3-methyl-5H-imidazo[5,1-a]isoindole | 161988-47-2

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 异吲哚及其衍生物
• 英文名称: 3-methyl-5H-imidazo[5,1-a]isoindole
• CAS: 161988-47-2
• 化学式: C₁₁H₁₀N₂
• 分子量: 170.214
• InChiKey: VWQYVEGSPDSPGH-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.7
• 重原子数：
  13
• 可旋转键数：
  0
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.18
• 拓扑面积：
  17.8
• 氢给体数：
  0
• 氢受体数：
  1

反应信息

• 作为产物：
  描述：

  2-甲基咪唑 、 2-溴溴苄 在 palladium diacetate 、 sodium hydride 、 三苯基膦 作用下， 以 N,N-二甲基甲酰胺 、 mineral oil 为溶剂， 反应 16.0h， 以75%的产率得到3-methyl-5H-imidazo[5,1-a]isoindole
  参考文献：
  名称：

  DominoN-苄基化/分子内 CH 芳基化中的双催化：退火氮杂环的区域和化学选择性合成

  摘要：

  通过使用多米诺 N-苄基化/C-H 芳基化反应序列，已开发出一种用于合成稠合氮杂环的通用方法。多米诺骨牌过程的细节和产量与两步文献协议的细节和产量进行了比较。用这种方法合成了难以获得的稠合氮杂吲哚。描述了 PPh3 在此 N-苄基化中前所未有的催化作用。

  DOI：

  10.1002/ejoc.201402395

文献信息

• Synthesis of Bicyclic Imidazoles via [2 + 3] Cycloaddition between Nitriles and Regioselectively Generated α-Imino Gold Carbene Intermediates
  作者：Yuanjing Xiao、Liming Zhang

  DOI：10.1021/ol302102h

  日期：2012.9.7

  The cyclic alpha-imino gold carbene intermediate B is most likely generated in situ via regioselective nitrene transfer from an azido group to a tethered terminal alkyne in the presence of a gold catalyst and at ambient temperature. This highly electrophilic intermediate can react with a weakly nucleophilic nitrile, which is used as the reaction solvent, to deliver a bicyclic imidazole rapidly in an overall bimolecular [2 + 2 + 1] cycloaddition and in mostly serviceable yield. The competing intramolecular Huisgen reaction, although likely also catalyzed by gold, is minimized by using AuCl3 as the catalyst.
• Dual Catalysis in Domino<i>N</i>-Benzylation/Intramolecular C-H Arylation: Regio- and Chemoselective Synthesis of Annelated Nitrogen Heterocycles
  作者：Joydev K. Laha、Neetu Dayal、Swati Singh、Rohan Bhimpuria

  DOI：10.1002/ejoc.201402395

  日期：2014.9

  A general method has been developed for the synthesis of fused nitrogen heterocycles by using a domino N-benzylation/C–H arylation reaction sequence. The details and yields of the domino process were compared with those of the two-step literature protocol. Fused azaindoles, which are otherwise difficult to obtain, were synthesized by using this process. The unprecedented catalytic role of PPh3 in this

  通过使用多米诺 N-苄基化/C-H 芳基化反应序列，已开发出一种用于合成稠合氮杂环的通用方法。多米诺骨牌过程的细节和产量与两步文献协议的细节和产量进行了比较。用这种方法合成了难以获得的稠合氮杂吲哚。描述了 PPh3 在此 N-苄基化中前所未有的催化作用。