- ORGANIC COMPOUNDS AND ORGANIC ELECTRO LUMINESCENCE DEVICE COMPRISING THE SAME
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The present invention relates to a novel compound and an organic electroluminescent device comprising the same. A compound according to the present invention is used for an organic layer, preferably a light emitting layer of the organic electroluminescent
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- Triazolopyridine based organic electroluminescent material and organic electroluminescent device
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The invention relates to the technical field of application of photoelectric materials and discloses a triazolopyridine based organic electroluminescent material and an organic electroluminescent device. According to the organic electroluminescent material, through finely regulating and controlling a triazolopyridine group by a specific functional group, a luminescent main body material with excellent comprehensive performance and an electron transmission material are provided, the problem of energy feedback between a bipolar main body material as the luminescent main body material and a dopant and the problem of efficiency roll-off caused due to relatively long lifetime of excited-state luminescent main body materials such as aromatic triazine in the prior art are effectively solved, theproblem that property difference of devices is very large due to the fact that electron transmission and hole blocking capabilities in the devices are not uniform is solved, and the industrialized development process of the photoelectric materials is accelerated.
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- In order to N - pyridine -2 - (1 H) - [...] for the mother nucleus of the fluorescent molecule and its preparation and use (by machine translation)
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The invention of formula (I) as shown in the compound or its crystalline form, a pharmaceutically acceptable salt. Description of the experimental results, the present invention successfully obtain the to N - pyridine - 2 - (1 H) - [...] nucleus for the f
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Paragraph 0032; 0038; 0039
(2018/11/22)
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- Cyanoamino Compounds in Synthesis Syntheses of Some Heterocycles
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Transformations of some heterocyclic cyanoamino compounds leading to various heterocyclic systems are described. s-Triazolo(1,5-a)azines are obtained either in a direct synthetic approach or via the substituted aminotetrazoles, substituted 3-amino-5-oxo-1,2,4-oxadiazolines, and from N-ethoxycarbonyl N'-heteroaryl thioureas or N-heteroaryl N'-hydroxyguanidine.The cyanoamino group reacts also with o-difunctional benzenes to give the corresponding substituted derivatives of benzimidazole, benzoxazole or benzothiazole. - Keywords: Cyclization with N-N bond formation; Heterocyclic compounds; Rearrangements
- Vercek, Bojan,Ogorevc, Bozidar,,Stanovnik, Branko,Tisler, Miha
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p. 789 - 798
(2007/10/02)
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