3a-methyl-3,4-dihydro-2H-pyrrolo[1,2-a]indol-1-one | 1282060-48-3

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吲哚及其衍生物
• 英文名称: 3a-methyl-3,4-dihydro-2H-pyrrolo[1,2-a]indol-1-one
• CAS: 1282060-48-3
• 化学式: C₁₂H₁₃NO
• 分子量: 187.241
• InChiKey: ZMCATGLFXHIBGW-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.6
• 重原子数：
  14
• 可旋转键数：
  0
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.42
• 拓扑面积：
  20.3
• 氢给体数：
  0
• 氢受体数：
  1

反应信息

• 作为产物：
  描述：

  4-甲基-4-戊酸 在 吡啶 、 烟酸乙酯 、 草酰氯 、 氧气 、 palladium diacetate 、 sodium carbonate 、 N,N-二甲基甲酰胺 作用下， 以 1,4-二氧六环 、 二氯甲烷 为溶剂， 70.0 ℃ 、101.33 kPa 条件下， 反应 36.0h， 生成 3a-methyl-3,4-dihydro-2H-pyrrolo[1,2-a]indol-1-one
  参考文献：
  名称：

  Pd(II)-Catalyzed Intramolecular Amidoarylation of Alkenes with Molecular Oxygen as Sole Oxidant

  摘要：

  Stereoselective palladium-catalyzed synthesis of structurally versatile indoline derivatives, using molecular oxygen as the sole oxidant, is described. New C-N and C-C bonds form across an alkene in an intramolecular manner. The C-N bond-forming step proceeds via a syn-amidopalladation pathway. The moderate kinetic isotope effects (intramolecular KIE = 3.56) suggest that electrophilic aromatic substitution occurs in the arylation step.

  DOI：

  10.1021/ol2006083

文献信息

• Pd-Catalyzed Intramolecular Aminoalkylation of Unactivated Alkenes: Access to Diverse <i>N</i>-Heterocycles
  作者：Liu Ye、Kai-Yip Lo、Qiangshuai Gu、Dan Yang

  DOI：10.1021/acs.orglett.6b03295

  日期：2017.1.20

  A highly efficient palladium-catalyzed intramolecular aminoalkylation of unactivated alkenes in the absence of an external ligand and oxidant is described. New C–N and C(sp3)–C(sp3) bonds are formed simultaneously. This general transformation allows for construction of diverse N-heterocycles. Mechanistic studies show that the process may involve a four-membered Pd(alkyl)amido intermediate.

  描述了在不存在外部配体和氧化剂的情况下未活化的烯烃的高效钯催化的分子内氨基烷基化。同时形成新的C–N和C（sp 3）–C（sp 3）键。这种一般的转变允许构建不同的N-杂环。机理研究表明，该过程可能涉及四元Pd（烷基）酰胺基中间体。
• Designed switch from covalent to non-covalent inhibitors of carboxylesterase Notum activity
  作者：Benjamin N. Atkinson、Nicky J. Willis、Yuguang Zhao、Chandni Patel、Sarah Frew、Kathryn Costelloe、Lorenza Magno、Fredrik Svensson、E. Yvonne Jones、Paul V. Fish

  DOI：10.1016/j.ejmech.2023.115132

  日期：2023.5

  palmiteolate pocket with key interactions being aromatic stacking and a water mediated hydrogen bond to the oxyanion hole. These N-acyl indolines 4 will be useful tools for use in vitro studies to investigate the role of Notum in disease models, especially when paired with a structurally related covalent inhibitor (e.g. 4w and 2a). Overall, this study highlights the designed switch from covalent to non-covalent

  N-酰基二氢吲哚4是有效的非共价 Notum 抑制剂，由共价虚拟筛选命中2a开发而成。先导化合物合成简单，在生化 Notum-OPTS 测定中实现了优异的效力，并在基于细胞的 TCF/LEF 报告基因测定中恢复了 Wnt 信号传导。多个高分辨率X射线结构建立了这些抑制剂的共同结合模式，二氢吲哚结合在棕榈醇酸袋的中心，关键相互作用是芳族堆积和水介导的与氧阴离子孔的氢键。这些N -酰基二氢吲哚4将成为体外研究的有用工具，用于研究 Notum 在疾病模型中的作用，特别是与结构相关的共价抑制剂（例如4w和2a）配对时。总的来说，这项研究强调了从共价到非共价 Notum 抑制剂的设计转换，因此说明了命中生成和目标抑制的补充方法。
• Palladium(II)-Catalyzed Intramolecular Tandem Aminoalkylation via Divergent C(sp³)–H Functionalization
  作者：Wei Du、Qiangshuai Gu、Zhongliang Li、Dan Yang

  DOI：10.1021/ja5102739

  日期：2015.1.28

  We have developed a Pd(II)-catalyzed oxidative tandem aminoalkylation via divergent C(sp(3))-H functionalization, affording three- and five-membered-ring fused indolines in good yields under two optimized conditions, respectively. The mechanism studies have indicated that the benzylic C-H cleavage involved in the former transformation is the rate-determining step, while the cleavage of amide α-C-H in the latter is not. This is the first example of a Pd-catalyzed tandem reaction involving C(sp(3))-H activation without the employment of prefunctionalized reagents (e.g., halogenated and boron reagents) and directing groups, representing a green and economic protocol for the construction of N-containing heterocycles.
• Pd(II)-Catalyzed Intramolecular Amidoarylation of Alkenes with Molecular Oxygen as Sole Oxidant
  作者：Kai-Tai Yip、Dan Yang

  DOI：10.1021/ol2006083

  日期：2011.4.15

  Stereoselective palladium-catalyzed synthesis of structurally versatile indoline derivatives, using molecular oxygen as the sole oxidant, is described. New C-N and C-C bonds form across an alkene in an intramolecular manner. The C-N bond-forming step proceeds via a syn-amidopalladation pathway. The moderate kinetic isotope effects (intramolecular KIE = 3.56) suggest that electrophilic aromatic substitution occurs in the arylation step.