(S)-3-[(1S,5R)-3,4-dimethyl-2-oxo-5-phenylcyclopent-3-enecarbonyl]-4-isopropyloxazolidin-2-one | 1252612-57-9

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 唑烷类
• 英文名称: (S)-3-[(1S,5R)-3,4-dimethyl-2-oxo-5-phenylcyclopent-3-enecarbonyl]-4-isopropyloxazolidin-2-one
• 英文别名: (4S)-3-[(1S,5R)-3,4-dimethyl-2-oxo-5-phenylcyclopent-3-ene-1-carbonyl]-4-propan-2-yl-1,3-oxazolidin-2-one
• CAS: 1252612-57-9
• 化学式: C₂₀H₂₃NO₄
• 分子量: 341.407
• InChiKey: MOCPXVNWIMNXBO-IKGGRYGDSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.4
• 重原子数：
  25
• 可旋转键数：
  3
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.45
• 拓扑面积：
  63.7
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为产物：
  描述：

  (2Z,4E)-2-benzylidene-1-[(S)-4-isopropyl-2-oxo-oxazolidin-3-yl]-4-methylhex-4-ene-1,3-dione 在 copper(II) bis(trifluoromethanesulfonate) 作用下， 以 二氯甲烷 为溶剂， 以50%的产率得到(S)-3-[(1R,5S)-3,4-dimethyl-2-oxo-5-phenylcyclopent-3-enecarbonyl]-4-isopropyloxazolidin-2-one
  参考文献：
  名称：

  A Reductive-Coupling plus Nazarov Cyclization Sequence in the Asymmetric Synthesis of Five-Membered Carbocycles

  摘要：

  Palladium-mediated hydrostannylation of alkynoyl compounds is combined with Stille-Scott cross-coupling (reductive-coupling) to give one-pot access to divinyl and aryl vinyl ketones, which undergo Nazarov cyclization to give cyclopentenones upon treatment with acid. This reaction sequence has been studied with a variety of different substitution patterns, including the use of oxazolidinone auxiliaries to achieve torquoselectivity in the Nazarov cyclization. Through a combination of good yields and moderate to good levels of stereochemical induction, this approach affords efficient, convergent, and asymmetric access to a variety of different cyclopentanoid systems.

  DOI：

  10.1021/jo100736p