236389-20-1Relevant articles and documents
Method for synthesizing 9,9'-spirobifluorene derivative
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Paragraph 0037; 0038, (2019/01/05)
The invention relates to a method for synthesizing a 9,9'-spirobifluorene derivative, and belongs to the field of organic chemical synthesis. The method comprises the following steps: activating a C-Fbond in tetrahydrofuran under inert gas protection through reduction and lithiation reaction of raw materials of 2-fluorobiphenyl and a metal lithium sheet, thus establishing 2-biphenyl lithium; thenenabling the 2-biphenyl lithium to react with a fluorenone derivative, hydrolyzing, drying a solvent by distillation, and carrying out ring closing on solid in acetic acid, thus synthesizing the 9,9'-spirobifluorene derivative. According to the method disclosed by the invention, the 2-fluorobiphenyl in low cost is adopted as a raw material to replace 2-bromobiphenyl commonly adopted by a traditional method, the production cost is low, and reaction conditions are gentle; an applicable substrate range of the method is wide, and a new thought is provided for synthesis of the 9,9'-spirobifluorenederivative.
LIGHT-EMITTING ELEMENT, LIGHT-EMITTING DEVICE, AND ELECTRONIC DEVICE
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Paragraph 0266-0271, (2016/12/01)
The present invention refers to and light emitting element using phosphorescent compounds to suitable provides device structure wherein the. Furthermore, the present invention refers to said by the use of having a high emission efficiency light-emitting device with high. In particular, the present invention refers to emits a long-life light-emitting device with high. Hole transport-magnetic host material and phosphorescent compound including number 1 luminescence layer and an electron-transporting host material and phosphorescent compound emitting layer including number 2, number 1 number 2 a luminescent layer number 1 light emitting layer and in contact with one another between electrode number 2 electrode and a light emitting element is is produced.
Organic compounds for an organic electroluminescent device and an organic electroluminescent device comprising the same
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Paragraph 0159-0164, (2016/10/17)
Provided are novel organic compounds for an organic electroluminescent device and an organic electroluminescent device comprising the same wherein the compounds are selected from a group of chemical formula 1.COPYRIGHT KIPO 2015
Novel spyrobifluorene type organic compounds and an organic electroluminescent device comprising the same
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Paragraph 0073; 0074; 0075; 0076, (2016/10/31)
The present invention provides a novel compound represented by the following Chemical Formula 1 and an organic electroluminescent device comprising the same.COPYRIGHT KIPO 2015
Spirobifluorene/sulfone hybrid: Highly efficient solution-processable material for UV-violet electrofluorescence, blue and green phosphorescent OLEDs
Ban, Xinxin,Xu, Huange,Yuan, Guolong,Jiang, Wei,Huang, Bin,Sun, Yueming
, p. 1678 - 1686 (2014/06/23)
A high efficient UV-violet emission type material bis[4-(9,9′- spirobifluorene-2-yl)phenyl] sulfone (SF-DPSO) has been synthesized by incorporating electron deficient sulfone and morphologically stable spirobifluorene into one molecule. The steric and bulky compound SF-DPSO exhibits an excellent solid state photoluminescence quantum yield (ΦPL = 92%), high glass transition temperature (Tg = 211 °C) and high triplet energy (ET = 2.85 eV). In addition, the uniform amorphous thin film could be formed by spin-coating from its solution. These promising physical properties of the material made it suitable for using as UV-violet emitter in non-doped device and appropriate host in phosphorescent OLEDs. With SF-DPSO as an emitter, the non-doped solution processed device achieved an efficient UV-violet emission with the EL peak around 400 nm. By using SF-DPSO as a host, solution processed blue and green phosphorescent organic light emitting diodes showed a high luminous efficiency of 13.7 and 30.2 cd A-1, respectively.
NOVEL COMPOUND AND ORGANIC ELECTRONIC DEVICE USING SAME
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Page/Page column 44, (2011/08/03)
The present invention relates to a novel compound and an organic light emitting device using the compound, and the compound according to the present invention may largely improve a life span, efficiency, electrochemical stability and thermal stability of the organic light emitting device.
CARBAZOLE DERIVATIVE, AND LIGHT-EMITTING ELEMENT, LIGHT-EMITTING DEVICE, AND ELECTRONIC DEVICE USING CARBAZOLE DERIVATIVE
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Page/Page column 161-162, (2009/07/17)
To provide a light-emitting element having high luminous efficiency and to provide a light-emitting device and an electronic device which consumes low power and is driven at low voltage, a carbazole derivative represented by the general formula (1) is provided. In the formula, α1, α2, α3, and α4 each represent an arylene group having less than or equal to 13 carbon atoms; Ar1 and Ar2 each represent an aryl group having less than or equal to 13 carbon atoms; R1 represents any of a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, a substituted or unsubstituted phenyl group, and a substituted or unsubstituted biphenyl group; and R2represents any of an alkyl group having 1 to 6 carbon atoms, a substituted or unsubstituted phenyl group, and a substituted or unsubstituted biphenyl group. In addition, l, m, and n are each independenly 0 or 1.
Quinoxaline Derivative, And Light-Emitting Element And Light-Emitting Device Using Quinoxaline Derivative
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Page/Page column 36, (2008/06/13)
An object is to provide a novel organic compound capable of visible light emission. In particular, an object is to provide a novel organic compound that exhibits a broad emission spectrum when it is used for a light-emitting element. In addition, an object is to provide a light-emitting element and a light-emitting device that gives white light emission with an excellent color rendering property. The quinoxaline derivative represented by General Formula (1) is provided. Since the quinoxaline derivative represented by General Formula (1) is capable of emitting visible light, it can be favorably used for a light-emitting element. In particular, since the quinoxaline derivative represented by General Formula (1) exhibits a broad emission spectrum when it is used for a light-emitting element, by using it for a light-emitting element, a light-emitting element that gives white light emission with an excellent color rendering property can be obtained.
SPIROFLUORENE DERIVATIVE, MATERIAL FOR LIGHT-EMITTING ELEMENT, LIGHT-EMITTING ELEMENT, LIGHT-EMITTING DEVICE, AND ELECTRONIC DEVICE
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Page/Page column 80-81, (2008/06/13)
It is an object of the present invention to provide a material having a high Tg and a wide energy gap. The present invention provides a spirofluorene derivative represented by General Formula 1. (In the formula, R1 is any one of hydrogen, an alkyl group having 1 to 4 carbon atoms, or a group represented by General Formula 2. Each of R2 and R3 is either hydrogen or an alkyl group having 1 to 4 carbon atoms and may be identical or different. R4 is an aryl group having 6 to 15 carbon atoms. Each of R5 and R6 is any one of hydrogen, an alkyl group having 1 to 4 carbon atoms, or an aryl group having 6 to 15 carbon atoms and may be identical or different.)
ETHYNYL CONTAINING ELECTRON TRANSPORT AGENTS AND THEIR USE IN ORGANIC LUMINESCENT DEVICES
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Page 87; 88, (2010/02/09)
Compounds of formula (I), compositions, organic electronic devices, and methods for preparing organic electronic devices are described. The compounds of the invention contain at least two carbon-carbon triple bonds and a heteroaromatic ring E having at least one -C=N unit. The compounds can be used as electron transport agents in organic electronic devices such as organic electroluminescent devices.