p-tolyl 2,3,4,6-tetra-O-benzoyl-1-thio-β-D-glucopyranoside | 172847-85-7

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: p-tolyl 2,3,4,6-tetra-O-benzoyl-1-thio-β-D-glucopyranoside
• 英文别名: p-methylphenyl 2,3,4,6-tetra-O-benzoyl-1-thio-β-D-glucopyranoside；tolyl 2,3,4,6-tetra-O-benzoyl-1-thio-β-D-glucopyranoside；[(2R,3R,4S,5R,6S)-3,4,5-tribenzoyloxy-6-(4-methylphenyl)sulfanyloxan-2-yl]methyl benzoate
• CAS: 172847-85-7
• 化学式: C₄₁H₃₄O₉S
• 分子量: 702.782
• InChiKey: QZUOKKMGLFXBME-WIESDFACSA-N

物化性质

• 熔点：
  186-188 °C(Solv: ethanol (64-17-5))
• 沸点：
  809.6±65.0 °C(Predicted)
• 密度：
  1.35±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  9
• 重原子数：
  51
• 可旋转键数：
  15
• 环数：
  6.0
• sp3杂化的碳原子比例：
  0.17
• 拓扑面积：
  140
• 氢给体数：
  0
• 氢受体数：
  10

反应信息

• 作为反应物：
  描述：

  p-tolyl 2,3,4,6-tetra-O-benzoyl-1-thio-β-D-glucopyranoside 在 硫酸 N-碘代丁二酰亚胺 、 水 作用下， 以 二氯甲烷 为溶剂， 反应 0.5h， 以87%的产率得到2,3,4,6-tetra-O-benzoyl-D-glucopyranose
  参考文献：
  名称：

  NIS/H2SO4–Silica: a mild and efficient reagent system for the hydrolysis of thioglycosides

  摘要：

  Chemo selective hydrolysis of a variety of thioglycosides in the presence of a wide range of protecting groups has been achieved by using N-iodosuccinimide and H2SO4 immobilized on silica in good to excellent yields. (c) 2006 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.carres.2006.09.005
• 作为产物：
  描述：

  1,2,3,4,6-戊-O-苯甲酰基-D-吡喃葡萄糖苷 在 sodium meta bi sulfate 、 C₅₁H₄₂NOP₂Pd⁽¹⁺⁾*CH₃O₃S^(1-) 、 氢溴酸 、 溶剂黄146 、 三乙胺 作用下， 以 四氢呋喃 、 二氯甲烷 、 水 、 丙酮 为溶剂， 反应 9.0h， 生成 p-tolyl 2,3,4,6-tetra-O-benzoyl-1-thio-β-D-glucopyranoside
  参考文献：
  名称：

  室温下使用氨基联苯Palladacycle催化剂对1-硫代硫醇和硫醇的立体定向钯催化的芳基化，烯基化和炔基化

  摘要：

  通过使用Palladacycle预催化剂G3-XantPhos，开发了一种通用且有效的协议，用于钯催化的单糖基和聚糖基硫醇官能化。与c  S键形成反应，在室温下用各种官能化（杂）芳基- ，链烯基，和炔基卤化物快速地实现。在所研究的所有情况下，对亲电子体的官能团耐受性通常都很高，并且硫代糖苷的端基异构体选择性也很高。新的硫亲核试剂，如硫酚，烷基硫醇和硫代氨基酸（半胱氨酸）也已成功偶联，从而导致了迄今报道的最通用和最实用的硫醇官能化方法。

  DOI：

  10.1002/chem.201501050
• 作为试剂：
  描述：

  甲基2,3,4-三-O-苄基-α-D-吡喃葡萄糖苷 、 C₂₃H₂₅N₃O₆S 在 N-碘代丁二酰亚胺 、 三氟甲磺酸 、 p-tolyl 2,3,4,6-tetra-O-benzoyl-1-thio-β-D-glucopyranoside 作用下， 以 二氯甲烷 为溶剂， 反应 3.0h， 生成 methyl (2S,3S,4R,5R,6R)-3-acetyloxy-5-azido-6-[[(2R,3R,4S,5R,6S)-6-methoxy-3,4,5-tris(phenylmethoxy)oxan-2-yl]methoxy]-4-phenylmethoxyoxane-2-carboxylate 、
  参考文献：
  名称：

  Exploring and Exploiting the Reactivity of Glucuronic Acid Donors

  摘要：

  The relative reactivity of glucuronic acid esters was established in a series of competition experiments, in which two thioglucoside and/or thioglucuronic acid ester donors competed for a limited amount of activator (NIS-TfOH). Although glucuronic add esters are often considered to be of very low reactivity, the series of competition reactions revealed that the reactivity of the glucuronic acid esters studied is sufficient to provide productive glycosylation reactions. The latter is illustrated in the synthesis of two Streptococcus pneumoniae trisaccharides, in which the applicability of the two similarly protected frame-shifted thiociisaccharide donors, Glc-GlcA and GlcA-Glc, were compared. The Glc-GlcA disaccharide, featuring the glucuronic acid donor moiety, proved to be the most productive in the assembly of a protected S. pneumoniae trisaccharide.

  DOI：

  10.1021/jo201586r

文献信息

• Iron(<scp>iii</scp>) chloride modulated selective 1,2-trans glycosylation based on glycosyl trichloroacetimidate donors and its application in orthogonal glycosylation
  作者：Mana Mohan Mukherjee、Nabamita Basu、Rina Ghosh

  DOI：10.1039/c6ra21859h

  日期：——

  FeCl3 can also modulate the 1,2-trans selectivity of the reaction of 2-O-alkylated gluco- and galacto-pyranosyl trichloroacetimidates with phenolic compounds leading to the generation of the corresponding β-O-aryl glycosides in excellent yield and selectivity. Apart from these the present methodology has been successfully utilized for double glycosylation and orthogonal glycosylation reactions along

  人们已经集中研究了一种新的糖基化方法，该方法可从10摩尔％的FeCl 3介导的相应的三氯乙酰亚氨酸酯供体有效立体选择性合成β-葡萄糖和半乳糖苷。FeCl 3也已应用于许多基于葡萄糖，半乳糖，甘露糖和鼠李糖的三氯乙酰亚氨酸酯供体，这些供体在C-2位置掺入了各种保护基，从而制备了多种具有优异的1,2-反式选择性的二糖和三糖。FeCl 3还可调节2- O反应的1,2-反式选择性-烷基化的葡糖基和半乳糖基-吡喃糖基三氯乙酰亚胺酸酯与酚类化合物的结合，可导致以优异的产率和选择性生成相应的β- O-芳基糖苷。除此之外，本方法已成功地用于双糖基化和正交糖基化反应，以及在三锅合成的一锅三组分正交糖基化反应中的应用。
• Urea–hydrogen peroxide prompted the selective and controlled oxidation of thioglycosides into sulfoxides and sulfones
  作者：Adesh Kumar Singh、Varsha Tiwari、Kunj Bihari Mishra、Surabhi Gupta、Jeyakumar Kandasamy

  DOI：10.3762/bjoc.13.113

  日期：——

  A practical method for the selective and controlled oxidation of thioglycosides to corresponding glycosyl sulfoxides and sulfones is reported using urea-hydrogen peroxide (UHP). A wide range of glycosyl sulfoxides are selectively achieved using 1.5 equiv of UHP at 60 °C while corresponding sulfones are achieved using 2.5 equiv of UHP at 80 °C in acetic acid. Remarkably, oxidation susceptible olefin

  已经报道了使用脲-过氧化氢（UHP）将硫代糖苷选择性和控制地氧化为相应的糖基亚砜和砜的实用方法。在60°C下使用1.5当量的UHP选择性地获得了广泛的糖基亚砜，而在80°C下使用2.5当量的UHP在乙酸中实现了相应的砜。显着地，发现在硫化物的氧化过程中对氧化敏感的烯烃官能团是稳定的。
• Mycobacterium tuberculosis β-gentiobiosyl diacylglycerides signal through the pattern recognition receptor Mincle: total synthesis and structure activity relationships
  作者：Mark B. Richardson、Shota Torigoe、Sho Yamasaki、Spencer J. Williams

  DOI：10.1039/c5cc04773k

  日期：——

  Gentiobiosyl diglycerides fromMycobacterium tuberculosisare shown to signal through Mincle; structure–activity relationships reveal analogues with enhanced potency.

  结核分枝杆菌中的甘露二糖基二甘油酸被证明通过Mincle信号传导；结构-活性关系揭示出具有增强效力的类似物。
• Co 2 (CO) 6 -propargyl cation mediates glycosylation reaction by using thioglycoside
  作者：Meng-jie Xia、Wang Yao、Xiang-bao Meng、Qing-hua Lou、Zhong-jun Li

  DOI：10.1016/j.tetlet.2017.05.012

  日期：2017.6

  glycosylation reaction by activating the thioglycoside donor. The glyco-oxacarbenium cation was formed by transferring the thio-aglycone to the cobalt-propargyl cation that was generated from the cobalt-propargylated acceptor in situ via the activating with Lewis acid. The reactivity of the donor (Armed or dis-armed) and the amount of the Lewis acid control the releasing rate of the cobalt-propargyl group.

  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。
• Triflic Imide‐Catalyzed Glycosylation of Disarmed Glycosyl <i>ortho</i> ‐Isopropenylphenylacetates and <i>ortho</i> ‐Isopropenylbenzyl Thioglycosides
  作者：Zhi Qiao、Peng Wang、Jingxuan Ni、Dongwei Li、Yao Sun、Tiantian Li、Ming Li

  DOI：10.1002/ejoc.202101367

  日期：2022.1.17

  ortho-isopropenylphenylacetates and ortho-isopropenylbenzyl thioglycosides has been established. Mechanistically, the reaction involves the preferential protonation of the isopropenyl group, the generation of reactive glycosylating species by the cation-triggering intramolecular cyclization, and the ensuing glycosylation event.

  已经建立了 Tf 2 NH 催化去武装糖基邻-异丙烯基苯乙酸酯和邻-异丙烯基苄基硫苷的糖基化的有效方案。从机理上讲，该反应涉及异丙烯基的优先质子化，通过阳离子触发的分子内环化产生反应性糖基化物质，以及随后的糖基化事件。