[(2R,3S,6S)-6-ethoxy-3-methoxycarbonyloxy-3,6-dihydro-2H-pyran-2-yl]methyl methyl carbonate | 162934-15-8

• 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,3S,6S)-6-ethoxy-3-methoxycarbonyloxy-3,6-dihydro-2H-pyran-2-yl]methyl methyl carbonate
• CAS: 162934-15-8
• 化学式: C₁₂H₁₈O₈
• 分子量: 290.27
• InChiKey: ZHPFCBWBTKGIAK-AEJSXWLSSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.3
• 重原子数：
  20
• 可旋转键数：
  9
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.67
• 拓扑面积：
  89.5
• 氢给体数：
  0
• 氢受体数：
  8

反应信息

• 作为反应物：
  描述：

  [(2R,3S,6S)-6-ethoxy-3-methoxycarbonyloxy-3,6-dihydro-2H-pyran-2-yl]methyl methyl carbonate 、 双丙酮葡萄糖 在 tris-(dibenzylideneacetone)dipalladium(0) 、 1,4-双(二苯基膦)丁烷 作用下， 以 四氢呋喃 为溶剂， 反应 24.0h， 以58%的产率得到
  参考文献：
  名称：

  Stereoselective Palladium(0)-Mediated Synthesis of Unsaturated 1,4-Disaccharides

  摘要：

  Unsaturated 1,4-disaccharides are obtained in quite good yields by alkylation of ethyl alpha-O-Delta(2)-glycosides, having a leaving group at C-4, with various 1-hydroxycarbohydrates in the presence of a catalytic amount of palladium(0). The reaction is regio- and stereospecific for alpha-erythro enosides 3 and 5, and only stereospecific in the case of the beta-threo enoside 7, alkylation occurring at C-4 and C-2 in this case.

  DOI：

  10.1080/07328309708006546
• 作为产物：
  描述：

  ethyl 4,6-di-O-acetyl-2,3-dideoxy-α-D-erythrohex-2-enopyranoside 在 吡啶 、 sodium methylate 作用下， 以 甲醇 、 二氯甲烷 为溶剂， 反应 7.0h， 生成 [(2R,3S,6S)-6-ethoxy-3-methoxycarbonyloxy-3,6-dihydro-2H-pyran-2-yl]methyl methyl carbonate
  参考文献：
  名称：

  Stereoselective Palladium(0)-Mediated Synthesis of Unsaturated 1,4-Disaccharides

  摘要：

  Unsaturated 1,4-disaccharides are obtained in quite good yields by alkylation of ethyl alpha-O-Delta(2)-glycosides, having a leaving group at C-4, with various 1-hydroxycarbohydrates in the presence of a catalytic amount of palladium(0). The reaction is regio- and stereospecific for alpha-erythro enosides 3 and 5, and only stereospecific in the case of the beta-threo enoside 7, alkylation occurring at C-4 and C-2 in this case.

  DOI：

  10.1080/07328309708006546

文献信息

• Stereoselective palladium(0)-mediated synthesis of 1,4-disaccharides
  作者：Denis Sinou、Isabelle Frappa、Paul Lhoste、Stanislaw Porwanski、Boguslaw Kryczka

  DOI：10.1016/0040-4039(94)02480-y

  日期：1995.2

  Unsaturated 1,4-disaccharides are obtained in fairly good yields by alkylation of ethyl alpha-O-Delta(2)-glycosides which have a leaving group at the position 4 with various carbohg drates havillg a free anomeric hydroxyl group in the presence of a catalytic amount of palladium(0).