Microwave-enhanced Fischer reaction: An efficient one-pot synthesis of γ-carbolines
γ-Carbolines were obtained in a simple one-pot Fischer reaction starting from N-acetyl-3-bromo-4-piperidone hydrobromide and substituted arylhydrazine hydrochlorides in acidic media under microwave irradiation or by a thermal process. The optimization procedures are reported in detail, and the results from microwave processes are compared with conventional ones. Georg Thieme Verlag Stuttgart.
An electroluminescent compound and an electroluminescent device comprising the same
The present invention relates to an organic light-emitting compound represented by [Chemical formula 1]. An organic electroluminescent device comprising the organic light-emitting compound in the present invention has excellent power efficiency, light-emitting efficiency, and long life cycle because the present invention can be operated by a lower driving-voltage in comparison with a device comprising conventional phosphorescent host materials. [Chemical formula 1].
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Paragraph 0398; 0411-0414; 0784-0788
(2020/09/26)
An organoelectro luminescent compounds and organoelectro luminescent device using the same
The present invention relates to an organic light emitting compound represented by Formula I or Formula III, and an organic electroluminescent device including the same. The organic light-emitting compound according to the present invention has excellent brightness and luminous efficiency, and can be driven at a low voltage and has improved power efficiency. A compound of the formula I: No.No. STRIII No.No. wherein X represents a hydrogen atom or a methyl group. (by machine translation)
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Paragraph 0309-0313; 0391; 0396-0397
(2020/11/03)
An electroluminescen compound and an electroluminescent device comprising the same
The present invention relates to an organic light-emitting compound represented by chemical formula 1. An organic electroluminescent device comprising the organic light-emitting compound in the present invention has excellent power efficiency, light-emitting efficiency, and long life cycle because the present invention can be operated by a lower driving-voltage in comparison with a device comprising conventional phosphorescent host materials.
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Paragraph 0336; 0345-0348; 0784; 0801-0804
(2021/02/02)
Organic light-emitting device
The present invention relates to an organic light emitting device having excellent electrical properties and thermal stability, which comprises: a first electrode; a second electrode; and an organic layer disposed between the first and second electrodes,
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(2019/06/04)
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