4-Biphenylyl 2,3,4,6-tetra-O-acetyl-β-D-glucopyranoside | 32742-31-7

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: 4-Biphenylyl 2,3,4,6-tetra-O-acetyl-β-D-glucopyranoside
• 英文别名: p-biphenylyl 2,3,4,6-tetra-O-acetyl-β-D-glucopyranoside；p-Phenylphenyl 2,3,4,6-tetra-O-acetyl-β-D-glucopyranoside；biphenyl-4-yl-(tetra-O-acetyl-β-D-glucopyranoside)；Biphenyl-4-yl-(tetra-O-acetyl-β-D-glucopyranosid)；[(2R,3R,4S,5R,6S)-3,4,5-triacetyloxy-6-(4-phenylphenoxy)oxan-2-yl]methyl acetate
• CAS: 32742-31-7
• 化学式: C₂₆H₂₈O₁₀
• 分子量: 500.502
• InChiKey: KLBBFLZPOGVHGX-WSGIOKLISA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4
• 重原子数：
  36
• 可旋转键数：
  12
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.38
• 拓扑面积：
  124
• 氢给体数：
  0
• 氢受体数：
  10

反应信息

• 作为反应物：
  描述：

  4-Biphenylyl 2,3,4,6-tetra-O-acetyl-β-D-glucopyranoside 在 乙醇 、 氨 作用下， 生成 4-biphenylyl β-D-glucopyranoside
  参考文献：
  名称：

  The Cleavage of Glycosides by Catalytic Hydrogenation¹

  摘要：

  DOI：

  10.1021/ja01322a060
• 作为产物：
  描述：

  对羟基联苯 、 2,3,4,6-tetra-O-acetyl-d-glucopyranosyl trichloroacetimidate 在 三氟化硼乙醚 作用下， 以 二氯甲烷 为溶剂， 反应 3.0h， 以90%的产率得到4-Biphenylyl 2,3,4,6-tetra-O-acetyl-β-D-glucopyranoside
  参考文献：
  名称：

  用糖基亚胺酯重新研究酚O-糖基化反应，BF3·OEt2是比TMSOTf更好的催化剂

  摘要：

  以BF（3）·OEt（2）为催化剂，苯酚与带有2-O-参与基团的糖基三氯乙酰基亚氨酸盐（或N-苯基三氟乙酰基亚氨酸盐）的糖基化反应通常会产生所需的1,2-反式-O-糖苷极佳的收率，而不会形成1,2-顺式端基异构体。然而，以TMSOTf为催化剂，相应的酚O-糖基化的结果高度依赖于酚的亲核性。苯酚的亲核性越少，生成的1，2-顺式-O-糖苷含量越高，副产物就越多。在所有这些酚O-糖基化反应中，发现1,2-原酸酯是低温（<-70°C）的主要产物，在较高温度下转化为最终产物。BF（3）·OEt（2）是促进1转化的有效催化剂 将2-原酸酯转化为相应的1，2-反式-O-糖苷。然而，在TMSOTf存在下，1,2-原酸酯可被转化为三氟甲磺酸二恶唑鎓和三氟甲磺酸糖基酯，这些中间体可能与糖基氧碳鎓相关物种处于平衡状态，最终形成α/β-O-的最终混合物。苷和副产物。

  DOI：

  10.1016/j.carres.2012.09.025

文献信息

• Reliable method for the synthesis of aryl β-<scp>D</scp>-glucopyranosides, using boron trifluoride–diethyl ether as catalyst
  作者：Elly Smits、Jan B. F. N. Engberts、Richard M. Kellogg、Henk A. van Doren

  DOI：10.1039/p19960002873

  日期：——

  Stereospecific formation of aryl 2,3,4,6-tetra-O-acetyl-β-D-glucopyranosides was achieved by reaction of penta-O-acetyl-β-D-glucose 1 with substituted phenols in the presence of boron trifluoride. Yields of the purified products varied from 52–85%. Benzyl alcohol could also be glucosylated using similar conditions. All products were purified by crystallization from ethanol. The purity and the anomeric

  在三氟化硼的存在下，通过五-O-乙酰基-β - D-葡萄糖1与取代酚的反应，实现了立体异构形成芳基2,3,4,6-四-O-乙酰基-β - D-吡喃葡萄糖苷。纯化产物的产率为52-85％。苯甲醇也可以在类似条件下进行糖基化。通过从乙醇中结晶纯化所有产物。通过1 H和13 C NMR光谱，熔点和旋光度测定产物的纯度和端基异构体构型。
• Copper-mediated O-arylation of lactols with aryl boronic acids
  作者：Jing-Jing Sui、De-Cai Xiong、Xin-Shan Ye

  DOI：10.1016/j.cclet.2019.06.014

  日期：2019.8

  Abstract An efficient and novel methodology to access phenolic glycosides has been established by using copper-mediated coupling reaction of aryl boronic acids with hemiacetals. The reaction takes place normally in the presence of Cu(OAc)2 (1.0 equiv.) and pyridine (2.0 equiv.) at 40 °C. This protocol distinguishes itself by wide substrate scope, operational simplicity and giving rise to a myriad of

  摘要：通过铜介导的芳基硼酸与半缩醛的偶联反应，建立了一种有效且新颖的方法来获取酚糖苷。反应通常在40℃下在Cu（OAc）2（1.0当量）和吡啶（2.0当量）存在下进行。该方案通过广泛的底物范围，操作简便性以及以良种至极好的收率产生大量酚类糖苷而独树一帜。
• Non-Amphiphilic Carbohydrate Liquid Crystals Containing an Intact Monosaccharide Moiety
  作者：E. Smits、J. B.F.N. Engberts、R. M. Kellogg、H. A. Van Doren

  DOI：10.1080/10587259508038691

  日期：1995.2

  A chiral rigid moiety which forms the basis of a new class of non-amphiphilic carbohydrate liquid crystals has been developed. This moiety contains a fully intact glucopyranose ring embedded in a trans-decalin structure. The original carbohydrate is substituted so that only two hydroxyl groups are left, resulting in derivatives with reduced hydrophilicity. The substituents R and X-R' on the 4,6-O-ylidene beta-D-glucopyranoside are in the equatorial position and can be varied extensively, using straightforward synthetic procedures. Investigations as to the requirements for R and X-R' for inducing liquid-crystalline behavior have shown that at least one of the substituents should contain a large, polarizable aromatic moiety. An aromatic Schiff base fulfils this requirement.
• Phase-Transfer Catalyzed Synthesis of Acetylated Aryl β-D-Glucopyranosides and Aryl β-D-Galactopyranosides
  作者：D. Dess、H. P. Kleine、D. V. Weinberg、R. J. Kaufman、R. S. Sidhu

  DOI：10.1055/s-1981-29631

  日期：——
• Jermyn, Australian Journal of Chemistry, 1955, vol. 8, p. 403,407
  作者：Jermyn

  DOI：——

  日期：——