2-O-allyl-3,4,6-tri-O-benzyl-D-glucopyranose

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: 2-O-allyl-3,4,6-tri-O-benzyl-D-glucopyranose
• 英文别名: (3R,4S,5R,6R)-4,5-bis(phenylmethoxy)-6-(phenylmethoxymethyl)-3-prop-2-enoxyoxan-2-ol
• 化学式: C₃₀H₃₄O₆
• 分子量: 490.596
• InChiKey: LYWFBCFPDKAMOH-MPUKMYDRSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.1
• 重原子数：
  36
• 可旋转键数：
  13
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.33
• 拓扑面积：
  66.4
• 氢给体数：
  1
• 氢受体数：
  6

反应信息

• 作为反应物：
  描述：

  2-O-allyl-3,4,6-tri-O-benzyl-D-glucopyranose 在 molecular sieve 、 N,N-二异丙基乙胺 、 silver(l) oxide 作用下， 以 二氯甲烷 、 N,N-二甲基甲酰胺 、 苯 为溶剂， 反应 1.0h， 生成 2-O-allyl-3,4,6-tri-O-benzyl-1-O-(N-methylacetamidoyl)-β-D-glucopyranose
  参考文献：
  名称：

  曲酒四糖和曲酒五糖的合成

  摘要：

  摘要高氯酸银促进的Koenigs合成了曲二糖[α-d -Glc p-（1→2）-α-d -Glc p-（1→2）-d -Glc p]，曲四糖和曲五戊。 -克诺尔型缩合反应，使用3,4,6-三-O-乙酰基-2-O-烯丙基-β-d-吡喃葡萄糖基氯和七-O-乙酰基-β-曲霉生物基氯作为关键中间体。还描述了α-β-Glcp-（1→2）-α-d-Glc p-（1→3）-d -Glc p的合成。

  DOI：

  10.1016/0008-6215(87)80204-5
• 作为产物：
  描述：

  3,4,6-tri-O-benzyl-D-glucopyranose 在 硫酸 、 sodium hydride 作用下， 以 溶剂黄146 、 N,N-二甲基甲酰胺 为溶剂， 生成 2-O-allyl-3,4,6-tri-O-benzyl-D-glucopyranose
  参考文献：
  名称：

  Hung, Shang-Cheng; Wong, Chi-Huey, Angewandte Chemie, 1996, vol. 108, # 22, p. 2829 - 2832

  摘要：

  DOI：

文献信息

• 2-Methoxyethyl Group for Protection of Reducing Hydroxyl Group of Aldose
  作者：Shinkiti Koto、Naohiko Morishima、Kazuhiro Takenaka、Kumi Kanemitsu、Noriko Shimoura、Miyuki Kase、Shizuko Kojiro、Teiko Nakamura、Tomoko Kawase、Shonosuke Zen

  DOI：10.1246/bcsj.62.3549

  日期：1989.11

  A variety of benzylated 1-OH derivatives, having an acetyl or an allyl group, of D-glucose, D-galactose, D-mannose, D-xylose, L-arabinose, L-fucose, and L-rhamnose, were synthesized from the corresponding protected 2-methoxyethyl glycosides through a brief treatment with TiCl4 in dichloromethane and a subsequent hydrolysis of the intermediary 1-Cl derivatives on a silica-gel column.

  多种具有乙酰基或烯丙基的 D-葡萄糖、D-半乳糖、D-甘露糖、D-木糖、L-阿拉伯糖、L-岩藻糖和 L-鼠李糖的苄基化 1-OH 衍生物合成自通过在二氯甲烷中用 TiCl4 短暂处理并随后在硅胶柱上水解中间体 1-Cl 衍生物，得到相应保护的 2-甲氧基乙基糖苷。
• Neighbouring Group Participation During Glycosylation: Do 2-Substituted Ethyl Ethers Participate?
  作者：Daniel J. Cox、Govind P. Singh、Andrew J. A. Watson、Antony J. Fairbanks

  DOI：10.1002/ejoc.201402260

  日期：2014.7

  unexpectedly less stereoselective. NMR spectroscopy revealed that the 2-iodoethyl ether did not participate in any of the glycosylation processes; however, the 2-(phenylseleno)ethyl ether did participate, and β-configured cyclic intermediates were observed. The fact that considerable amounts of β-glycoside product were formed in these latter cases indicated that the predominant reaction pathway to product

  通过六元环中间体进行相邻基团参与 (NGP) 以促进 α-1,2-顺式糖苷键的形成的新保护基团的开发补充了 5 环 NGP 在立体化学结果方面的既定用途。合成了一些糖基供体，它们具有新的 2-碘-和 2-（苯基硒基）乙基醚保护基团，试图通过 6 环 NGP 促进高度 α-选择性糖基化。尽管全副武装的供体产生 α-葡萄糖苷作为主要反应产物，但低温 NMR 研究没有通过观察环化反应中间体来显示 NGP。出乎意料的是，相应的解除武装的糖基供体的立体选择性较低。核磁共振波谱显示，2-碘乙醚不参与任何糖基化过程；然而，2-(苯基硒基)乙醚确实参与了，并且观察到了β-构型的环状中间体。在后一种情况下形成了大量 β-糖苷产物的事实表明，生成产物的主要反应途径不是通过观察到的环状物质发生的。显然，糖基化反应过程中存在良好的平衡，生成产物的反应途径取决于多种因素。值得注意的是，由 6 环 NGP 形成的环化中间体本身不足以确保高水平的
• A NOVEL PROCEDURE FOR THE PREPARATION OF 1-OH SUGAR DERIVATIVES USING 2-METHOXYETHYL GLYCOSIDES
  作者：Naohiko Morishima、Shinkiti Koto、Kumi Kanemitsu、Shonosuke Zen

  DOI：10.1246/cl.1983.1189

  日期：1983.8.5

  Treatment of benzyl-protected 2-methoxyethyl glycopyranosides with titanium tetrachloride followed by hydrolysis provides a new method for the preparation of the corresponding 1-OH sugar derivatives. The present method is shown to be useful for the preparation of mono-O-acetyl- and mono-O-allyl-tri-O-benzyl-D-glucopyranoses.

  用四氯化钛处理苄基保护的 2-甲氧基乙基吡喃糖苷，然后水解，为制备相应的 1-OH 糖衍生物提供了一种新方法。本方法显示可用于制备单-O-乙酰基-和单-O-烯丙基-三-O-苄基-D-吡喃葡萄糖。
• Synthesis of benzyl and allyl ethers of D-glucopyranose
  作者：Patricia A. Gent、Roy Gigg

  DOI：10.1016/s0008-6215(00)83149-3

  日期：1976.7

  2-0-allyl 3, 4-di-o-benzyl-D-glucopyranose (17) and its bis(p-nitrobenzoate); and 3,4-di-O-benzyl-D-glucopyranose (19). The p-nitrobenzoates of compounds 11 and 17 are potential intermediates for the synthesis of the glycolipids of the cytoplasmic membranes of Streptococci.

  以烯丙基3-O-苄基-4,6-O-亚苄基-α-D-吡喃葡萄糖苷为主要中间体，制备了以下结晶化合物：2-O-烯丙基-3,4,6-tri-O-苄基-D-吡喃葡萄糖（11）及其对硝基苯甲酸酯；2,3,5-三-O-苄基-D-阿拉伯呋喃糖（12）和相应的阿拉伯糖醇; 3,4,6-三-O-苄基-α-D-吡喃葡萄糖苷烯丙基（7）; 3,4,6-三-邻-苄基-D-吡喃葡萄糖（8）; 2-0-烯丙基3，4-二-邻-苄基-D-吡喃葡萄糖（17）及其双（对硝基苯甲酸酯）；和3，4-二-O-苄基-D-吡喃葡萄糖（19）。化合物11和17的对硝基苯甲酸酯是链球菌胞质膜糖脂合成的潜在中间体。
• Synthesis of Kojidextrins and Their Protein Conjugates. Incidence of Steric Mismatch in Oligosaccharide Synthesis
  作者：Vince Pozsgay、Eric P. Dubois、Lewis Pannell

  DOI：10.1021/jo962300y

  日期：1997.5.1

  Kojidextrins are biologically important oligosaccharides that are involved in many physiological processes including protein glycosylation and bacterial growth. As part of our project to explore the role kojidextrins may play in bacterial pathogenesis, here we report Synthetic routes to kojibiose (54), -triose (58), -tetraose (64), and -pentaose (69) equipped with alpha-linked (hydrazinocarbonyl)-pentyl aglycon, using linear and convergent strategies. In the search for a rapid convergent strategy for the construction of extended kojidextrins, four kojibiose donors (1-4) were synthesized that contain acyl- and ether-type protecting groups in various ratios. These were tested to probe the influence of diverse protecting group assemblies on their glycosyl donor ability. Attempted condensation of these donors with kojitriose and -tetraose accepters failed to give the desired products apparently because of steric mismatch between the donor and the acceptor moieties. A one-pot procedure was developed for the covalent attachment of the synthetic saccharides through their hydrazido group to human serum albumin (HSA) using Tietze's squarate method to give neoglycoproteins containing up to 28 saccharide units per HSA.