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

2,2,2,-trifluoroethyl 2,3,4,6-tetra-O-benzyl-β-D-glucopyranoside | 141564-18-3

中文名称
——
中文别名
——
英文名称
2,2,2,-trifluoroethyl 2,3,4,6-tetra-O-benzyl-β-D-glucopyranoside
英文别名
(2R,3R,4S,5R,6R)-3,4,5-tris(phenylmethoxy)-2-(phenylmethoxymethyl)-6-(2,2,2-trifluoroethoxy)oxane
2,2,2,-trifluoroethyl 2,3,4,6-tetra-O-benzyl-β-D-glucopyranoside化学式
CAS
141564-18-3
化学式
C36H37F3O6
mdl
——
分子量
622.681
InChiKey
HKEHLFAPILAUPO-CKQPALCZSA-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

计算性质

  • 辛醇/水分配系数(LogP):
    6.6
  • 重原子数:
    45
  • 可旋转键数:
    15
  • 环数:
    5.0
  • sp3杂化的碳原子比例:
    0.33
  • 拓扑面积:
    55.4
  • 氢给体数:
    0
  • 氢受体数:
    9

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

点击查看最新优质反应信息

文献信息

  • Variations on the SnCl4 and CF3CO2Ag-promoted glycosidation of sugar acetates: a direct, versatile and apparently simple method with either α or β stereocontrol
    作者:Jia Lu Xue、Samy Cecioni、Li He、Sébastien Vidal、Jean-Pierre Praly
    DOI:10.1016/j.carres.2009.06.004
    日期:2009.9
    contrast, simple alcohols afforded approximately 1:1 mixtures of 2,3,4,6-tetra-O-acetyl, and 3,4,6-tri-O-acetyl 1,2-cis-glycosides due to anomerization and/or acid-catalyzed fragmentation of 1,2-orthoester intermediates. After reacetylation or deacetylation, acetylated or fully deprotected 1,2-cis-glycosides (alpha-D-gluco, alpha-D-galacto) were obtained in approximately 90% yields by a simple and direct
    与SnCl(4)和CF(3)CO(2)Ag的过乙酸糖(D-葡萄糖,D-半乳糖)的糖基化导致产生1,2-顺式或1,2-反式-糖苷,主要取决于使用的酒精。特别地,由酰基保护的糖基供体预期的1,2-反式-糖苷以高收率与共享特定特征(例如庞大,吸电子基团或聚乙氧基基序)的醇形成。相比之下,由于异构化和//,简单的醇可提供约1:1的2,3,4,6-四-O-乙酰基和3,4,6-三-O-乙酰基1,2-顺式-糖苷的混合物或酸催化的1,2-原酸酯中间体的裂解。在重新乙酰化或脱乙酰化之后,通过简单和直接的方法以约90%的产率获得了乙酰化或完全脱保护的1,2-顺式-糖苷(α-D-葡萄糖,α-D-半乳糖)。
  • An Unexpected FeCl3/C-Catalyzed β-Stereoselective Glycosylation in the Presence of the C(2)-Benzyl Group
    作者:Hong Guo、Wenshuai Si、Juan Li、Guofang Yang、Tianjun Tang、Zhongfu Wang、Jie Tang、Jianbo Zhang
    DOI:10.1055/s-0037-1611801
    日期:2019.8
    described using 2–20 mol% FeCl3/C as the catalyst and benzylated propargyl glycosides as the donors to reach yields up to 96% under mild condition. With an octatomic-ring intermediate at the α-face of FeCl3/C with alkyne of propargyl glycosides, a panel of aglycones comprising aliphatic, alicyclic, unsaturated alcohols, halogenated alcohols, and phenols with different substitution were examined successfully
    抽象的 使用2–20 mol%FeCl 3 / C作为催化剂,苄基炔丙基糖苷作为供体,在温和条件下达到了高达96%的收率,描述了一种不依赖于相邻基团参与的有效且完全β-立体选择性的糖基化反应。在FeCl 3 / Cα面的八原子环中间体与炔丙基糖苷炔基的情况下,成功地检测了一组由脂肪族,脂环族,不饱和醇,卤代醇和具有不同取代基的酚组成的糖苷配基中的排他性β-立体选择性糖基化反应。 使用2–20 mol%FeCl 3 / C作为催化剂,苄基炔丙基糖苷作为供体,在温和条件下达到了高达96%的收率,描述了一种不依赖于相邻基团参与的有效且完全β-立体选择性的糖基化反应。在FeCl 3 / Cα面的八原子环中间体与炔丙基糖苷炔基的情况下,成功地检测了一组由脂肪族,脂环族,不饱和醇,卤代醇和具有不同取代基的酚组成的糖苷配基中的排他性β-立体选择性糖基化反应。
  • Dehydroxy Substitution Reactions of the Anomeric Hydroxy Groups in Some Protected Sugars Initiated by Anodic Oxidation of Triphenylphosphine.
    作者:Hatsuo MAEDA、Sayaka MATSUMOTO、Takashi KOIDE、Hidenobu OHMORI
    DOI:10.1248/cpb.46.939
    日期:——
    The anodic transformation of 2, 3 : 5, 6-di-O-isopropylidene-α-D-mannofuranose (4) and 2, 3, 4, 6-tetra-O-benzyl-D-glucopyranose (5) to the corresponding alkoxy phosphonium ions induces dehydroxy substitution of the sugars at the anomeric positions. Their dehydroxy fluorination and chlorination has been achieved by constant-current electrolysis with CH2Cl2-1, 2-dimethoxyethane/Ph3P/Ph3PH·BF4 and with CH2Cl2/Ph3P/Et4N·Cl, respectively.The electrolysis in the presence of Ph3P has proved to serve O-glycosylation with 4 or 5 as a glycosyl donor, provided that an aliphatic alcohol as a glycosyl acceptor is a weaker nucleophile, such as (CF3)2CHOH, CF3CH2OH, and tert-BuOH, than the protected sugar toward Ph3P+· generated anodically from Ph3P. The present electrochemical reactions for 2, 3, 4, 6-tetra-O-acetyl-D-glucopyranose were unsuccessful, except for the dehydroxy chlorination.
    将 2, 3 : 5, 6-二-O-异亚丙基-α-D-甘露糖(4)和 2, 3, 4, 6-四-O-苄基-D-吡喃葡萄糖(5)阳极转化为相应的烷氧基鏻离子,可诱导糖类在异构体位置发生脱羟基取代。分别用 CH2Cl2-1,2-二甲氧基乙烷/Ph3P/Ph3PH-BF4 和 CH2Cl2/Ph3P/Et4N-Cl 进行恒流电解,实现了它们的脱羟基氟化和氯化。事实证明,以 4 或 5 为糖基供体,在 Ph3P 存在下进行的电解可用于 O-糖基化,前提是作为糖基受体的脂肪醇(如 (CF3)2CHOH、CF3CH2OH 和 tert-BuOH)比受保护的糖对 Ph3P 阳极生成的 Ph3P+- 的亲核力更弱。除了脱羟基氯化反应外,2, 3, 4, 6-四-O-乙酰基-D-吡喃葡萄糖的电化学反应都不成功。
  • Glycosylidene Carbenes. Part 6. Synthesis of alkyl and fluoroalkyl glycosides
    作者:Karin Briner、Andrea Vasella
    DOI:10.1002/hlca.19920750218
    日期:1992.3.18
    55% of the imidate 10. Glycosidation of di-O-isopropylideneglucose 15 leads to 16 (CH2Cl2, r.t.; 65%, α-D/ β-D = 33:67). That glycosidation occurs by initial protonation of the intermediate glycosylidene carbene is evidenced, for strongly acidic alcohols, by the formation of 10, derived from the attack of (CF3)2MeCO− on an intermediate nitrilium ion (Scheme 4), and for weakly acidic alcohols, by the
    描述了在热和/或光解条件下,来自二嗪1的糖苷和一系列醇的合成。产率和非对映选择性取决于醇,溶剂和反应温度的p K HA值。室温下,CH 2 Cl 2中的弱酸性醇(MeOH,EtOH,i-PrOH和t - BuOH,各1当量)的糖基化导致糖苷2–5的收率介于60%至34%之间(方案1和表1)。在-70至-60°时,产率明显更高。在CH 2 Cl 2中,非对映选择性非常低。然而,在THF中,在-70至-60°之间,i-PrOH的糖基化导致比率为8:92的α-D-/β-D- 4。酸性更强的醇,例如CF 3 CH 2 OH,(CF 3)2 CHOH和(CF 3)2 C(Me)OH,以及高度氟化的长链醇CF 3(CF 2)5(CH 2)2 OH(11)与CHF 2(CF 2)9 CH 2 OH(13)反应(CH 2 Cl 2,rt)的收率介于73%和85%之间,主要导致β-D-葡萄糖苷β-D- 6至β-D-
  • Anomeric Thioglycosides Give Different Anomeric Product Distributions under NIS/TfOH Activation
    作者:Helle H. Trinderup、Tatjana L. P. Sandgaard、Line Juul-Madsen、Henrik H. Jensen
    DOI:10.1021/acs.joc.1c03001
    日期:2022.3.18
    The reaction of a series of anomeric thioglycosides with various glycosyl acceptors and N-iodosuccinimide/catalytic triflic acid was investigated with respect to reactivity and anomeric selectivity. In general, β-configured donors were found to give a more β-selective reaction outcome compared to their α-configured counterparts. The relative reactivity of various thioglycosides was measured through
    研究了一系列异头硫苷与各种糖基受体和N-碘代琥珀酰亚胺/催化三氟甲磺酸的反应的反应性和异头选择性。一般而言,发现 β 配置的供体与其 α 配置的对应物相比,会产生更多的 β 选择性反应结果。通过竞争实验测量了各种硫糖苷的相对反应性,确定了以下顺序:苯基、甲苯基、甲基、乙基、异丙基和1-金刚烷基。
查看更多