(R,E)-ethyl 6-(benzyloxy)-5-hydroxyhex-2-enoate | 848566-35-8

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: (R,E)-ethyl 6-(benzyloxy)-5-hydroxyhex-2-enoate
• 英文别名: ethyl (E,5R)-5-hydroxy-6-phenylmethoxyhex-2-enoate
• CAS: 848566-35-8
• 化学式: C₁₅H₂₀O₄
• 分子量: 264.321
• InChiKey: LVQLSZWIWUJYOX-OAUONFCTSA-N

物化性质

• 沸点：
  399.0±42.0 °C(Predicted)
• 密度：
  1.105±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.9
• 重原子数：
  19
• 可旋转键数：
  9
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.4
• 拓扑面积：
  55.8
• 氢给体数：
  1
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  (R,E)-ethyl 6-(benzyloxy)-5-hydroxyhex-2-enoate 在 四氧化锇 、 氢化奎尼定 1,4-(2,3-二氮杂萘)二醚 甲基磺酰胺 、 4-甲基苯磺酸吡啶 、 potassium carbonate 、 potassium hexacyanoferrate(III) 作用下， 以 水 、 叔丁醇 、 苯 为溶剂， 反应 5.0h， 生成 (3S,4R,6R)-6-((benzyloxy)methyl)-tetrahydro-3,4-dihydroxypyran-2-one
  参考文献：
  名称：

  De Novo Enantioselective Syntheses of Galacto-Sugars and Deoxy Sugars via the Iterative Dihydroxylation of Dienoate

  摘要：

  [GRAPHICS]An efficient route to various sugar lactones has been developed. Key to the overall transformation is the sequential osmium-catalyzed dihydroxylation of 2,4-dienoates. The simplest (one-step/racemic) example of this reaction occurs when the dihydroxylation is performed with aqueous NMO in MeOH. When the first dihydroxylation is performed using the AD-mix procedure, an enantioselective variant results. When a matched AD-mix procedure is used for the second dihydroxylation, an exceedingly diastereo- and enantioselective synthesis of galacto-1,4-lactone results.

  DOI：

  10.1021/ol050044i
• 作为产物：
  描述：

  (2E,4E)-ethyl 6-(benzyloxy)hexa-2,4-dienoate 在 tris(dibenzylideneacetone)dipalladium(0) chloroform complex 、 四氧化锇 、 Hydroquinone 1,4-phthalazinediyl diether 、 三苯基膦 吡啶 、 甲酸 、 甲基磺酰胺 、 potassium carbonate 、 三乙胺 、 potassium hexacyanoferrate(III) 作用下， 以 四氢呋喃 、 二氯甲烷 、 水 、 叔丁醇 为溶剂， 反应 4.0h， 生成 (R,E)-ethyl 6-(benzyloxy)-5-hydroxyhex-2-enoate
  参考文献：
  名称：

  De Novo Enantioselective Syntheses of Galacto-Sugars and Deoxy Sugars via the Iterative Dihydroxylation of Dienoate

  摘要：

  [GRAPHICS]An efficient route to various sugar lactones has been developed. Key to the overall transformation is the sequential osmium-catalyzed dihydroxylation of 2,4-dienoates. The simplest (one-step/racemic) example of this reaction occurs when the dihydroxylation is performed with aqueous NMO in MeOH. When the first dihydroxylation is performed using the AD-mix procedure, an enantioselective variant results. When a matched AD-mix procedure is used for the second dihydroxylation, an exceedingly diastereo- and enantioselective synthesis of galacto-1,4-lactone results.

  DOI：

  10.1021/ol050044i

文献信息

• De novo asymmetric syntheses of C-4-substituted sugars via an iterative dihydroxylation strategy
  作者：Md. Moinuddin Ahmed、George A. O’Doherty

  DOI：10.1016/j.carres.2006.03.024

  日期：2006.7

  highly efficient route to various C-4 substituted sugar lactones has been developed. The key to the overall transformation is the sequential osmium-catalyzed dihydroxylation reaction of substituted 2,4-dienoates and an allylic substitution at the C-4 position. When the Sharpless AD-mix procedure is used in a matched sense for the second dihydroxylation reaction, it results in an exceedingly diastereo-

  已经开发了一种短且高效的途径来制备各种C-4取代的糖内酯。总体转化的关键是取代的2，4-二烯酸酯的催化的二羟基化反应和C-4位置的烯丙基取代。当将Sharpless AD-mix程序以匹配的方式用于第二个二羟基化反应时，会导致几种C-4取代糖的非对映和对映选择性合成。
• De Novo Enantioselective Syntheses of <i>Galacto</i>-Sugars and Deoxy Sugars via the Iterative Dihydroxylation of Dienoate
  作者：Md. Moinuddin Ahmed、Bryan P. Berry、Thomas J. Hunter、Dennis J. Tomcik、George A. O'Doherty

  DOI：10.1021/ol050044i

  日期：2005.2.1

  [GRAPHICS]An efficient route to various sugar lactones has been developed. Key to the overall transformation is the sequential osmium-catalyzed dihydroxylation of 2,4-dienoates. The simplest (one-step/racemic) example of this reaction occurs when the dihydroxylation is performed with aqueous NMO in MeOH. When the first dihydroxylation is performed using the AD-mix procedure, an enantioselective variant results. When a matched AD-mix procedure is used for the second dihydroxylation, an exceedingly diastereo- and enantioselective synthesis of galacto-1,4-lactone results.