phenyl 3,4,6-tri-O-benzyl-2-deoxy-β-D-glucopyranoside | 124718-81-6

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: phenyl 3,4,6-tri-O-benzyl-2-deoxy-β-D-glucopyranoside
• 英文别名: (2R,3S,4R,6S)-6-phenoxy-3,4-bis(phenylmethoxy)-2-(phenylmethoxymethyl)oxane
• CAS: 124718-81-6
• 化学式: C₃₃H₃₄O₅
• 分子量: 510.63
• InChiKey: NAQUOHOLVPZXRA-IGUZCVLDSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  6.3
• 重原子数：
  38
• 可旋转键数：
  12
• 环数：
  5.0
• sp3杂化的碳原子比例：
  0.27
• 拓扑面积：
  46.2
• 氢给体数：
  0
• 氢受体数：
  5

反应信息

• 作为产物：
  描述：

  3,4,6-tri-O-benzyl-D-glucal epoxide 在 18-冠醚-6 吡啶 、 N-羟基丁二酰亚胺 、 偶氮二异丁腈 、 三苯基氢化锡 、 potassium carbonate 作用下， 以 甲苯 为溶剂， 反应 15.5h， 生成 phenyl 3,4,6-tri-O-benzyl-2-deoxy-β-D-glucopyranoside
  参考文献：
  名称：

  A stereospecific route to 2-deoxy-.beta.-glycosides

  摘要：

  DOI：

  10.1021/jo00018a047

文献信息

• Reagent-Controlled Stereoselective Glycosylation
  申请人：Trustees of Tufts College

  公开号：US20150038689A1

  公开（公告）日：2015-02-05

  Provided are methods for the efficient stereoselective formation of glycosidic bonds, without recourse to prosthetic or directing groups.

  提供了一种高效立体选择性形成糖苷键的方法，无需使用假体或定向基团。
• Copper-mediated anomeric <i>O</i>-arylation with organoboron reagents
  作者：Victoria Dimakos、Jacklyn J. W. Liu、Zhenlu Ge、Mark S. Taylor

  DOI：10.1039/c9ob01022j

  日期：——

  Copper-mediated couplings of arylboroxines with glycosyl hemiacetals furnish O-aryl glycosides via Csp2-O bond formation. The method enables the anomeric O-arylation of protected pyranose and furanose derivatives, and is tolerant of functionalized arylboroxine partners. Whereas mixtures of anomers are formed from glucopyranose, galactopyranose and arabinofuranose hemiacetals, the α-anomer is generated

  铜介导的芳基硼氧烷与糖基半缩醛的偶联通过Csp2-O键的形成提供了O-芳基糖苷。该方法能够使受保护的吡喃糖和呋喃糖衍生物进行异头O-芳基化，并能耐受官能化的芳基环硼氧烷伴侣。由吡喃葡萄糖，半乳糖吡喃糖和阿拉伯呋喃糖半缩醛形成端基异构体的混合物，而α-端基异构体则是从甘露吡喃糖和甘露呋喃糖衍生的底物中选择性产生的。
• Reagent Controlled β-Specific Dehydrative Glycosylation Reactions with 2-Deoxy-Sugars
  作者：John Paul Issa、Dina Lloyd、Emily Steliotes、Clay S. Bennett

  DOI：10.1021/ol4018547

  日期：2013.8.16

  2-deoxy-sugar hemiacetals for glycosylation presumably by converting them into glycosyl sulfonates in situ. By matching the leaving group ability of the sulfonate with the reactivity of the donor, it is possible to obtain β-specific glycosylation reactions. The reaction serves as proof of the principle that, by choosing promoters that can modulate the reactivity of active intermediates, it is possible to place

  N-磺酰基咪唑可能通过将它们原位转化为糖基磺酸盐而活化2-脱氧糖半缩醛以进行糖基化。通过使磺酸盐的离去基团能力与供体的反应性匹配，可以获得β特异性糖基化反应。该反应证明了原理，即通过选择可以调节活性中间体反应性的启动子，可以将糖基化反应完全置于试剂的控制之下。
• Direct preparation of 2-deoxy-D-glucopyranosides from glucals without Ferrier rearrangement
  作者：Veronique Bolitt、Charles Mioskowski、S. G. Lee、J. R. Falck

  DOI：10.1021/jo00310a006

  日期：1990.11
• Arylbis(arylthio)sulfonium salts as reagents for the synthesis of 2-deoxy-.beta.-glycosides
  作者：Gurmit Grewal、Neelu Kaila、Richard W. Franck

  DOI：10.1021/jo00033a033

  日期：1992.3

  The title sulfonium salts undergo electrophilic addition to glycals in the presence of alcohols to form principally beta-glycosides. A substituent effect study has shown that the reagent with a p-tolylthio group is the most face-selective. By variation of the alcohol nucleophile, it has been shown that face selectivity is also dependent on the structure of the nucleophile. One instance of double diastereodifferentiation was uncovered when the racemic alcohol 23.5 was used in a reaction with tribenzyl glucal 22.1. The effect of glycal substitution on the face selectivity has led to the postulation of a heretofore unrecognized and still unexplained stereoelectronic effect.