芳基糖苷作为主要产物和1,2-反式- β -芳基苷作为良好收益次要产物。在相似的条件下,这种与醇的开环反应以优异的产率仅提供β-烷基糖苷。
  • Tandem Epoxidation‐Alcoholysis or Epoxidation‐Hydrolysis of Glycals Catalyzed by Titanium(IV) Isopropoxide or Venturello’s Phosphotungstate Complex
    作者:Pieter Levecque、David W. Gammon、Henok Hadgu Kinfe、Pierre Jacobs、Dirk De Vos、Bert Sels
    DOI:10.1002/adsc.200800079
    日期:2008.7.7
    Venturellos phosphotungstate complex and titanium(IV) isopropoxide [Ti(O-i-Pr)4] were successfully used as catalysts for the epoxidation-alcoholysis of glycals using hydrogen peroxide [H2O2]. Reaction substrates included a range of variously protected glycals and different alcohols were used as solvents. Ti(O-i-Pr)4 was only effective in methanol as solvent, but gave methyl glycosides in high yields
    Venturello的磷钨酸盐络合物和异丙醇钛(IV)[Ti(O- i- Pr)4 ]已成功用作使用过氧化氢[H 2 O 2 ]的环氧乙烷缩合醇解的催化剂。反应底物包括各种受保护的糖基,不同的醇用作溶剂。钛(O- i- Pr)4仅在甲醇作为溶剂中有效,但以高收率和高选择性得到甲基糖苷。事实证明,Ventrollo复合物是一种用途广泛且高效的催化剂。除了在醇类溶剂中进行环氧化-醇解以外,它还显示了在双相条件下的活性,以允许长链醇的糖基化,并且在苄基化的葡糖的立体选择性二羟基化中非常有效。
  • Ionic liquids as phase transfer catalysts: Enhancing the biphasic extractive epoxidation reaction for the selective synthesis of β-O-glycosides
    作者:Cintia C. Santiago、Leticia Lafuente、Rodolfo Bravo、Gisela Díaz、Agustín Ponzinibbio
    DOI:10.1016/j.tetlet.2017.08.033
    日期:2017.9
    Ionic liquids promoted the direct epoxidation of glycals acting as PTC. 1,2-anhydrosugars were prepared by the oxidation of glycals under biphasic conditions with dimethydioxirane generated in situ from oxone/acetone and amphiphilic IL’s as catalysts. β-O-glycosides were synthesized in good yields by the nucleophilic ring opening of epoxy carbohydrate derivatives. Also, 3,4,6-benzyl protected carbohydrates
    离子液体促进了充当PTC的糖基的直接环氧化。通过在两相条件下用二氧环乙烷/丙酮和两亲性IL's原位生成的二甲基二环氧乙烷氧化糖类来制备1,2-脱水糖。通过环氧碳水化合物衍生物的亲核开环,可以高收率合成β-O-糖苷。同样,可以通过该方法制备3,4,6-苄基保护的碳水化合物和β-N-糖苷。
  • Arylboronic Acid-Mediated Glycosylation of 1,2-Dihydroxyglucoses
    作者:Yoshiji Takemoto、Sanae Izumi、Yusuke Kobayashi
    DOI:10.3987/com-18-s(f)28
    日期:——
    electron-deficient arylboronic acid B1 (X = electron withdrawing group) and 1,2-dihydroxy sugar A, would form borate complex E via coordination of glycosyl acceptor C. Successive intramolecular migration of the coordinated sugar C (RO) to an oxocarbenium ion intermediate (E → F) and ligand exchange of F with diol A would provide the desired glycoside G with 1,2-cis-α-selectivity. Alternatively, using arylboronic
    我们使用一系列芳基硼酸探索了四氢2H-吡喃-2,3-二醇或1,2-二羟基糖与各种醇的直接脱水偶联。在这些催化剂中,2-硼-4-三氟甲基苯甲酸有效地促进了四氢-2H-吡喃-2,3-二醇的缩醛化。二茂铁硼酸对 1,2-二羟基糖的糖基化表现出最好的催化活性。主要产品为 1,2-cis-α-D-吡喃葡萄糖苷。引言 糖基化是合成具有一系列生物活性的寡糖和糖肽的关键步骤。尽管关于糖苷键形成反应的报道很多,但新的高效合成方法仍有待从原子经济性、可持续性、产率和选择性等角度进行探索。在常规的糖基化中,糖基供体带有酰氧基,在合适的布朗斯台德酸或路易斯存在下,需要烷硫基、卤素、2,2,2-三氯-1-亚氨基乙氧基和戊-4-烯氧基在异头位置与糖基受体的游离羟基偶联酸(方案 1a)。活化的糖基供体通常不稳定,需要小心制备和储存。此外,糖基化有时需要超过化学计量量的活化剂或添加剂以及反应混合物的冷却或加热以获得高产率
  • Formation of β-Glucosamine and β-Mannose Linkages Using Glycosyl Phosphates
    作者:Obadiah J. Plante、Emma R. Palmacci、Peter H. Seeberger
    DOI:10.1021/ol006566+
    日期:2000.11.1
    [GRAPHICS]Glycosyl phosphates were examined for their utility in the synthesis of challenging glycosidic linkages. beta -Glucosamine glycosides were formed preferentially and in good yield. beta -Mannosides were constructed in high overall yield with modest anomeric selectivity. Interesting solvent and conformational influences on the stereochemical outcome of the coupling reactions were observed.
查看更多