(2R,3R)-2-(benzyloxy)-3,6-dihydro-2H-pyran-3-ol | 112482-93-6

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吡喃
• 英文名称: (2R,3R)-2-(benzyloxy)-3,6-dihydro-2H-pyran-3-ol
• 英文别名: (2R,3R)-2-phenylmethoxy-3,6-dihydro-2H-pyran-3-ol
• CAS: 112482-93-6
• 化学式: C₁₂H₁₄O₃
• 分子量: 206.241
• InChiKey: VTCNCOODCDHCPS-VXGBXAGGSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.2
• 重原子数：
  15
• 可旋转键数：
  3
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.33
• 拓扑面积：
  38.7
• 氢给体数：
  1
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  (2R,3R)-2-(benzyloxy)-3,6-dihydro-2H-pyran-3-ol 在 正丁基锂 、 间氯过氧苯甲酸 作用下， 以 二氯甲烷 为溶剂， 反应 20.42h， 生成 benzyl 3-ethynyl-3-deoxy-α-D-xylopyranoside
  参考文献：
  名称：

  Regiospecific ring-opening reactions of benzyl 3,4-anhydro-.alpha.-D-ribopyranoside with nucleophiles: a systematic study

  摘要：

  DOI：

  10.1021/jo00241a012
• 作为产物：
  描述：

  L-(+)-arabinose 在 吡啶 、 硫酸 、 copper(II) sulfate 、 三氟乙酸 、 sodium iodide 、 锌 作用下， 以 四氢呋喃 、 N,N-二甲基甲酰胺 为溶剂， 反应 48.0h， 生成 (2R,3R)-2-(benzyloxy)-3,6-dihydro-2H-pyran-3-ol
  参考文献：
  名称：

  Enantiospecific Synthesis of Both Enantiomers of 2-Benzyloxydihydropyran-3-ones from Arabinose

  摘要：

  本文介绍了对映体选择性合成有用构筑物 (2R)- 和 (2S)-2- 苄氧基-2(H)-吡喃-3(6H)-酮（分别为 12 和 17）的方法。合成 12 的最直接和高产路线是基于从苄基 ²-l- 或 ²-d- 阿拉伯吡喃糖苷（1 和 13）"一步法 "制备苄基 2-O- 乙酰基-阿拉伯吡喃糖苷 3,4-硫代碳酸酯（7 和 14）。通过亚磷酸三甲基酯促进的烯化反应，然后进行 O-去乙酰化和氧化反应，得到了光学纯度为 50%的对映体烯酮 12 和 17。

  DOI：

  10.1055/s-2005-861833

文献信息

• Iodine(V) Reagents in Organic Synthesis. Part 3. New Routes to Heterocyclic Compounds via <i>o</i>-Iodoxybenzoic Acid-Mediated Cyclizations:  Generality, Scope, and Mechanism
  作者：K. C. Nicolaou、P. S. Baran、Y.-L. Zhong、S. Barluenga、K. W. Hunt、R. Kranich、J. A. Vega

  DOI：10.1021/ja012126h

  日期：2002.3.1

  The discovery and development of the o-iodoxybenzoic acid (IBX) reaction with certain unsaturated N-aryl amides (anilides) to form heterocycles are described. The application of the method to the synthesis of delta-lactams, cyclic urethanes, hydroxy amines, and amino sugars among other important building blocks and intermediates is detailed. In addition to the generality and scope of this cyclization

  描述了邻碘氧基苯甲酸 (IBX) 与某些不饱和 N-芳基酰胺（苯胺）反应形成杂环的发现和发展。详细介绍了该方法在 δ-内酰胺、环氨基甲酸酯、羟基胺和氨基糖等重要结构单元和中间体的合成中的应用。除了这种环化反应的一般性和范围外，本文还描述了许多机理研究，表明单电子从苯胺官能团转移到 IBX，并暗示了该反应的基于自由基的机制。
• Stereoselective total synthesis of all the stereoisomers of (+)- and (−)-febrifugine and halofuginone
  作者：Ramu Sridhar Perali、Anjaneyulu Bandi

  DOI：10.1016/j.tetlet.2020.152151

  日期：2020.7

  A convenient method for the total synthesis of all the stereoisomers of febrifugine and halofuginone using D-arabinose and L-arabinose as the key starting materials is reported. Apart from the inherent stereocenters in these pentose sugars, the method utilizes the selective hydrogenolysis of the anomeric O-benzyl group, stereoselective Grignard reaction and Wacker oxidation as the key steps to obtain

  报道了一种以D-阿拉伯糖和L-阿拉伯糖为主要起始原料全合成非来福宁和卤夫酮的所有立体异构体的简便方法。除了这些戊糖中固有的立体中心外，该方法还利用了异头O-苄基的选择性氢解，立体选择性格氏反应和Wacker氧化作为获得总合成重要前体的关键步骤。
• A Convergent Synthesis of the Tetrasaccharide Fragment of the Purported Structure of Durantanin I
  作者：Keehwan Lee、Mijin Kim、Young Ho Rhee

  DOI：10.1002/bkcs.12265

  日期：2021.4

  of the tetrasaccharide subunit in the proposed structure of durantanin I is reported. The signature step is represented by the unique assembly of apiofuranoside ring by the sequential PdRu metal catalysis. Per‐dihydroxylation at the late stage delivered the target compound in a highly efficient manner. In addition, a tetrasaccharide derivative possessing unnatural apiose unit was also synthesized

  据报道，在杜兰丹宁I的拟议结构中四糖亚基的收敛合成。签名步骤通过由连续的Pd apiofuranoside环的独特组件表示 Ru金属催化。在后期进行过二羟基化反应以高效的方式提供了目标化合物。另外，还以与天然形式相当的效率合成了具有非天然apiose单元的四糖衍生物。
• Novel IBX-Mediated Processes for the Synthesis of Amino Sugars and Libraries Thereof
  作者：K. C. Nicolaou、Phil. S. Baran、Yong-Li Zhong、Juan A. Vega

  DOI：10.1002/1521-3773(20000717)39:14<2525::aid-anie2525>3.0.co;2-1

  日期：2000.7.17
• Synthesis and inhibition properties of a series of pyranose derivatives towards a Zn-metalloproteinase from Saccharomonospora canescens
  作者：Pavlina Dolashka-Angelova、Raid J. Abdel-Jalil、Raed A. Al-Qawasmeh、Nicolina Stambolieva、Wolfgang Voelter

  DOI：10.1016/j.carres.2010.07.038

  日期：2010.11

  The Zn-proteinase, isolated from Saccharomonospora canescens (NPS), shares many common features with thermolysin, but considerable differences are also evident, as far as the substrate recognition site is concerned. In substrates of general structure AcylAlaAlaPhe 4NA, this neutral proteinase cleaves only the arylamide bond (non-typical activity of Zn-proteinases), while thermolysin attacks the peptide bond Ala-Phe. Phosphoramidon is a powerful tight binding inhibitor for thermolysin and significantly less specific towards NPS. The K-i-values (65 mu M for NPS vs 0.034 mu M for thermolysin) differ nearly 2000-folds. This implies significant differences in the specificity of the corresponding subsites. The carbohydrate moiety is supposed to accommodate in the S-1-subsite and the series of arabinopyranosides and glucopyranosides (12 compounds), which are assayed as inhibitors in a model system: NPS with SucAlaAlaPhe4NA as a substrate could be considered as mapping the S-1-subsite of NPS. Members of the series with an additional ring (3,4-epithio, 3,4-anhydro-derivatives) turned out to be reasonably good competitive inhibitors (K-i approximate to 0.1-0.2 mM are of the same order as the value for phosphoramidon). The structure of these compounds (8, 9, 11 and 12) seems to fit the size of the S-1-subsite and due to an appropriately oriented OH-group in addition, to protect the active site Zn2+. (C) 2010 Published by Elsevier Ltd.