高等学校化学学报 ›› 2021, Vol. 42 ›› Issue (6): 1899.doi: 10.7503/cjcu20200803

• 物理化学 • 上一篇    下一篇

Rh(Ⅱ)催化吲哚衍生物[3+3]环化机理及产物性质分析

田胜侨, 韦美菊()   

  1. 北京科技大学化学与生物工程学院, 化学与化学工程系, 北京 100083
  • 收稿日期:2020-11-10 出版日期:2021-06-10 发布日期:2021-06-08
  • 通讯作者: 韦美菊 E-mail:weimeiju@ustb.edu.cn
  • 作者简介:现在中建隧道重庆信达工程检测技术有限公司工作.
  • 基金资助:
    国家自然科学基金(21873011)

Reaction Mechanism for Rh(Ⅱ)-catalyzed [3+3] Cyclization of Indole Derivatives and Propertis of Product

TIAN Shengqiao, WEI Meiju()   

  1. Department of Chemistry and Chemical Engineering,School of Chemitry and Biological Engineering,University of Science and Technology Beijing,Beijing 100083,China
  • Received:2020-11-10 Online:2021-06-10 Published:2021-06-08
  • Contact: WEI Meiju E-mail:weimeiju@ustb.edu.cn
  • Supported by:
    the National Natural Science Foundation of China(21873011)

摘要:

采用密度泛函理论研究了双铑催化3-重氮吲哚啉-2-亚胺与2H-吖丙因[3+3]内环化反应过程. 该过程主要包含铑金属卡宾体形成、 C―N键活化裂解和吲哚啉[3+3]内环化反应. 研究结果表明, 双铑催化剂发生偶联作用, 促进C-N偶联及2H-吖丙因C―N键裂解; 反应控速步骤为吲哚[3+3]环化反应过程, 铑催化剂在[3+3]环化前脱出. 对产物吡嗪并吲哚类化合物光电性质的分析表明产物具有较低空穴重组能, 吸收与荧光发射光谱存在较大斯托克斯位移. 因此该产物可作为潜在的空穴传输材料和荧光发射材料.

关键词: 3-重氮吲哚啉-2-亚胺, 反应机理, 2H-吖丙因, [3+3]环化反应, 铑催化

Abstract:

The density functional theory was used to study the [3+3] internal cyclization of 3-diazoindolin-2-imide and 2H-azirine catalyzed by dirhodium. The reaction mainly involved the formation of rhodium metal carbene, activation cleavage of C―N bond, and indole [3+3] internal cyclization. The calculation results showed that the rhodium catalyst showed coupling effects to promote C-N coupling and 2H-azirine C―N bond cleavage. The reaction rate-controlled step was occurred during the indole [3+3] cyclization. The rhodium catalyst was released before the [3+3] cyclization. One product had a lower hole recombination energy and a large Stokes shift in the absorption and fluorescence emission spectra, which showed that it could be good hole transport material and fluorescent emission material.

Key words: 3-Diazoindolin-2-imine, Reaction mechanism, 2H-Azirine, [3+3] Cyclization, Rhodium catalysis

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