78440-75-2Relevant academic research and scientific papers
Arylamine compound and organic electroluminescent device thereof
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Paragraph 0148-0150; 0151-0153, (2021/09/26)
The invention relates to the technical field of organic photoelectric materials, in particular to an arylamine compound and an organic electroluminescent device thereof. The arylamine compounds represented by the formula (I) provided by the invention have
Arylamine derivative and organic electroluminescent device thereof
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Paragraph 0118-0121; 0217-0219, (2021/12/07)
The invention provides an arylamine derivative and an organic electroluminescent device thereof, and relates to the technical field of organic electroluminescent materials. The arylamine N of the arylamine derivative contains an aromatic ring and alicyclic functional group, and the arylamine derivative can be used as a hole transport material or a covering layer material in an organic electroluminescent device. The arylamine derivative has better stability and deeper HOMO energy level, so that the arylamine derivative is not easily influenced by light and heat and the like, can smoothly migrate holes into a luminescent layer, improves the transmission balance of current carriers, and can be used as a hole transmission material to be applied to an organic electroluminescent device to effectively improve and prolong the efficiency and the service life of the organic electroluminescent device . Besides, when the material is used as a covering layer material in the organic electroluminescent device, light sunk in the device can be effectively coupled out, so that the organic electroluminescent device has relatively long service life and relatively high luminous efficiency.
Diamine derivative and organic electroluminescent device thereof
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Paragraph 0121-0122; 0128-0129; 0188-0190, (2021/12/07)
The invention provides a diamine derivative and an organic electroluminescent device thereof, and relates to the technical field of organic electroluminescent materials. The diamine derivative represented by Formula 1 contains 9 -fluorene-substituted carbazole functional group, and the hole transport region or cover layer of the organic electroluminescent device of the present invention contains the carbazole derivative of Formula 1. The diamine derivative represented by the formula 1 has better hole transport performance and stability, and the prepared organic electroluminescent device containing the diamine derivative of the formula 1 in the prepared hole transport region exhibits high luminous efficiency. A longer service life and is a lower driving voltage. In addition, the diamine derivative of the formula 1 is also a better cover layer material; the prepared cover layer contains the diamine derivative of the formula 1; the organic electroluminescent device has high luminous efficiency and long service life.
Ruthenium-catalyzed aromatization of enediynes via highly regioselective nucleophilic additions on a π-alkyne functionality. A useful method for the synthesis of functionalized benzene derivatives
Odedra, Arjan,Wu, Chang-Jung,Pratap, Taduri Bhanu,Huang, Chun-Wei,Ran, Ying-Fen,Liu, Rai-Shung
, p. 3406 - 3412 (2007/10/03)
TpRu(PPh3)(CH3CN)2PF6 (10 mol %) catalyst effected the nucleophilic addition of water, alcohols, aniline, acetylacetone, pyrroles, and dimethyl malonate to unfunctionalized enediynes under suitable conditions (100 °C, 12-24 h) and gave functionalized benzene products in good yields. In this novel cyclization, nucleophiles very regioselectively attack the internal C1′ alkyne carbon of enediynes to give benzene derivatives as a single regioisomer. Experiments with methoxy substituents exclude the possible involvement of naphthyl cations as reaction intermediates in the cyclization of (o-ethynylphenyl) alkynes. Deuterium-labeling experiments indicate that the catalytically active species is ruthenium-π-alkyne rather than ruthenium-vinylidene species. This hypothesis is further confirmed by the aromatization of o-(2′-iodoethynyl)phenyl alkynes with alcohols. We propose a nucleophilic addition/insertion mechanism for this nucleophilic aromatization on the basis of a series of experiments.
A Photochemical Synthesis of 11H-Benzocarbazole
Olsen, Robert J.,Cummings, William O.
, p. 439 - 440 (2007/10/02)
11H-Benzocarbazole was prepared from 5-acetamido-1,2,3,4-tetrahydronaphthalene in four steps.A Goldberg arylation followed by hydrolysis afforded N-phenyl-1,2,3,4-tetrahydro-5-naphthylamine (3).Photolysis of 3 produced 1,2,3,4-tetrahydro-11H-benzocarbazole (4) which was converted to 11H-benzocarbazole by dehydrogenation with chloranil.
