4-acetoxy-bicyclo[2.2.2]octan-2,6-dione | 1245907-33-8

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: 4-acetoxy-bicyclo[2.2.2]octan-2,6-dione
• 英文别名: (3,5-Dioxo-1-bicyclo[2.2.2]octanyl) acetate
• CAS: 1245907-33-8
• 化学式: C₁₀H₁₂O₄
• 分子量: 196.203
• InChiKey: UKGPEFAPVXMEBP-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -0.1
• 重原子数：
  14
• 可旋转键数：
  2
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.7
• 拓扑面积：
  60.4
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  4-acetoxy-bicyclo[2.2.2]octan-2,6-dione 在 蔗糖 作用下， 以 乙醇 、 水 为溶剂， 反应 48.0h， 生成 (+)-(1R,4R,6S)-4-acetoxy-6-hydroxy-bicyclo[2.2.2]octan-2-one 、 (1S,4S,6R)-4-acetoxy-6-hydroxy-bicyclo[2.2.2]octan-2-one
  参考文献：
  名称：

  Asymmetric baker’s yeast reductions of bridgehead-substituted bicyclo[2.2.2]octane-2,6-dione derivatives followed by conversion into catalytically active BODOLs for the diethylzinc addition to benzaldehyde

  摘要：

  4-Substituted bicyclo[2.2.2]octane-2,6-diones have been synthesized and tested as substrates in the enantioselective reduction with baker's yeast to give the corresponding hydroxy ketones. It was found that the derivative bearing a TIPSO group at the 4-position was not reduced at all while that with a TBDMSO group gave 87% yield and 46% ee. Other 4-oxy functionalized derivatives were reduced with varying yields (36-87%) and ees (10-82%). The best result was obtained for the 4-Oallyl derivative (80% yield, 82% ee). The hydroxy ketones carrying the benzyloxy and allyloxy groups at the 4-position were converted into the corresponding BODOLs, which were tested as catalysts in the diethylzinc addition to benzaldehyde. In this reaction the ees were 90% and 89%, respectively, which showed that BODOLs substituted at the 4-position are essentially as good catalysts in this reaction as those bearing a hydrogen. (C) 2010 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tetasy.2010.06.003
• 作为产物：
  描述：

  4-acetoxy-bicyclo[2.2.2]oct-5-en-2-one 在 dimethyl sulfide borane 、 水 、 四丙基高钌酸铵 、 N-甲基吗啉氧化物 作用下， 以 乙醚 、 二氯甲烷 为溶剂， 反应 12.0h， 以23%的产率得到4-acetoxy-bicyclo[2.2.2]octan-2,6-dione
  参考文献：
  名称：

  Asymmetric baker’s yeast reductions of bridgehead-substituted bicyclo[2.2.2]octane-2,6-dione derivatives followed by conversion into catalytically active BODOLs for the diethylzinc addition to benzaldehyde

  摘要：

  4-Substituted bicyclo[2.2.2]octane-2,6-diones have been synthesized and tested as substrates in the enantioselective reduction with baker's yeast to give the corresponding hydroxy ketones. It was found that the derivative bearing a TIPSO group at the 4-position was not reduced at all while that with a TBDMSO group gave 87% yield and 46% ee. Other 4-oxy functionalized derivatives were reduced with varying yields (36-87%) and ees (10-82%). The best result was obtained for the 4-Oallyl derivative (80% yield, 82% ee). The hydroxy ketones carrying the benzyloxy and allyloxy groups at the 4-position were converted into the corresponding BODOLs, which were tested as catalysts in the diethylzinc addition to benzaldehyde. In this reaction the ees were 90% and 89%, respectively, which showed that BODOLs substituted at the 4-position are essentially as good catalysts in this reaction as those bearing a hydrogen. (C) 2010 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tetasy.2010.06.003