- Organic optoelectronic functional material and application thereof
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The invention belongs to the field of organic electroluminescent devices, and discloses an organic electroluminescent material containing a diquinolyl structure and application of the organic electroluminescent material. By using the organic electroluminescent material provided by the invention as an electron transport material, the produced device has good electron mobility and relatively-balanced current carrier transmission property, and the improvement efficiency of the device is facilitated. In addition, the organic electroluminescent material provided by the invention also can be furtherblended with a hole type main body material so as to form an exciplex; by using the exciplex as a co-subject material, the efficiency and the stability of the produced device are both improved obviously.
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Paragraph 0088-0090
(2019/01/06)
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- A highly practical and convenient halogenation of fused heterocyclic N-oxides
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A novel, simple and practical method for the regioselective halogenation of fused heterocyclic N-oxides has been developed. It employs Vilsmeier reagent, generated in situ by POX3and DMF, as both the activating agent and the nucleophilic halide source. The method is amenable across a broad range of substrates, including quinolines, isoquinolines and the diazine N-oxides, possessing a variety of substitution patterns. Furthermore, all of the reagents associated are cheap and easy to obtain. The potential extension of this method to a one-pot oxidation/halogenation sequence that obviates the need for isolation of the N-oxide intermediates is also presented.
- Wang, Dong,Wang, Yuxi,Zhao, Junjie,Li, Linna,Miao, Longfei,Wang, Dong,Sun, Hua,Yu, Peng
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p. 5762 - 5768
(2016/08/30)
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- Redox-triggered interconversion between piperidine chair conformations in a Cu(I/II) complex
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A redox-induced six-membered ring chair-chair conformational interconversion in a copper-coordinated trans-piperidine tripodal ligand is demonstrated. Each group of the 1,2,3-substituted ring can potentially ligate the metal; two equatorial groups ligate the metal in the CuI state leaving a disassociated, axial group. However, all three groups (two axial and one equatorial) ligate the metal in the CuII state. Exciton-coupled circular dichroism (ECCD) and 2D NMR were used to characterize the structures.
- Zhang, Jing,Canary, James W.
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p. 3907 - 3910
(2007/10/03)
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- Regioselective lithium-halogen exchange and palladium-catalyzed cross-coupling reactions of 2,4-dihaloquinolines
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Lithium-halogen exchange of 2,4-dibromoquinolines proceeds regioselectively at C-4 and affords 4-substituted quinolines on quenching with electrophiles. Palladium-catalyzed cross-coupling reactions of 2-bromo-4-iodoquinoline provide 4-substituted 2-bromoq
- Comins, Daniel L.,Nolan, Jason M.,Bori, Ibrahim D.
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p. 6697 - 6699
(2007/10/03)
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