- Aromatic compound and organoelectroluminescent device comprising the compound
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The present invention relates to an aromatic compound and an organic electroluminescent device including the same. The aromatic compound is represented by chemical formula 1, and the organic electroluminescent device is excellent in driving voltage, luminous efficiency and lifetime characteristics.
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Paragraph 0811-0817
(2021/08/31)
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- Biomimetic Asymmetric Reduction of Quinazolinones with Chiral and Regenerable NAD(P)H Models
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A facile approach to chiral dihydroquinazolinone derivatives has been described via biomimetic asymmetric reduction of quinazolinones with chiral and regenerable NAD(P)H models. The utility of this method was demonstrated by a concise synthesis of the bromodomain protein divalent inhibitor.
- Zhao, Zi-Biao,Li, Xiang,Wu, Bo,Zhou, Yong-Gui
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supporting information
p. 714 - 718
(2020/05/04)
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- Novel organic compounds for organic light-emitting diode and organic light-emitting diode including the same
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The present invention relates to an organic light emitting compound represented by formula A and an organic light emitting diode including the same. Substituents A1 to A4, R1 to R17, X, Y, a, b, m, n, p, L1, and L2 are identical to as defined in the detailed description.
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Paragraph 0354-0359
(2020/08/29)
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- Novel organic compounds for organic light-emitting diode and organic light-emitting diode including the same
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The present invention relates to an organic electroluminescent compound represented by chemical formula A, and an organic light emitting device comprising the same. Substituents A_1 to A_4, R_1 to R_15, X_1, X_2, Y, n, q, and L are the same as defined in the detailed description of the invention.
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Paragraph 0361-0366
(2020/09/01)
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- Carbazole derivatives and organoelectro luminescent device using the same
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PURPOSE: A carbazole derivative is provided to drive an organic electroluminescent device at low voltage and to improve brightness when the derivative is used in an organic layer of the organic electroluminescent device, thereby improving economic efficiency. CONSTITUTION: A carbazole derivative is denoted by chemical formula 1. An organic electroluminescent device comprises a first electrode, a second electrode, and one or more organic layers between the first and second electrodes. The organic layers contain the carbazole derivative of chemical formula 1. The organic layers are selected among a hole injection layer, a hole transport layer, a functional layer with hole injecting and transporting functions, a light emitting layer, an electrode transport layer, and an electron injection layer. The light emitting layer contains one or more host compounds and one or more dopant compounds. The host compound is a carbazole derivative of chemical formula 1.
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Paragraph 0573-0579
(2020/11/28)
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- An organoelectro luminescent compounds and organoelectro luminescent device using the same
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The present invention relates to an organic electroluminescent compound represented by chemical formula A) to [Chemical Formula C], and an organic electroluminescent device comprising the same. The organic light-emitting compound according to the present invention has low driving voltage and excellent luminous efficiency and lifetime characteristics. [Chemical Formula A] [formula C] [Chemical Formula C] (by machine translation)
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Paragraph 0413-0417
(2020/12/01)
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- Heterocyclic com pounds and organic light-emitting diode including the same
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PURPOSE: A heterocyclic compound and an organic electroluminescent device containing the same are provided to have superior luminescent characteristics such as stability, light emitting efficiency, and lifetime with low driving voltage. CONSTITUTION: A heterocyclic compound is denoted by chemical formula 1. An organic electroluminescent device comprises a first electrode, a second electrode, and one or more organic layers between the first and second electrodes. The organic layers contain one or more heterocyclic compounds. The organic layers are selected among a hole injection layer, a hole transport layer, a functional layer with hole injecting and transporting functions, a light emitting layer, an electron transport layer, and an electron injection layer. The light emitting layer contains one or more host compounds and dopant compounds.
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Paragraph 0617-0623
(2020/12/01)
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- Heterocyclic com pounds and organic light-emitting diode including the same
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The present invention relates to a novel heterocyclic compound and an organic electroluminescent device comprising the same. The heterocyclic compound is represented by the following Chemical Formula 1, and the organic electroluminescent device including the heterocyclic compound has excellent driving voltage, luminous efficiency, and lifespan properties. Chemical Formula 1. (by machine translation)
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Paragraph 0744-0750
(2021/01/19)
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- Heterocyclic com pounds and organic light-emitting diode including the same
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The present invention relates to a novel heterocyclic compound and an organic electroluminescent device comprising the same. The heterocyclic compound is represented by the following Chemical Formula 1, and the organic electroluminescent device including the heterocyclic compound has excellent driving voltage, luminous efficiency, and lifespan properties. Chemical Formula 1. (by machine translation)
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Paragraph 0728-0734
(2021/01/29)
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- Novel organic compounds for organic light-emitting diode and organic light-emitting diode including the same
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The present invention relates to an organic electroluminescent compound represented by chemical formula A and an organic light emitting device comprising the same. Substituents A_1 to A_4, R_1 to R_18, L_1, L_2, X, Y, m, n, s, p, and q are the same as defined in the detailed description of the invention.
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Paragraph 0361-0365
(2021/02/19)
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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 including the same, and the organic light emitting compound according to the present invention has excellent luminous efficiency and material lifetime properties, and thus, the organic electroluminescent device having excellent luminous efficiency while having power efficiency and long durability can be manufactured. Chemical formula 1.
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Paragraph 0451; 0470-0475
(2021/01/30)
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- Methods for preparing 4―phenylquinazolin―2(1H)―one using ionic liquid
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The present invention relates to a method for manufacturing high purity 4-phenylquinazolin-2(1H)-one using an ionic liquid. The method of the present invention can synthesize 4-phenylquinazolin-2(1H)-one at a low temperature of 100 anddeg;C or less and ha
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Paragraph 0092; 0093; 0095; 0096; 0098; 0099; 0104; 0105
(2019/09/14)
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- Novel organic compounds derivatives and organic light-emitting diode therewith
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The purpose of the present invention is to provide a novel organic compound in a specific structure having high efficiency, low driving voltage and long lifespan properties by being used in an electron transport layer of an organic light emitting diode. T
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Paragraph 0459-0462
(2018/05/03)
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- Novel organic compounds and organic light-emitting diode therewith
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The present invention relates to an organic compound represented by the chemical formula A or B, and to an organic light-emitting diode comprising the same, and in the chemical formula A and the chemical formula B, R1 to R12, L1, L2, Ar1 to Ar3, n and m are as described in the description of the invention. Accordingly, a first technical object of the present invention is to provide a specific structure of organic compound having high efficiency, low voltage and long life characteristics by using the compound in an emitting layer, an electron transporting layer or a hole transporting layer in the organic light emitting diode.COPYRIGHT KIPO 2018
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Paragraph 0444-0448
(2018/05/03)
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- Novel heterocyclic compounds and organic light-emitting diode including the same
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The present invention relates to a heterocyclic compound represented by chemical formula A, and an organic light-emitting device containing the same. The ring A, R11-R14, W, X, Y, and Z are the same as defined in the present specification. According to the present invention, the heterocyclic compound exhibits long lifespan and low voltage driving properties when used as a material for phosphorescent hosts.COPYRIGHT KIPO 2017
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Paragraph 0373-0378
(2017/08/29)
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- An organoelectro luminescent compounds and organoelectro luminescent device using 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. The organic electroluminescent device applying the organic light emitting compound according to the present invention has high brightness and long lifespan compared with an existing material.COPYRIGHT KIPO 2016
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Paragraph 0379; 0380-0383
(2016/10/09)
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- An organoelectro luminescent compounds and organoelectro luminescent device using the same
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The present invention relates to an organic light emitting compound represented by chemical formula 1, and to an organic electroluminescent light emitting device comprising the same. The organic electroluminescent device applying the organic light emitting compound has excellent light emitting efficiency compared with a device applying an existing phosphorescent host compound, and has a low driving voltage and excellent long lifespan.COPYRIGHT KIPO 2016
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Paragraph 0273-0277
(2016/10/09)
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- An organoelectro luminescent compounds and organoelectro luminescent device using the same
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The present invention relates to an organic light emitting compound represented by chemical formula 1 or chemical formula 1-1, and to an organic electroluminescent device comprising the same. The organic electroluminescent device applying the organic ligh
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Paragraph 0276-0279
(2016/10/10)
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- An organoelectro luminescent compounds and organoelectro luminescent device using the same
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The present invention relates to organic light emitting compounds represented by chemical formula 1-1 to chemical 1-4, and to an organic electroluminescent device comprising the same. an organic electroluminescent device applying the organic light emittin
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Paragraph 0253-0256
(2016/10/10)
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- An organoelectro luminescent compounds and organoelectro luminescent device using the same
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The present invention relates to an organic light emitting compound represented by chemical formula 1, and to an organic electroluminescent device comprising the same. The organic electroluminescent device applying the organic light emitting compound according to the present invention is driven with a low voltage, improved light emitting efficiency, and high durability compared with a device applying an existing material.
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Paragraph 0256-0259
(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 organic light emitting compounds represented by chemical formula 1-1 to chemical formula 1-2. An organic electroluminescent device using the same has excellent light emitting efficiency and can be driven at low voltage, thereby having improved power efficiency and long life characteristics.COPYRIGHT KIPO 2015
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Paragraph 0415; 0440-0445
(2020/09/12)
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- An electroluminescent compound and an electroluminescent device comprising the same
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The present invention relates to organic light emitting compounds represented by chemical formula 1-1 to chemical formula 1-2. An organic electroluminescent device using the same has excellent light emitting efficiency and can be driven at low voltage, thereby having improved power efficiency and long life characteristics.COPYRIGHT KIPO 2015
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Paragraph 0310; 0317-0322
(2020/12/25)
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- Mechanistic study of a complementary reaction system that easily affords quinazoline and perimidine derivatives
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A new reaction between 2-aminobenzophenone and thiourea in dimethyl sulfoxide (DMSO) has been developed that primarily affords 4-phenylquinazoline as a single product. This reaction is also applicable, in general, to the reactions between thiourea and conformation-restricted β-amino ketones, such as 1-aminoanthracene-9,10-dione and 1-amino-9H-fluoren-9-one, to prepare perimidine derivatives. Experimental data is consistent with our computational study on the thermal decomposition of thiourea to form hydrogen sulfide and carbodiimide. This reaction involves a coupling between 2-aminobenzophenone and carbodiimide generated in situ from thiourea to form 4-phenylquinazolin-2(1H)-imine intermediate, and the generation of sulfur-containing reducing agent from hydrogen sulfide and DMSO, which reduces 4-phenylquinazolin-2(1H)-imine to 4-phenyl-1,2-dihydroquinazolin-2-amine. Elimination of ammonia from the latter yields 4-phenylquinazoline.
- Wang, Zerong Daniel,Eilander, Joshua,Yoshida, Motoko,Wang, Tianzhi
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supporting information
p. 7664 - 7674
(2015/04/22)
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- Naphthalene-catalysed lithiation of functionalized chloroarenes: Regioselective preparation and reactivity of functionalized lithioarenes
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The lithiation of different functionalized chloroarenes (dichlorobenzenes 1 and 3, mono and dichlorophenols 9 and 14, and chloropivalanilides 18) in the presence of a catalytic amount of naphthalene leads to the corresponding functionalized lithioarenes, which react with electrophiles to give the expected polyfunctionalized aromatic molecules 2, 4, 10, 19, 21, 22 and 24 in a regioselective manner. In the case of starting from chlorinated phenols or anilides a deprotonation of the functional group is carried out prior to the lithiation process; only for 2-chloropivalanilide 18o a coupling reaction leading to 2-n-butylpivalanilide is observed when an excess of n-butyllithium is used in the deprotonation step.
- Guijarro, Albert,Ramon, Diego J.,Yus, Miguel
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p. 469 - 482
(2007/10/02)
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- SYNTHESIS OF QUINAZOLINES
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Grignard reagents reacted with 2-aminobenzonitrile to give the intermediate (10), which readily could be cyclized to quinazolines by reaction with carbonyl compounds (e.g. acid chlorides, anhydrides, formates and oxalates).The intermediate (10) and aldehy
- Bergman, Jan,Brynolf, Anna,Elman, Bjoern,Vuorinen, Eino
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p. 3697 - 3706
(2007/10/02)
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- Production of quinazolinone compounds
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2(1H)-Quinazolinone derivatives, which are useful as anti-inflammatory agents, are prepared by heating or hydrolyzing an acylurea derivative. The acylurea derivative can be prepared by either reacting an indole derivative with an oxidizing agent or reacti
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- Process for preparing quinazolines
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Quinazoline derivatives which have anti-inflammatory, antiviral, uricosuric activities are prepared by reacting an indole-2-carbonylazide derivative with an oxidizing agent under mild conditions.
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