(S)-2-(((S)-tert-butoxycarbonylamino)(4-chlorophenyl)methyl)-2-cyanocyclopentanone | 1123681-75-3

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: (S)-2-(((S)-tert-butoxycarbonylamino)(4-chlorophenyl)methyl)-2-cyanocyclopentanone
• 英文别名: tert-butyl N-[(S)-(4-chlorophenyl)-[(1S)-1-cyano-2-oxocyclopentyl]methyl]carbamate
• CAS: 1123681-75-3
• 化学式: C₁₈H₂₁ClN₂O₃
• 分子量: 348.829
• InChiKey: TXUJEUXCGVJJMK-YJBOKZPZSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.6
• 重原子数：
  24
• 可旋转键数：
  5
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.5
• 拓扑面积：
  79.2
• 氢给体数：
  1
• 氢受体数：
  4

反应信息

• 作为产物：
  描述：

  tert-butyl 4-chlorobenzylidenecarbamate 、 2-氰基环戊酮 在 N-[3,5-bis(trifluoromethyl)phenyl]-N′-[(1S,2S)-2-[(11bS)-3,5-dihydro-4H-dinaphth[2,1-c:1′,2′-e]azepin-4-yl]cyclohexyl]urea 作用下， 以 甲苯 为溶剂， 反应 1.17h， 以83%的产率得到(S)-2-(((S)-tert-butoxycarbonylamino)(4-chlorophenyl)methyl)-2-cyanocyclopentanone
  参考文献：
  名称：

  手性双官能尿素催化α-氰基酮与N - Boc醛亚胺的对映和非对映选择性曼尼希型反应

  摘要：

  描述了由手性双官能有机催化剂促进的催化对映选择性亲电曼尼希型反应。在温和的反应条件下，用N -Boc-醛亚胺处理α-氰基酮，得到相应的β-氨基-α-氰基酮，具有非对映选择性（高达syn / anti = 100/0）和出色的对映选择性（高达99） ％ee）。

  DOI：

  10.1002/adsc.200900268

文献信息

• A Carbon Nanotube Confinement Strategy to Implement Homogeneous Asymmetric Catalysis in the Solid Phase
  作者：Kazuki Hashimoto、Naoya Kumagai、Masakatsu Shibasaki

  DOI：10.1002/chem.201406402

  日期：2015.3.9

  recyclable asymmetric catalyst has been developed based on the self‐assembly of a homogeneous catalyst in a fibrous network of multiwalled carbon nanotubes (MWNTs). Dimerization of an amide‐based chiral ligand with a suitable spacer allows for the efficient formation of a heterogeneous catalyst by self‐assembly on addition of Er(OiPr)3. The self‐assembly proceeds in the MWNT fibrous network and small

  基于均相催化剂在多壁碳纳米管（MWNTs）纤维网络中的自组装，已经开发了一种易于回收的不对称催化剂。酰胺基手性配体与合适的间隔基二聚可通过添加Er（O i Pr）3进行自组装，有效地形成非均相催化剂。自组装在MWNT纤维网络中进行，组装好的催化剂的小团簇被限制在MWNT中，产生易于处理的固相催化剂。所得的MWNT受限催化剂在催化不对称曼尼希型反应中表现出良好的催化性能，可以在重复批处理系统和连续流平台中进行。
• Linking Structural Dynamics and Functional Diversity in Asymmetric Catalysis
  作者：Akihiro Nojiri、Naoya Kumagai、Masakatsu Shibasaki

  DOI：10.1021/ja900084k

  日期：2009.3.18

  Proteins, the functional molecules in biological systems, are sophisticated chemical devices that have evolved over billions of years. Their function is intimately related to their three-dimensional structure and elegantly regulated by conformational changes through allosteric regulators and a number of reversible or unidirectional post-translational modifications. This functional diversification in response to external stimuli allows for an orderly and timely progression of intra- and extracellular events. In contrast, enantioselective catalysts generally exhibit limited conformational flexibility and thereby exert a single specific function. Exploiting the features of conformationally flexible asymmetric ligands and the variable coordination patterns of rare earth metals, we demonstrate dynamic structural and functional changes of a catalyst in asymmetric catalysis, leading to two distinct reaction outcomes in a single flask.