Chem. J. Chinese Universities ›› 2023, Vol. 44 ›› Issue (2): 20220597.doi: 10.7503/cjcu20220597

• Organic Chemistry • Previous Articles     Next Articles

Dominoes Type Reaction of Spatially Close Diamides and Their Applications in Organic Synthesis

ZHANG Jialing1, WU Yuanyuan2, ZHANG Man1, TAO Zhengyu1, TIAN Yongpan1, ZHANG Qianfeng1, TONG Bihai1(), HE Gufeng2(), KONG Hui1()   

  1. 1.Key Laboratory of Metallurgical Emission Reduction & Resources Recycling,Ministry of Education,Institute of Molecular Engineering and Applied Chemistry,School of Metallurgy Engineering,Anhui University of Technology,Maanshan 243002,China
    2.Department of Electronic Engineering,Shanghai Jiao Tong University,Shanghai 200240,China
  • Received:2022-09-07 Online:2023-02-10 Published:2022-11-14
  • Contact: TONG Bihai E-mail:tongbihai@ahut.edu.cn;gufenghe@sjtu.edu.cn;konghui@ahut.edu.cn
  • Supported by:
    the National Natural Science Foundation of China(21572001);the Anhui Special Support Plan, China(T000609);the Distinguished Professor of the Wanjiang Scholars Project of China and the Scientific Research Project of Anhui Provincial Department of Education, China(YJS20210332)

Abstract:

A monoaddition reaction of spatially close diamides and Grignard reagents under mild conditions was found. In some case, kinetic-controlled products and thermodynamic-controlled products were obtained at the same time. The key step involved an intramolecular nucleophilic reaction. 4-Substituted phthalazinones were conveniently synthesized by this method. Pure red-light-emitting tris-cyclometalated iridium(Ⅲ) complex based on phthalazine building blocks that exhibit high efficiency[maximum external quantum efficiency(EQEmax)=10.3%] had also been synthesized.

Key words: Phthalazinone, Bis-Weinreb amide, Grignard reagent, Iridium(Ⅲ) complex, Organic light-emitting diode(OLED)

CLC Number: 

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