isobutyl (3S)-3-(methylamino)butanoate | 161011-02-5

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 羧酸及其衍生物
• 英文名称: isobutyl (3S)-3-(methylamino)butanoate
• 英文别名: 2-methylpropyl (3S)-3-(methylamino)butanoate
• CAS: 161011-02-5
• 化学式: C₉H₁₉NO₂
• 分子量: 173.255
• InChiKey: XQYQCIXFGAZQDL-QMMMGPOBSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.4
• 重原子数：
  12
• 可旋转键数：
  6
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.89
• 拓扑面积：
  38.3
• 氢给体数：
  1
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  isobutyl (3S)-3-(methylamino)butanoate 在 sodium tetrahydroborate 、 正丁基锂 、 臭氧 、 三乙胺 、 二异丙胺 作用下， 以 四氢呋喃 、 二氯甲烷 、 水 为溶剂， 反应 1.0h， 生成 Methanesulfonic acid 2-((2S,3S)-1,2-dimethyl-4-oxo-azetidin-3-yl)-ethyl ester
  参考文献：
  名称：

  Synthesis of N-Methyl-N-{(1S)-1-[(3R)-pyrrolidin-3-yl]ethyl}amine

  摘要：

  N-Methyl-N-{(1S)-1-[(3R)-pyrrolidin-3-yl]ethyl}amine (1)(1) is a key intermediate in the preparation of premafloxacin (2), which was under development as an antibiotic for use against pathogens of veterinary importance. This paper describes the development of a practical, efficient, and stereoselective process for the preparation of 1 from isobutyl (3S)-3-{methyl[(1S)-1-phenylethyl]amino}butanoate (5c). The key steps in the synthetic sequence are an asymmetric Michael addition, which yields 5c, and a stereoselective alkylation, which yields (3S,4S)-3-allyl-1,4-dimethylazetidin-2-one (17).

  DOI：

  10.1021/jo0349633
• 作为产物：
  描述：

  isobutyl (3S)-3-{methyl[(1S)-1-phenylethyl]amino}butanoate 在 palladium on activated charcoal 氢气 作用下， 以 异丙醇 为溶剂， 50.0 ℃ 、275.79 kPa 条件下， 反应 11.5h， 以83%的产率得到isobutyl (3S)-3-(methylamino)butanoate
  参考文献：
  名称：

  Synthesis of N-Methyl-N-{(1S)-1-[(3R)-pyrrolidin-3-yl]ethyl}amine

  摘要：

  N-Methyl-N-{(1S)-1-[(3R)-pyrrolidin-3-yl]ethyl}amine (1)(1) is a key intermediate in the preparation of premafloxacin (2), which was under development as an antibiotic for use against pathogens of veterinary importance. This paper describes the development of a practical, efficient, and stereoselective process for the preparation of 1 from isobutyl (3S)-3-{methyl[(1S)-1-phenylethyl]amino}butanoate (5c). The key steps in the synthetic sequence are an asymmetric Michael addition, which yields 5c, and a stereoselective alkylation, which yields (3S,4S)-3-allyl-1,4-dimethylazetidin-2-one (17).

  DOI：

  10.1021/jo0349633