ethyl 3-hydroxy-5-(methoxy(methyl)amino)-2,2-dimethyl-5-oxopentanoate

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 羟基酸及其衍生物
• 英文名称: ethyl 3-hydroxy-5-(methoxy(methyl)amino)-2,2-dimethyl-5-oxopentanoate
• 英文别名: ethyl (3R)-3-hydroxy-5-[methoxy(methyl)amino]-2,2-dimethyl-5-oxopentanoate
• 化学式: C₁₁H₂₁NO₅
• 分子量: 247.291
• InChiKey: LCYQIUWKVVCZLU-MRVPVSSYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  0.2
• 重原子数：
  17
• 可旋转键数：
  7
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.82
• 拓扑面积：
  76.1
• 氢给体数：
  1
• 氢受体数：
  5

反应信息

• 作为产物：
  描述：

  二甲基丙二酸二乙酯 在 [RuCl(benzene)(S)-SunPhos]Cl 、 氢气 、 lithium diisopropyl amide 作用下， 以 四氢呋喃 、 正己烷 为溶剂， -50.0~70.0 ℃ 、2.0 MPa 条件下， 反应 22.5h， 生成 ethyl 3-hydroxy-5-(methoxy(methyl)amino)-2,2-dimethyl-5-oxopentanoate
  参考文献：
  名称：

  Ru-Catalyzed Asymmetric Hydrogenation of 3-Oxoglutaric Acid Derivatives via Solvent-Assisted Pinpoint Recognition of Carbonyls in Close Chemical Propinquity

  摘要：

  Upon comparison of hydrogenation rates of various beta-ketocarboxylic acid derivatives, beta-ketoamides were found to be hydrogenated slightly faster than beta-ketoesters in EtOH in the presence of [RuCl(benzene)(S)-SunPhos]Cl at 70 degrees C with 20 bar of hydrogen. In THF these differences were so sharpened that beta-ketoamides were hydrogenated even faster than In EtOH while the esters were extremely slow. Based on these findings, a series of 3-oxoglutaric acid derived with ester and amide moieties on the two ends were hydrogenated to 3-hydroxyl products with high enantioselectivities.

  DOI：

  10.1021/ol201406w

文献信息

• Ru-Catalyzed Asymmetric Hydrogenation of 3-Oxoglutaric Acid Derivatives via Solvent-Assisted Pinpoint Recognition of Carbonyls in Close Chemical Propinquity
  作者：Wanfang Li、Xin Ma、Weizheng Fan、Xiaoming Tao、Xiaoming Li、Xiaomin Xie、Zhaoguo Zhang

  DOI：10.1021/ol201406w

  日期：2011.8.5

  Upon comparison of hydrogenation rates of various beta-ketocarboxylic acid derivatives, beta-ketoamides were found to be hydrogenated slightly faster than beta-ketoesters in EtOH in the presence of [RuCl(benzene)(S)-SunPhos]Cl at 70 degrees C with 20 bar of hydrogen. In THF these differences were so sharpened that beta-ketoamides were hydrogenated even faster than In EtOH while the esters were extremely slow. Based on these findings, a series of 3-oxoglutaric acid derived with ester and amide moieties on the two ends were hydrogenated to 3-hydroxyl products with high enantioselectivities.