3-methoxy-4-(2,3,4,6-tetra-O-acetyl-β-D-glucopyranosyloxy)acetophenone | 17063-44-4

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: 3-methoxy-4-(2,3,4,6-tetra-O-acetyl-β-D-glucopyranosyloxy)acetophenone
• 英文别名: Androsin-tetraacetat；[(2R,3R,4S,5R,6S)-6-(4-acetyl-2-methoxyphenoxy)-3,4,5-triacetyloxyoxan-2-yl]methyl acetate
• CAS: 17063-44-4
• 化学式: C₂₃H₂₈O₁₂
• 分子量: 496.468
• InChiKey: ZUEZPBIQTMALFY-XNBWIAOKSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.36
• 重原子数：
  35.0
• 可旋转键数：
  9.0
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.52
• 拓扑面积：
  149.96
• 氢给体数：
  0.0
• 氢受体数：
  12.0

反应信息

• 作为反应物：
  描述：

  3-methoxy-4-(2,3,4,6-tetra-O-acetyl-β-D-glucopyranosyloxy)acetophenone 在 盐酸羟胺 、 sodium acetate 作用下， 以 乙醇 为溶剂， 生成
  参考文献：
  名称：

  芳基酮作为钯催化的 Suzuki-Miyaura 联轴器中的芳基供体

  摘要：

  在此，我们报告了通过钯催化的 Suzuki-Miyaura 交叉偶联反应对芳基酮进行的芳基化、烷基化和烯基化。吡啶-恶唑啉配体的使用是断裂无应变 C-C 键的关键。源自药物和天然产物的芳基酮的后期芳基化证明了该协议的合成效用。

  DOI：

  10.1021/acs.orglett.1c03048
• 作为产物：
  描述：

  香草乙酮 、 2,3,4,6-四乙酰氧基-alpha-D-吡喃葡萄糖溴化物 在 sodium hydroxide 作用下， 以 水 、 丙酮 为溶剂， 反应 24.25h， 生成 3-methoxy-4-(2,3,4,6-tetra-O-acetyl-β-D-glucopyranosyloxy)acetophenone
  参考文献：
  名称：

  Molecular Interactions between Barley and Oat β-Glucans and Phenolic Derivatives

  摘要：

  Equilibrium dialysis, molecular modeling, and multivariate data analysis were used to investigate the nature of the molecular interactions between 21 vanillin-inspired phenolic derivatives, 4 bile salts, and 2 commercially available beta-glucan preparations, Glucagel and PromOat, from barley and oats. The two beta-glucan products showed very similar binding properties. It was demonstrated that the two beta-glucan products are able to absorb most phenolic derivatives at a level corresponding to the absorption of bile salts. Glucosides of the phenolic compounds showed poor or no absorption. The four phenolic derivatives that showed strongest retention in the dialysis assay shared the presence of a hydroxyl group in para-position to a CHO group. However, other compounds with the same structural feature but possessing a different set of additional functional groups showed less retention. Principal component analysis (PCA) and partial least-squares regression (PLS) calculations using a multitude of diverse descriptors related to electronic, geometrical, constitutional, hybrid, and topological features of the phenolic compounds showed a marked distinction between aglycon, glucosides, and bile salt retention. These analyses did not offer additional information with respect to the mode of interaction of the individual phenolics with the beta-glucans. When the barley beta-glucan was subjected to enzyme degradation, the ability to bind some but not all of the phenolic derivatives was lost. It is concluded that the binding must be dependent on multiple characteristics that are not captured by a single molecular descriptor.

  DOI：

  10.1021/jf802057v

文献信息

• Diazepinium perchlorate: a neutral catalyst for mild, solvent-free acetylation of carbohydrates and other substances
  作者：Santosh Kumar Giri、Rajesh Gour、K. P. Ravindranathan Kartha

  DOI：10.1039/c6ra28882k

  日期：——

  protecting groups such as TBDMS/TBDPS/Tr ethers and isopropylidene/benzylidene acetals present on a substrate unaffected. Regioselective hydroxyl protection in partially protected carbohydrate derivatives/polyhydroxylic compounds was possible and was proved to be a convenient time-saving alternative to the conventional synthesis of such compounds. Easy preparation of the catalyst, mild reaction conditions

  高氯二氮杂嗪，一种具有优异稳定性的基本中性的有机盐，已被发现非常适用于游离的以及部分保护的糖，酚，硫酚，硫醇和其他醇以及胺的乙酰化。高氯酸二氮杂pin鎓催化的乙酰化反应温和，无有机和无溶剂，并且不影响底物上存在的对酸敏感的保护基团，例如TBDMS / TBDPS / Tr醚和异亚丙基/亚苄基乙缩醛。在部分受保护的碳水化合物衍生物/多羟基化合物中进行区域选择性羟基保护是可行的，并被证明是常规合成此类化合物的一种省时的简便方法。容易制备催化剂，温和的反应条件和对环境有益的方案是该反应的显着特征。苯酚和苯硫酚的乙酰化反应所获得的结果可以通过DFT计算获得的局部亲核指数来合理化。
• New syntheses of plant aryl glycosides as potential gene inducers
  作者：Didier Delay、Francis Delmotte

  DOI：10.1016/0008-6215(90)84294-5

  日期：1990.5

  Abstract Aryl β- d -glycopyranosides have been synthesized by coupling acetovanillone (4-hydroxy-3-methoxyacetophenone) with d -glucose, d -galactose, and maltose; acetosyringone (4-hydroxy-3,5-dimethoxyacetophenone) with d -glucose and d -galactose; syringaldehyde (3-methoxyvanillin) with d -glucose; and syringic acid (4-hydroxy-3,5-dimethoxybenzoic acid) with d -glucose. The Mauthner's procedure

  摘要通过将乙酰香草醛（4-羟基-3-甲氧基苯乙酮）与D-葡萄糖href=https://www.molaid.com/MS_9248 target="_blank">葡萄糖，d-半乳糖和麦芽糖偶联，合成了芳基β-d-吡喃葡萄糖苷。具有D-葡萄糖href=https://www.molaid.com/MS_9248 target="_blank">葡萄糖和d-半乳糖的乙酰丁香酮（4-羟基-3,5-二甲氧基苯乙酮）；带有D-葡萄糖的丁香醛（3-甲氧基香兰素）; 和具有D-葡萄糖href=https://www.molaid.com/MS_9248 target="_blank">葡萄糖的丁香酸（4-羟基-3,5-二甲氧基苯甲酸）。使用在丙酮水溶液中的过乙酰化的糖基溴化物和酚盐的Mauthner方法，得到了乙酰化的β-d-糖苷，将其脱乙酰化。
• DELAY, DIDIER;DELMOTTE, FRANCIS, CARBOHYDR. RES., 198,(1990) N, C. 223-234
  作者：DELAY, DIDIER、DELMOTTE, FRANCIS

  DOI：——

  日期：——