- A design strategy of bipolar host materials for more than 30 times extended lifetime in phosphorescent organic light-emitting diodes using benzocarbazole and quinazoline
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Stable host materials based on benzocarbazole and quinazoline were synthesized to establish a design strategy of bipolar hosts for elongated lifetime in orange phosphorescent organic light-emitting diodes (PHOLEDs). Three host materials with benzocarbazole and quinazoline connected directly or through a phenyl linker were compared in terms of the device lifetime of the orange PHOLEDs. The connection between benzocarbazole and quinazoline through a phenyl linker was an effective way of improving the lifetime of the red PHOLEDs by more than twice and the molecular orbital distribution of the hosts was well correlated with the lifetime of the PHOLEDs. In particular, the lifetime of the PHOLEDs was extended by more than 30 times compared to a conventional PHOLED with a common CBP host.
- Kim, Sung Moo,Yun, Ju Hui,Han, Si Hyun,Lee, Jun Yeob
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Read Online
- Visible-light-driven Cadogan reaction
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Visible-light-driven photochemical Cadogan-type cyclization has been discovered. The organic D-A type photosensitizer 4CzIPN found to be an efficient mediator to transfer energy from photons to the transient intermediate that breaks the barriers of deoxygenation in Cadogan reaction and enables a mild metal-free access to carbazoles and related heterocycles. DFT calculation results indicate mildly endergonic formation of the intermediate complex of nitrobiarenes and PPh3, which corresponds with experimental findings regarding reaction temperature. The robust synthetic capacity of the photoredox Cadogan reaction systems has been demonstrated by the viable productivity of a broad range of carbazoles and related N-heterocycles with good tolerance of various functionalities.
- Qu, Zhonghua,Wang, Pu,Chen, Xing,Deng, Guo-Jun,Huang, Huawen
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supporting information
p. 2582 - 2586
(2021/03/09)
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- Synthesis of non-C2symmetrical NOBIN-type biaryls through a cascade N -arylation and [3,3]-sigmatropic rearrangement from O -arylhydroxylamines and diaryliodonium salts
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We developed herein a regioselective construction of non-C2 symmetrical NOBIN-type biaryls through a cascade N-arylation and [3,3]-sigmatropic rearrangement from O-arylhydroxylamines and diaryliodonium salts under mild conditions. The employment of copper salt could inhibit the further O-arylation of the newly formed biaryl products, otherwise, O-arylated NOBIN-type products were furnished in moderate to good isolated yields. The products of this protocol can be further converted into highly valuable functional molecules and heterocycles.
- Gao, Hongyin,Liu, Fengting,Lu, Haifeng,Qu, Jiatong,Wang, Min
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supporting information
p. 7246 - 7251
(2021/08/30)
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- COMPOUND FOR ORGANIC ELECTRONIC ELEMENT, ORGANIC ELECTRONIC ELEMENT USING THE SAME, AND A ELECTRONIC DEVICE THEREOF
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The present invention relates to a novel compound, an organic electric element using the same, and an electronic device thereof. According to the present invention, a luminous efficiency, a color purity and a lifespan of the element can be improved and a driving voltage can be lowered. The organic electric element comprises: an anode; a cathode; and an organic material layer formed between the anode and the cathode.
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Paragraph 0134; 0148-0152
(2020/05/30)
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- COMPOUND FOR ORGANIC ELECTRONIC ELEMENT, ORGANIC ELECTRONIC ELEMENT USING THE SAME, AND AN ELECTRONIC DEVICE THEREOF
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The present invention relates to a device for emitting light. Provided are a novel mixture capable of improving stability and longevity, an organic electronic element using the same, and an electronic device thereof. (by machine translation)
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- COMPOUND FOR ORGANIC ELECTRONIC ELEMENT, ORGANIC ELECTRONIC ELEMENT USING THE SAME, AND AN ELECTRONIC DEVICE THEREOF
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The present invention provides: a novel mixture capable of improving luminous efficiency, stability, and lifespan of an element; an organic electronic element which uses the same; and an electronic device thereof. By using the mixture according to the present invention as a phosphorescent host material, it is possible to achieve high luminous efficiency and low driving voltage of the organic electronic element, and also significantly improve a lifespan of the element.(110) Substrate(120) Anode(130) Hole injection layer(140) Hole transport layer(141) Buffer layer(150) Light emitting auxiliary layer(151) Light emitting layer(160) Electron transport layer(170) Electron injection layer(180) CathodeCOPYRIGHT KIPO 2020
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- An electroluminescent compound and an electroluminescent device comprising the same
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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 0652; 0665-0668
(2020/09/26)
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- ORGANIC COMPOUND AND ORGANIC ELECTROLUMINESCENCE DEVICE USING THE SAME
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The present invention discloses an organic compound represented by the following formula (1) and an organic electroluminescence device using the organic compound as the phosphorescent host material, the fluorescent host material, or the fluorescent dopant material. The organic compound may increase a current efficiency or half-life of the organic electroluminescence device. The same definition as described in the present invention.
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Paragraph 0024; 0026; 0027
(2020/08/12)
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- An electroluminescen compound and an electroluminescent device comprising the same
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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 0634; 0647-0650; 0655-0658
(2021/02/02)
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- COMPOUND FOR ORGANIC ELECTRIC ELEMENT AND ORGANIC ELECTRIC DEVICE COMPRISING THE SAME
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The present invention relates to a compound for an organic electronic element and an organic electronic element using the same. To the present invention, an organic electronic element having high luminous efficiency, low driving voltage, and high heat resistance can be provided and the color purity and lifetime of the organic electronic element can be improved. (by machine translation)
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Paragraph 0363-0365; 0368-0369; 0385-0387; 0390-0391
(2020/11/28)
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- Preparation method of carbazole ring-containing compound
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The invention provides a preparation method of a carbazole ring-containing compound, comprising the following step: a compound shown as a formula I-1 is subjected to a reaction in an organic solvent in the presence of metal and/or metal salt by using triphenylphosphine as a reducing agent to generate a compound shown as the formula I. In the invention, the carbazole ring compound is prepared by taking triphenylphosphine as a reducing agent and utilizing a nitro compound to react under the cooperation of the co-reducing agent, so that the dosage of triphenylphosphine is reduced, the generationamount of dangerous solid wastes is reduced, the post-treatment is easy, and the reaction temperature can be greatly reduced and the reaction time can be greatly shortened while high product yield isensured.
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Paragraph 0079-0082
(2020/05/02)
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- A 10 - bromo - 7H - benzo [c] carbazole preparation method (by machine translation)
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The invention discloses a 10 - bromo - 7 H - benzo [c] carbazole preparation method, comprises the following raw materials: 2 - naphthol: 260 g; hydrazine hydrate (80%): 520 g; water: 500 g; toluene: 750 ml; concentrated hydrochloric acid: 100 ml; 2 - naphthylhydrazine hydrochloride: 164 g; methanol: 968 ml; cyclohexanone: 91 g; cold methanol: 250 ml; 5, 6, 7, 8 - tetrahydro - 3, 4 - benzo-carbazole: 98.3 g; toluene: 700 ml; DDQ: 201.9 g; ethanol: 200 ml; benzo [c] carbazole: 65.1 g; dichloromethane: 600 ml; NBS: 54 g; toluene: 450 ml; activated carbon: 3 g; four reaction bottle: several, specific reaction steps are: (1). 2 - naphthol and 2 times weight of hydrazine hydrate (80%), reflux reaction 20 h, after processing by the dilute hydrochloric acid, to obtain 2 - naphthylhydrazine hydrochloride. The invention pollution is small, low cost, high yield, use of cheap and easily obtained raw materials, through the four-step reaction, to obtain the target compound, the total yield of products is relatively high; simple process operation, little three-waste discharge, is suitable for the large-scale production. (by machine translation)
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- ORGANIC COMPOSITION, ORGANIC OPTOELECTRONIC DEVICE AND DISPLAY DEVICE」
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A composition including a first compound represented by a combination of Chemical Formula 1 and Chemical Formula 2 and a second compound represented by Chemical Formula 3, an organic optoelectronic device, and a display device are disclosed. In Chemical Formula 1 to Chemical Formula 3, each substituent is the same as described in the specification.
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Paragraph 0266; 0268
(2020/02/22)
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- Synthesis of N-Alkyl and N-H-Carbazoles through SNAr-Based Aminations of Dibenzothiophene Dioxides
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Alkyl amines have become available for the synthesis of diverse N-alkyl carbazoles through twofold SNAr aminations of dibenzothiophene dioxides by using alkali metal bases. Of particular importance is the choice of counter cations on alkali metal bases, that is, i) the use of Li base for the efficient intermolecular reaction and ii) the sequential addition of heavier alkali metal bases (Na, K, or Cs) to promote intramolecular cyclization in a one-pot manner. This protocol also enables the cascade synthesis of N-H-carbazoles by using 2-phenylethylamine by removal of the 2-phenethyl group from N-(2-phenethyl) carbazoles in a single operation.
- Kaga, Atsushi,Nogi, Keisuke,Yorimitsu, Hideki
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supporting information
p. 14780 - 14784
(2019/11/13)
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- Metal-free deoxygenation and reductive disilylation of nitroarenes by organosilicon reducing reagents
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A metal-free deoxygenation and reductive disilylation of nitroarenes was achieved using N,N’-bis(trime-thylsilyl)-4,4’-bipyridinylidene (1) under mild and neutral reaction conditions, and a broad functional group tolerance was possible in this reaction. Mono-deoxygenation, giving a synthetically valuable N,O-bis(trimethylsilyl)phe-nylhydroxylamine (7a) as a readily available and safe phenylnitrene source from nitrobenzene, and double-deoxy-genation, giving N,N-bis(trimethylsilyl)anilines 8, were easily controlled by varying the amounts of 1 and reaction temperature as well as adding dibenzothiophene (DBTP). Reaction of 2-arylnitrobenzenes with 1 resulted in the formation of the corresponding carbazoles 14 via in situ-gen-erated phenylnitrene species derived by thermolysis of N,O-bis(trimethylsilyl)phenylhydroxylamines 7, followed by their subsequent intramolecular C H insertion. In addition, the intramolecular N N coupling reaction proceeded in the reduction of 2,2’-dinitrobiphenyl derivatives by 1, giving the corresponding benzo[c]cinnolines.
- Bhattacharjee, Argha,Hosoya, Hiromu,Ikeda, Hideaki,Nishi, Kohei,Tsurugi, Hayato,Mashima, Kazushi
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p. 11278 - 11282
(2018/10/20)
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- Carbazolyl phosphorus ligand as well as preparation method and application thereof
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The invention is suitable for the technical fields of organic compounds and synthesis, and provides a carbazolyl phosphorus ligand as well as a preparation method and application thereof. The carbazolyl phosphorus ligand is one of a compound 1, a compound 2 and a compound 3 with structures shown by a formula 1, a formula 2 and a formula 3 (shown in the description) respectively, wherein R1 is phenyl or alkyl, R2, R3, R4, R5, R6, R7, R8 and R9 independently are one of hydrogen, C5-C10 alkyl, methoxyl, oxymethyl, ethyoxyl, phenyl, fluorine group, and pyridyl; and R2, R3, R4, and R5 cannot be hydrogen at the same time.
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- Visible-Light-Induced Synthesis of Carbazoles by in Situ Formation of Photosensitizing Intermediate
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A visible-light-induced synthesis of N-H carbazoles from easily accessible 2,2′-diaminobiaryls in the absence of any external photosensitizer is reported. The process only requires tBuONO and natural resources, visible light, and molecular oxygen for the synthesis of N-H carbazoles. Experimental and computational studies support that the in situ formation of a visible-light-absorbing photosensitizing intermediate, benzocinnoline N-imide, is responsible for the activation of triplet molecular oxygen to singlet oxygen that, in turn, promotes the synthesis of carbazole.
- Chatterjee, Tanmay,Roh, Geum-Bee,Shoaib, Mahbubul Alam,Suhl, Chang-Heon,Kim, Jun Soo,Cho, Cheon-Gyu,Cho, Eun Jin
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supporting information
p. 1906 - 1909
(2017/04/11)
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- Gas-phase domino cyclization of phosphonium ylides leading to the total synthesis of Eustifoline D
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Six stabilised phosphonium ylides bearing ortho-benzylaminophenyl and cinnamoyl (or a heterocyclic analogue) groups have been prepared and upon flash vacuum pyrolysis at 800 °C were found to undergo cascade cyclization processes to give mainly 3-styrylquinolines but also in some cases ring-fused carbazoles and other fused-ring heterocyclic products. By starting with an appropriate ring-methylated precursor the natural product Eustifoline D was obtained in 19% yield in the pyrolysis in addition to the 3-(2-furylethenyl)quinoline (46%).
- Aitken, R. Alan,Murray, Lorna
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supporting information
p. 4328 - 4332
(2017/10/17)
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- Cascade Amination/Cyclization/Aromatization Process for the Rapid Construction of [2,3-c]Dihydrocarbazoles and [2,3-c]Carbazoles
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An intramolecular cascade amination/cyclization/aromatization reaction of functionalized alkylidenecyclopropanes has been developed in the presence of silver acetate, affording a variety of [2,3-c]dihydrocarbazoles and [2,3-c]carbazoles in moderate to excellent yields. The mechanistic investigations revealed that this cascade reaction proceeds through a radical initiated process. Moreover, further transformations for the synthesis of eustifoline-D and an OLED exhibit a potential synthetic utility of this method.
- Fan, Xing,Yu, Liu-Zhu,Wei, Yin,Shi, Min
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p. 4476 - 4479
(2017/09/11)
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- Br?nsted Acid Catalyzed Functionalization of Aromatic Alcohols through Nucleophilic Substitution of Hydroxyl Group
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The hydroxyl groups of naphthol and tautomerizable phenol derivatives have been substituted by O-, S-, N-, and C-centered nucleophiles under solvent-free reaction conditions. The products are generated in good to excellent yields. para-Toluenesulfonic acid exhibits the best catalytic activity compared to other Bronsted acids. Experimental observations suggest that the reaction proceeds through the intermediacy of the keto tautomer of naphthol. Nucleophilic addition to the carbonyl group followed by elimination of water generates the desired product. The present methodology provides access to substituted naphtho[2,1-b]furan derivatives. The products generated using N-centered nucleophiles can be further transformed to important classes of organic molecules such as benzocarbazole and imidazole derivatives.
- Mishra, Abhishek Kumar,Biswas, Srijit
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p. 2355 - 2363
(2016/04/04)
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- Red phosphorescent compound and the use of the compound of the organic light emitting diode device (by machine translation)
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The present invention provides a phosphorescent compound of one of following formulas:
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Paragraph 0091-0096
(2016/10/20)
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- NEW HOST MATERIAL AND ORGANIC ELECTROLUMINESCENT DEVICE USING THE SAME
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The present invention relates to a novel luminous host material and an organic electroluminescent device using the same. The organic electroluminescent device has excellent luminous characteristics and improves power consumption by enhancing driving voltage and inducing an increase in electrical power efficiency. The novel host material of the present invention is represented by chemical formula 1.COPYRIGHT KIPO 2016
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Paragraph 0232; 0238-0240
(2016/10/09)
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- COMPOUND, MATERIAL FOR ORGANIC ELECTROLUMINESCENT ELEMENTS, ORGANIC ELECTROLUMINESCENT ELEMENT, AND ELECTRONIC DEVICE
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A compound is represented by a formula (1) below, in which k is an integer of 0 or more, m is an integer of 1 or more, n is an integer of 2 or more. L is a substituted or unsubstituted aromatic hydrocarbon ring having 6 to 30 ring carbon atoms, CN is a cyano group, and D1 and D2 are each independently represented by one of a formula (2), a formula (3) and formula (3x) below, D1 and D2 being optionally mutually the same or different.
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Paragraph 0311; 0313
(2016/06/06)
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- A light emitting device for emitting compd. (by machine translation)
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The invention discloses a, R 2 is, optionally substituted phenyl, the substituent Alkoxypyrimidinyl and optionally can be from Pirimidinyl substd., cyano, aryl and/or has heteroaryloxazolidinone; R 3 is, optionally substituted carbosorylethyl, optionally substituted dihydrobenzo carbosorylethyl, optionally [...] substd., optionally [...] substd. phenazinyl and optionally can be substituted with from, heteroaryl, compound represented by eq. 1. In another embodiment, the organic light emitting diode device including a compound of eq. 1. Selected drawing: fig. 1 (by machine translation)
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Paragraph 0104; 0132
(2016/10/20)
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- LIGHT-EMITTING COMPOUNDS FOR LIGHT-EMITTING DEVICES
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Compounds represented by Formula (1) are disclosed herein. Organic light-emitting elements and an organic light-emitting diode devices comprising these compounds are also disclosed.
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Paragraph 0141
(2016/10/31)
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- New organic electroluminescent compounds and the use of the compound of the organic electroluminescent device
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Disclosed are a novel organic electroluminescent compound and an organic electroluminescent device comprising the same. When used as host material of organic electroluminescent material of an OLED device, the disclosed organic electroluminescent compound exhibits high luminous efficiency and excellent life property of the material as compared to conventional host material. Therefore, it can be used to manufacture OLEDs having very good operation life.
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Paragraph 0062; 0065; 0066
(2016/10/07)
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- Novel organic electroluminescent compounds and organic electroluminescent device using the same
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The present invention relates to a novel organic light emitting compound and an organic electroluminescent device including the same. More specifically, the organic light emitting compound according to the present invention may be selected from the following Chemical Formulae 1 to 5. [With respect to aforementioned Chemical Formulae 1 to 5, X and Y may be independently selected from N(Ar1), O, and S, wherein the Ar1 may be different from each other, and be expressed as Ar1 or Ar2 if the Ar1 is plural; Z1 to Z8 may be independently selected from C(Ar3) and N, wherein the Ar3 may be different from each other, and the Ar3 adjacent to each other may be combined and form a circle.] Since the organic light emitting compound according to the present invention may be used as a host material of organic light emitting materials in an OLED element, the organic light emitting compound may show good luminous efficiency and excellent life property of material, and OLED having very good operation life may be manufactured therefrom.
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Paragraph 0045; 0046; 0049; 0050
(2018/02/08)
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- Novel organic electroluminescent compounds and organic electroluminescent device using the same
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The present invention relates to a novel organic electroluminescent compound and an organic electroluminescent device using the same and, more specifically, to an organic luminescent compound selected among chemical formula 1 to chemical formula 5. [In chemical formula 1 to chemical formula 5, X and Y are selected among N(Ar_1), O and S, respectively. Ar_1 is able to differentiate from each other, and when Ar_1 is plural, Ar_1 is indicated as Ar_1 or Ar_2. Z_1 to Z_8 are selected among C(Ar_3) and N, respectively. Ar_3 is able to differentiate from each other, and an adjacent Ar_3 is able to form a circle by mutual combination.] The organic electroluminescent compound according to the present invention exhibits excellent luminance efficiency as compared to an existing host material by being used as a host material of an organic electroluminescent material in an OLED device and has excellent durability of materials, thereby being able to manufacture an OLED in which the driving durability of the device is excellent.
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Paragraph 0045; 0046; 0049; 0050
(2020/03/03)
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- COMPOUND FOR ORGANIC ELECTRIC ELEMENT, ORGANIC ELECTRIC ELEMENT COMPRISING THE SAME AND ELECTRONIC DEVICE THEREOF
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The present invention refers to formula 1 compounds represented by number under public affairs substrate. In addition, electrode number 1, number 2 electrode and said number 1 electrode including said number 2 electrode and electrode under public affairs number organic solvent, said organic compound layer is formed comprises a formula 1 compound. Organic compound represented by formula 1 organic layer of the electrical component are included, a predetermined driving voltage, luminous efficiency, can be fixed to the color purity and their service life. (by machine translation)
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Paragraph 0157; 0172; 0173; 0180; 0181
(2017/04/19)
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- COMPOUND FOR ORGANIC ELECTRIC ELEMENT, ORGANIC ELECTRIC ELEMENT COMPRISING THE SAME AND ELECTRONIC DEVICE THEREOF
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In the present invention, provided is a compound represented by chemical formula 1. In addition, provided is an organic electric element which comprises a first electrode, a second electrode, and an organic matter layer. The organic matter layer is embedded between the first electrode and the second electrode, and includes a compound represented by chemical formula 1. If the organic matter layer of an organic electric element comprises the compound represented by chemical formula 1, driving voltage of the organic electric device can be reduced and luminous efficiency, color purity, and lifetime of the organic electric device can be enhanced.(110) Substrate(120) Positive electrode(130) Hole injection layer(140) Hole transport layer(141) Buffer layer(150) Light emitting layer(151) Light-emitting assisting layer(160) Electron transport layer(170) Electron injection layer(180) Negative electrodeCOPYRIGHT KIPO 2016
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Paragraph 0134; 0136; 0139; 0140
(2016/10/08)
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- Direct synthesis of N -H carbazoles via iridium(III)-catalyzed intramolecular C-H amination
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The iridium-catalyzed dehydrogenative cyclization of 2-aminobiphenyls proceeds smoothly in the presence of a copper cocatalyst under air as a terminal oxidant through intramolecular direct C-H amination to produce N-H carbazoles. A similar iridium/copper system can also catalyze the unprecedented dimerization reaction of 2-aminobiphenyl involving 2-fold C-H/N-H couplings.
- Suzuki, Chiharu,Hirano, Koji,Satoh, Tetsuya,Miura, Masahiro
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p. 1597 - 1600
(2015/03/30)
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- NOVEL ANTHRACENE COMPOUND AND ORGANIC ELECTROLUMINESCENT ELEMENT PREPARED USING THE SAME
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PROBLEM TO BE SOLVED: To provide a novel anthracene compound and an organic electroluminescent element with high efficiency, prepared using the same. SOLUTION: This invention provides an anthracene compound represented by the formula (1) (where Z is a group having a structure represented by formula (2), and at least one set of adjacent two groups among R11-R18 bind to each other to form a ring structure represented by formula (3). COPYRIGHT: (C)2016,JPOandINPIT
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Paragraph 0145; 0147
(2018/10/03)
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- COMPOUND, ORGANIC OPTOELECTRIC DEVICE AND DISPLAY DEVICE
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The present invention relates to a compound represented by chemical formula I, an organic light emitting diode including the same, and a display device including the organic light emitting diode. Accordingly, the present invention can provide the organic light emitting diode having properties such as high efficiency and long lifetime. In chemical formula I, X^1 to X^10, L^1 to L^3, R^5 to R^7, X, Ar^1, p, and q are the same as defined in the specification.COPYRIGHT KIPO 2015
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Paragraph 0387-0389
(2016/10/10)
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- EMISSIVE MATERIAL FOR ORGANIC EMITTING DIODES
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Compounds represented by Formula 1 are described herein. Organic light-emitting elements and an organic light-emitting diode devices including these compounds, as well as methods related to preparing these compounds and devices, are also included in this disclosure.
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Paragraph 0071
(2016/06/01)
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- Novel organic electroluminescent compounds and organic electroluminescent device using the same
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The present invention relates to a novel organic light-emitting compound and an organic electroluminescent device including the same. More particularly, the organic light-emitting compound according to the present invention is selected from the following Formulae 1 to 5. [In the above Formulae 1 to 5, X and Y are independently selected from N(Ar1), O and S, Ar1 may be different from each other, when Ar1 is plural, this is represented by Ar1 or Ar2; each of Z1 to Z8 is independently selected from C(Ar3) and N, Ar3 may be different from each other, and adjacent Ar3 may combine together to form a ring.] The organic light-emitting compound according to the present invention is used as a host material in an organic light-emitting material in an OLED device and has better light-emitting efficiency than a common host material and excellent lifetime characteristic. An OLED having good driving lifetime may be manufactured.
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Paragraph 0045; 0046; 0049; 0050
(2021/05/11)
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- NOVEL ORGANIC ELECTROLUMINESCENT COMPOUNDS AND ORGANIC ELECTROLUMINESCENT DEVICE USING THE SAME
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The present invention relates to a novel organic electroluminescent compound and an organic electroluminescent device adopting the same, and more specifically, to an organic electroluminescent compound represented by chemical formula 1 below. In the chemical formula 1, ring A and ring B are independently a monocyclic or polycyclic aromatic ring, a monocyclic or polycyclic heteroaromatic ring, a five- or six-membered heteroaromatic ring fused with an aromatic ring, or a monocyclic or polycyclic aromatic ring fused with a five- or six-membered heteroaromatic ring, where the ring A and ring B cannot both be a monocyclic aromatic ring. The organic electroluminescent compound according to the present invention shows good luminous efficiency, and superior material color purity and lifetime characteristics, thereby enabling manufacture of an OLED device with excellent driving time.COPYRIGHT KIPO 2016
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Paragraph 0095; 0100; 0101
(2016/10/10)
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- An electroluminescent compound and an electroluminescent device comprising the same
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The present invention relates to an organic light-emitting compound represented by chemical formula 1, and an organic electroluminescent device comprising the same. According to the present invention, the organic electroluminescent device employing an organic light-emitting compound as a host material in light-emitting layer of a device or a hole transport material of a hole injection layer and a hole transport layer, has more improved light-emitting efficiency and a long lifespan property than a host compound or a hole transport material which is conventionally employed and enables low-voltage drive.COPYRIGHT KIPO 2016
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Paragraph 0255-0260
(2016/10/10)
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- CONDENSED CYCLIC COMPOUND, AND ORGANIC LIGHT EMITTING DEVICE INCLUDING THE SAME
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Disclosed are a condensed ring compound and an organic light emitting device comprising the condensed ring compound. The organic light emitting device comprises: a first electrode; a second electrode facing the first electrode; and an organic layer interposed between the first electrode and the second electrode, wherein the organic layer comprises the condensed ring compound.COPYRIGHT KIPO 2015
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Paragraph 1177
(2016/10/08)
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- COMPOUND FOR ORGANIC ELECTRONIC ELEMENT, ORGANIC ELECTRONIC ELEMENT USING THE SAME, AND AN ELECTRONIC DEVICE THEREOF
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The present invention provides a novel compound capable of improving light-emitting efficiency, stability, and lifespan of an element, an organic electronic element using same and an electronic device thereof.(110) Substrate(120) Positive electrode(130) Hole injection layer(140) Hole transfer layer(141) Buffer layer(150) Light emitting layer(151) Light-emitting assisting layer(160) Electron transfer layer(170) Electron injection layer(180) Negative electrodeCOPYRIGHT KIPO 2016
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Paragraph 0126; 0154; 0155; 0158; 0159
(2016/10/08)
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- COMPOUND FOR ORGANIC ELECTRONIC ELEMENT, ORGANIC ELECTRONIC ELEMENT USING THE SAME, AND AN ELECTRONIC DEVICE THEREOF
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Provided in the present invention are a novel compound which can improve light emitting efficiency, stability, and life, an organic electronic element using the same, and an electronic device thereof. The organic electronic element is characterized by comprising a first electrode; a second electrode; and an organic substance layer located between the first electrode and the second electrode, wherein the compound is contained in the organic substance layer. The organic electronic element is characterized by having the compound contained in at least one layer among a hole injection layer, a hole transfer layer, an light emitting auxiliary layer, or a light emitting layer of an organic substance layer.(140) Hole transfer layer(141) Buffer layer(150) Light emitting layer(151) Auxiliary light emitting layer(160) Electron transfer layer(170) Electron injection layer(180) Negative electrode(130) Hole injection layer(120) Positive electrode(110) SubstrateCOPYRIGHT KIPO 2015
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Paragraph 0175; 0184
(2016/10/08)
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- COMPOUND FOR ORGANIC ELECTRONIC ELEMENT, ORGANIC ELECTRONIC ELEMENT USING THE SAME, AND AN ELECTRONIC DEVICE THEREOF
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The present invention provides a novel compound capable of improving light-emitting efficiency, stability, and lifespan of an element, an organic electronic element using same and an electronic device thereof.(110) Substrate(120) Positive electrode(130) Hole injection layer(140) Hole transfer layer(141) Buffer layer(150) Light emitting layer(151) Light-emitting assisting layer(160) Electron transfer layer(170) Electron injection layer(180) Negative electrodeCOPYRIGHT KIPO 2016
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Paragraph 0143; 144; 0147; 0148
(2016/10/07)
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- One-pot synthesis of carbazoles via tandem C-C cross-coupling and reductive amination
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We have developed a highly efficient synthetic route to carbazoles that employs sequential C-C/C-N bond formation via Suzuki cross-coupling and Cadogan cyclization using commercially available or easily preparable starting materials. The developed method is compatible with electron neutral, rich or deficient substrates. The synthetic utility of this method was demonstrated by the concise syntheses of four natural products (glycozoline, glycozolicine, glycozolidine and clausenalene).
- Goo, Deuk-Young,Woo, Sang Kook
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supporting information
p. 122 - 130
(2015/12/30)
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- "transition-metal-free" synthesis of carbazoles by photostimulated reactions of 2′-halo[1,1′-biphenyl]-2-amines
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An efficient and simple protocol for the preparation of a series of 9H-carbazoles by photostimulated SRN1 substitution reactions is presented. Substituted 9H-carbazoles were synthesized in low to excellent yields (up to 96%) through an intramolecular C-N bond formation of 2′-halo[1,1′-biphenyl]-2-amines by the photoinitiated SRN1 mechanism under mild and "transition-metal-free" conditions. The biphenylamines used as substrates were obtained with isolated yields ranging from 21% to 84% by two approaches: (A) the cross-coupling Suzuki-Miyaura reaction and (B) the radical arylation of anilines. Some key aspects of the proposed mechanism were evaluated at the B3LYP/6-311+G? level.
- Guerra, Walter D.,Rossi, Roberto A.,Pierini, Adriana B.,Barolo, Silvia M.
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p. 928 - 941
(2015/01/30)
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- Amino-directed RhIII-catalyzed C-H activation leading to one-pot synthesis of N-H carbazoles
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One-pot synthesis: An efficient amino-directed one-pot synthesis of N-H carbazoles from unprotected 2-aminobiaryl compounds is reported. The free amino unit acts as both a directing group for ortho C-H activation and a functional group for construction of an N-heterocyclic ring (see scheme). Copyright
- Jiang, Qibai,Duan-Mu, Dandan,Zhong, Wei,Chen, Hao,Yan, Hong
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supporting information
p. 1903 - 1907
(2013/03/28)
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- BENZOCARBAZOLE COMPOUNDS AND ELECTROLUMINESCENT DEVICES INVOLVING THEM
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The present invention relates to novel organic electroluminescence compounds and an organic electroluminescence device containing the same. The compounds according to the present invention have high luminous efficiency and long operation lifetime. Therefore, they can produce an organic electroluminescence device having enhanced power consumption efficiency.
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Paragraph 145; 146
(2013/03/28)
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- NOVEL ORGANIC ELECTROLUMINESCENT COMPOUNDS AND AN ORGANIC ELECTROLUMINESCENT DEVICE USING THE SAME
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The present invention relates to a novel organic electroluminescent compound and an organic electroluminescent device containing the same. The organic electroluminescent compound according to the present invention has an advantage of manufacturing an OLED device having long operating lifespan due to its excellent lifespan characteristics, lower driving voltages, high luminous efficiency, and reduced power consumption induced by improved power efficiency.
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Paragraph 164; 165
(2013/06/05)
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- OXIME ESTER
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Compounds of the formula (I), wherein R1, R2, R3, R4, R5, R6, R7 and R8 for example independently of each other are hydro-gen, C1-C20alkyl, (II), COR16 or NO2, provided that at least one pair of R1 and R2, R2 and R3, R3 and R4, R5 and R6, R6 and R7, or R7 and R8 is (III); R9, R10, R11 and R12 for example independently of each other are hydrogen, C1-C20alkyl which optionally substituted; or R9, R10, R11, and R12 independently of each other are unsubstituted or substituted phenyl; X is CO or a direct bond; R13 is for example C1-C20alkyl which optionally is substituted, C2-C12alkenyl, C4-C8cycloalkenyl, C2-C12alkinyl, C3-C10-cycloalkyl, phenyl or naphthyl both of which are optionally substituted; R14 is for example hydrogen, C3-C8cycloalkyl, C2-C5alkenyl, C1-C20alkoxy, C1-C20alkyl, phenyl or naphthyl; R15 is for example C6-C20aryl or C5-C20heteroaryl; R16 is for example C6-C20aryl which is unsubstituted or substituted by one or more C1-C20alkoxy or C1-C20alkyl; are in particular suitable as photoinitiators for color filter applications.
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Page/Page column
(2013/07/31)
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- OXIME ESTER DERIVATIVES OF BENZOCARBAZOLE COMPOUNDS AND THEIR USE AS PHOTOINITIATORS IN PHOTOPOLYMERIZABLE COMPOSITIONS
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Compounds of the formula (I), wherein R1, R2, R3, R4, R5, R6, R7 and R8 for example independently of each other are hydro- gen, C1-C20alkyl, (II), COR16 or NO2, provided that at least one pair of R1 and R2, R2 and R3, R3 and R4, R5 and R6, R6 and R7, or R7 and R8 is (III); R9, R10, R11 and R12 for example independently of each other are hydrogen, C1-C20alkyl which optionally substituted; or R9, R10, R11, and R12 independently of each other are unsubstituted or substituted phenyl; X is CO or a direct bond; R13 is for example C1-C20alkyl which optionally is substituted, C2-C12alkenyl, C4- C8cycloalkenyl, C2-C12alkinyl, C3-C10cycloalkyl, phenyl or naphthyl both of which are optionally substituted; R14 is for example hydrogen, C3-C8cycloalkyl, C2-C5alkenyl, C1-C20alkoxy, C1-C20alkyl, phenyl or naphthyl; R15 is for example C6-C20aryl or C5-C20heteroaryl; R16 is for example C6-C20aryl which is unsubstituted or substituted by one or more C1-C20alkoxy or C1-C20alkyl; are in particular suitable as photoinitiators for color filter applications.
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Page/Page column 101-102
(2012/04/23)
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- NOVEL COMPOUNDS FOR ORGANIC ELECTRONIC MATERIAL AND ORGANIC ELECTROLUMINESCENT DEVICE USING THE SAME
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Provided are novel compounds for organic electronic material and an organic electroluminescent device using the same. Because the compounds for organic electronic material according to the present invention are highly efficient at transporting electrons, crystallization is prevented when manufacturing a device and current properties of the device are improved due to favorably formed layers. Accordingly, OLED devices having improved power efficiency as well as reduced operating voltage can be manufactured.
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Page/Page column 15
(2012/03/26)
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- NOVEL COMPOUND FOR ORGANIC ELECTRONIC MATERIAL AND ORGANIC ELECTROLUMINESCENT DEVICE USING THE SAME
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Provided are a novel compound for an organic electronic material and an organic electroluminescent device using the same. The compound for an organic electronic material according to the present invention has high electron transport efficiency, thereby preventing crystallization at the time manufacturing of a device, and allows a layer to be easily formed, thereby improving current characteristics of the device, and thus an OLED device having a lowered driving voltage and improved power efficiency as well as superior luminous efficiency and lifespan characteristics as compared with the existing material can be manufactured.
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Page/Page column 36
(2012/06/01)
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