methyl 2,3,6-tri-O-benzyl-4-O-(prop-2-ynyl)- α-D-glucopyranoside | 250127-78-7

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: methyl 2,3,6-tri-O-benzyl-4-O-(prop-2-ynyl)- α-D-glucopyranoside
• 英文别名: (2S,3R,4S,5R,6R)-2-methoxy-3,4-bis(phenylmethoxy)-6-(phenylmethoxymethyl)-5-prop-2-ynoxyoxane
• CAS: 250127-78-7
• 化学式: C₃₁H₃₄O₆
• 分子量: 502.607
• InChiKey: HVYIBLRCYOMOJL-SAEUYMBFSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.1
• 重原子数：
  37
• 可旋转键数：
  13
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.35
• 拓扑面积：
  55.4
• 氢给体数：
  0
• 氢受体数：
  6

反应信息

• 作为反应物：
  描述：

  methyl 2,3,6-tri-O-benzyl-4-O-(prop-2-ynyl)- α-D-glucopyranoside 在 四氧化锇 、 N-甲基吲哚酮 、 potassium tert-butylate 作用下， 以 甲醇 、 二甲基亚砜 、 丙酮 为溶剂， 反应 17.5h， 生成 甲基2,3,6-三-O-苄基-ALPHA-D-吡喃葡萄糖苷
  参考文献：
  名称：

  Study of metal and acid catalysed deprotection of propargyl ethers of alcohols via their allenyl ethers

  摘要：

  A new method for the deprotection of prop-2-ynyl ethers 1b-9b is described. Isomerisation of 1b-9b to O-allenyl ethers 1d-9d and deprotection by reaction with Hg(OCOCF3)(2), aq.HCl, aq.CF3CO2H and best by use of a catalytic amount of OsO4 is described to obtain the alcohols 1a-9a in good yield. Application of this method for the deprotection of prop-2-enyl ethers 7c,8c,10c-13c via their corresponding prop-1-enyl ethers 7e,8e,10e-13e to obtain the corresponding alcohols 7a,8a,10a-13a is also described, (C) 1999 Elsevier Science Ltd. All rights reserved.

  DOI：

  10.1016/s0040-4020(99)00631-6
• 作为产物：
  描述：

  methyl 2,3-di-O-benzyl-4,6-O-benzylidene-α-D-glucopyranoside 在 三乙基硅烷 、 sodium hydride 、 三氟乙酸 作用下， 以 二氯甲烷 、 N,N-二甲基甲酰胺 、 mineral oil 为溶剂， 反应 0.5h， 生成 methyl 2,3,6-tri-O-benzyl-4-O-(prop-2-ynyl)- α-D-glucopyranoside
  参考文献：
  名称：

  Co 2（CO）6-炔丙基阳离子通过使用硫代糖苷介导糖基化反应

  摘要：

  我们发现钴-炔丙基阳离子可以通过激活硫糖苷供体来介导糖基化反应。糖-氧杂碳鎓阳离子是通过将硫代糖苷配基转移到钴-炔丙基阳离子上而形成的，该钴-炔丙基阳离子是通过用路易斯酸活化就地从钴-炔丙基化的受体生成的。供体的反应性（武装或解除武装）和路易斯酸的量控制着钴炔丙基的释放速率。

  DOI：

  10.1016/j.tetlet.2017.05.012

文献信息

• Iron and Ruthenium Glycoporphyrins: Active Catalysts for the Synthesis of Cyclopropanes and Aziridines
  作者：Caterina Damiano、Sebastiano Gadolini、Daniela Intrieri、Luigi Lay、Cinzia Colombo、Emma Gallo

  DOI：10.1002/ejic.201900829

  日期：2019.11.10

  the synthesis of iron and ruthenium glycoporphyrins and their catalytic activity in promoting cyclopropanations and aziridinations by using diazo compounds and aryl azides as carbene and nitrene precursors, respectively. The number and location of carbohydrate units on the porphyrin skeleton modulated the shapeand diasteroselectivity of the reactions. Interestingly, while iron(III) glycoporphyrins

  鉴于环丙烷和氮丙啶作为合成结构单元以及生物和药物化合物中的活性部分的相关性，开发用于获得这些产品的可持续合成程序仍然是一项重大挑战。在此，我们报告了铁和钌糖卟啉的合成及其通过使用重氮化合物和芳基叠氮化物作为卡宾和氮烯前体分别促进环丙烷化和氮丙啶化的催化活性。卟啉骨架上碳水化合物单元的数量和位置调节了反应的形状和非对映选择性。有趣的是，虽然铁 (III) 糖卟啉在烯烃环丙烷化反应中表现出良好的性能，但钌 (II) 配合物在氮丙啶化反应中表现更好。
• Glycoporphyrin Catalysts for Efficient C–H Bond Aminations by Organic Azides
  作者：Giorgio Tseberlidis、Paolo Zardi、Alessandro Caselli、Damiano Cancogni、Matteo Fusari、Luigi Lay、Emma Gallo

  DOI：10.1021/acs.organomet.5b00436

  日期：2015.8.10

  We report herein the synthesis of new glycoporphyrin ligands which bear a glucopyranoside derivative on each meso-aryl moiety of the porphyrin skeleton. The saccharide unit is directly conjugated to the porphyrin or a triazole spacer is placed between the carbohydrate and porphyrin ring. The obtained glycoporphyrin ligands were employed to synthesize cobalt(II), ruthenium(II), and iron(III) complexes which were tested as catalysts of C-H bond aminations by organic azides. Two of the synthesized complexes were very efficient in promoting catalytic reactions, and the results achieved indicated that ruthenium and iron complexes show an interesting complementary catalytic activity in several amination reactions. The eco-friendly iron catalyst displayed very good chemical stability in catalyzing the amination reaction for three consecutive runs without losing catalytic activity.
• Ultrasound-assisted synthesis of C-glycosides
  作者：Dilip V. Jarikote、Ciaran O’Reilly、Paul V. Murphy

  DOI：10.1016/j.tetlet.2010.10.113

  日期：2010.12

  A significant rate enhancement was observed in the preparation of allyl and allenyl-C-glycosides from glycosyl acetate or methyl O-glycoside precursors when ultrasound irradiation was employed as an energy source. The C-glycosides were obtained in 77-96% yields in <20 min using TMSOTf as promoter. These results show that sonication provides rapid and efficient access to useful C-glycoside-based building blocks. (C) 2010 Elsevier Ltd. All rights reserved.