- Utilizing triazine/pyrimidine acceptor and carbazole-triphenylamine donor based bipolar novel host materials for highly luminescent green phosphorescent OLEDs with lower efficiency roll-off
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In this work, two novel bipolar host materials were designed, synthesized and applied in green phosphorescent based OLEDs. Both the host materials, 4-(2-(4,6-diphenyl-1,3,5-triazin-2-yl)-9H-carbazol-9-yl)-N,N-diphenylaniline (TRZ 1) and 4-(2-(4,6-diphenylpyrimidin-2-yl)-9H-carbazol-9-yl)-N,N-diphenylaniline (PYR 1) exhibited high thermal stability, with decomposition temperatures of 425 °C and 400 °C, respectively. The triplet energy of PYR 1 (2.63 eV) was higher than that of TRZ 1 (2.44 eV), and facilitated suitable energy transfer to the green dopant. The PYR 1 based green device demonstrated an excellent maximum current efficiency of 48.7 cd/A and external quantum efficiency of 16.4%. Interestingly, the green device with PYR 1 showed an outstanding brightness of 95,870 cd/m2, which is three times greater than that of the reference CBP based device (31,370 cd/m2). The bipolar host PYR 1 is a promising material for high luminescent and low efficiency roll off applications, especially for green PhOLEDs.
- Braveenth, Ramanaskanda,Ahn, Dae Hyun,Han, Ji-Hun,Moon, Ji Su,Kim, Si Woo,Lee, Hyuna,Qiong, Wu,Kwon, Jang Hyuk,Chai, Kyu Yun
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Read Online
- Hole transporting material and Organic electroluminescent display device using the same
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The hole transport material of claim 1, wherein the hole transport material is a hole transport material. Provided are an organic electroluminescent device and an electronic device including the same. Chemical Formula 1. Wherein R is as defined in the specification. The hole transport material has excellent external quantum efficiency, excellent luminous efficiency, brightness, thermal stability, and device lifetime, and can be easily used to produce OLED devices which are stable over a long term.
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Paragraph 0071; 0081-0083
(2021/10/19)
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- Discovery and mechanism of action studies of 4,6-diphenylpyrimidine-2-carbohydrazides as utrophin modulators for the treatment of Duchenne muscular dystrophy
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Duchenne muscular dystrophy is a fatal disease with no cure, caused by lack of the cytoskeletal protein dystrophin. Upregulation of utrophin, a dystrophin paralogue, offers a potential therapy independent of mutation type. The failure of first-in-class utrophin modulator ezutromid/SMT C1100 in Phase II clinical trials necessitates development of compounds with better efficacy, physicochemical and ADME properties and/or complementary mechanisms. We have discovered and performed a preliminary optimisation of a novel class of utrophin modulators using an improved phenotypic screen, where reporter expression is derived from the full genomic context of the utrophin promoter. We further demonstrate through target deconvolution studies, including expression analysis and chemical proteomics, that this compound series operates via a novel mechanism of action, distinct from that of ezutromid.
- Vuorinen, Aini,Wilkinson, Isabel V.L.,Chatzopoulou, Maria,Edwards, Ben,Squire, Sarah E.,Fairclough, Rebecca J.,Bazan, Noelia Araujo,Milner, Josh A.,Conole, Daniel,Donald, James R.,Shah, Nandini,Willis, Nicky J.,Martínez, R. Fernando,Wilson, Francis X.,Wynne, Graham M.,Davies, Stephen G.,Davies, Kay E.,Russell, Angela J.
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supporting information
(2021/05/03)
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- Design and synthesis of quinoline-pyrimidine inspired hybrids as potential plasmodial inhibitors
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Presently, artemisinin-based combination therapy (ACT) is the first-line therapy of Plasmodium falciparum malaria. With the emergence of malaria parasites that are resistant to ACT, alternative antimalarial therapies are urgently needed. In line with this
- Kayamba, Francis,Malimabe, Teboho,Ademola, Idowu Kehinde,Pooe, Ofentse Jacob,Kushwaha, Narva Deshwar,Mahlalela, Mavela,van Zyl, Robyn L.,Gordon, Michelle,Mudau, Pertunia T.,Zininga, Tawanda,Shonhai, Addmore,Nyamori, Vincent O.,Karpoormath, Rajshekhar
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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 light emitting element including the same as a light-emitting material and, more specifically, to a heterocyclic compound having excellent light emission properties, such as a driving voltage, light emission efficiency, and service life, and an organic light emitting element including the same. Since the heterocyclic compound according to the present invention is more stable compared to conventional materials and has the excellent light emission properties for the driving voltage or current efficiency, and service life, the organic light emitting element including the same can be more stably driven in a low-voltage and light emission efficiency can be improved.
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Paragraph 0195-0201
(2021/07/27)
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- COMPOUND FOR AN ORGANIC ELECTRIC ELEMENT, AN ORGANIC ELECTRIC ELEMENT USING THE SAME, AND AN ELECTRONIC DEVICE THEREOF
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The present invention provides the compound represented by Formula 1, an organic electric element comprising a first electrode, a second electrode, and an organic material layer formed between the first electrode and the second electrode, and electronic d
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Paragraph 0082-0085
(2021/06/11)
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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 0520; 0539-0544
(2021/01/29)
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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 0540; 0559-0564
(2020/11/28)
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- Heterocyclic compounds and organic light-emitting diode including the same
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The present invention relates to a new heterocyclic compound, and an organic electroluminescent device including the same as a light emitting material, specifically a heterocyclic compound denoted by chemical formula 1, and an organic electroluminescent device having excellent luminance properties including driving voltage and luminance efficiency.
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Paragraph 0445-0451
(2021/01/29)
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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 luminescent compound represented by chemical formula 1 and an organic electroluminescent device including the same. The organic luminescent compound according to the present invention has excellent luminous efficiency and lifetime properties of material, and thus, enables the manufacturing of an organic electroluminescent device having excellent luminous efficiency while having power efficiency and long lifetime properties. [Chemical formula 1].
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Paragraph 0273-0279
(2020/12/16)
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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 0479; 0486-0491
(2020/12/01)
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- Aromatic compound and organoelectro luminescent device comprising the compound
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The present invention relates to an aromatic compound denoted by chemical formula 1, and an organic electroluminescent device comprising the compound. The organic electroluminescent device comprising the aromatic compound by the present invention has low driving voltage, and excellent lifetime properties and luminance efficiency.
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Paragraph 0338-0342; 0350-0355; 0557; 0576-0581
(2020/12/08)
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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 0447-0451; 0458-0462
(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 0494; 0506-0511; 0533-0539
(2021/01/19)
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- ORGANIC COMPOUND AND ORGANIC ELECTROLUMINESCENCE DEVICE USING THE SAME
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The present invention discloses an organic compound resented by the following formula (1) and an organic electroluminescence device using the organic compound. The organic compound may be for lowering a driving voltage or power consumption or increasing a current efficiency of half-life of the organic electroluminescence device. The same definition as described in the present invention.
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Paragraph 0059-0061
(2020/08/05)
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- Fused cyclic compound and organoelectroluminescent device comprising the compound
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PURPOSE: A condensed cyclic compound is provided to drive an organic electroluminescent device at low voltage and to improve brightness and economic efficiency. CONSTITUTION: A condensed cyclic compound is denoted by chemical formula 1. An organic electroluminescence device comprises an anode, a cathode, and a layer containing the condensed cyclic compounds, placed between the anode and the cathode. A light emitting layer between the anode and the cathode contains the condensed cyclic compounds. The organic electroluminescent device further comprises one or more layers selected among a hole injection layer, a hole transport layer, an electron blocking layer, a hole blocking layer, an electron transport layer, and an electron injection layer.
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Paragraph 0049; 0076-0081
(2019/08/30)
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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 show stability and superior light emitting properties such as low driving voltage or current efficiency. CONSTITUTION: A heterocyclic compound is denoted by chemical formula 1. An organic electroluminescent device comprises an anode, a cathode, and layers containing the heterocyclic compounds, which are placed between the anode and the cathode. A light emitting layer between the anode and the cathode contains the heterocyclic compounds. The organic electroluminescent device comprises a hole injection layer, a hole transport layer, an electron blocking layer, a hole blocking layer, an electron transport layer, and an electron injection layer.
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Paragraph 0307-0313
(2019/06/04)
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- COMPOUND FOR ORGANIC ELECTRONIC ELEMENT, ORGANIC ELECTRONIC ELEMENT COMPRISING THE SAME, AND ELECTRONIC DEVICE THEREOF
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A compound represented by chemical formula 1, and a compound. An organic electronic device comprises 1 electrodes, (2) electrodes, and organic layers between the (1) and 2-th electrodes, and an electronic device including the organic electronic element. T
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Paragraph 0130; 0134-0136
(2019/08/23)
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- Biscarbazole derivative host materials and green emitter for OLED emissive region
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An organic electroluminescence device utilizes a novel combination comprising one or more biscarbazole derivative compounds as the phosphorescent host material in combination with a green phosphorescent dopant material in the light emitting region of the device, where the biscarbazole derivative compounds are represented by a formula (1A) or (1B) below; where A1 represents a substituted or unsubstituted nitrogen-containing heterocyclic group having 1 to 30 ring carbon atoms; A2 represents a substituted or unsubstituted aromatic hydrocarbon group having 6 to 30 ring carbon atoms, or substituted or unsubstituted nitrogen-containing heterocyclic group having 1 to 30 ring carbon atoms; X1 and X2 each are a linking group; Y1 to Y4 each represent a substituent; p and q represent an integer of 1 to 4; and r and s represent an integer of 1 to 3; and the green phosphorescent dopant material is a phosphorescent organometallic complex having a chemical structure represented by LL′L″M wherein M is a metal that forms octahedral complexes, L, L′, and L″ are equivalent or inequivalent bidentate ligands wherein each L comprises a substituted or unsubstituted phenylpyridine ligand coordinated to M through an sp2 hybridized carbon and N; and, one of L, L′ and L″ is different from at least one of the other two.
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Page/Page column 99
(2018/05/24)
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- A 6 - phenyl - 6H - 6 - trimethyl [cd] pyrene derivatives and polymerizations and its application
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The invention relates to compounds disclosed a Formula (1), wherein n is 1 or 2; R1-R5 are identical or different, and are respectively independently selected from H atom or C1-C20 aliphatic straight-chain or branched-chain hydrocarbyl groups or aromatic groups; Ar is an aryl group; A is N atom or CH; and L is a single bond or is selected from C4-C10 aromatic rings or aromatic heterocyclic rings. The invention also relates to application of the compounds in organic electroluminescent devices especially as an electron transport material and/or light-emitting body material of an OLED (organic light-emitting diode).
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Paragraph 0131; 0135-0137
(2017/08/02)
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- Organic electroluminescent element and material for organic electroluminescent elements
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An organic electroluminescence device includes: a cathode; an anode; and an organic thin-film layer having one or more layers and provided between the anode and the cathode, in which the organic layer includes an emitting layer. The emitting layer includes a first host material, a second host material and a phosphorescent dopant material. The first host material is a compound represented by a formula (1A). The second host material is a compound represented by a formula (2A).
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Page/Page column 225
(2017/08/08)
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- A 6,6-dimethyl -6H-benzo [cd] pyrenebutyric derivative and its application
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The invention relates to a 6, 6-dimethyl-6H- benzo [cd] pyrene derivative, which is a class of compounds as shown in a formula (I), wherein n is 1 or 2; R1-R5 are five substituent groups at different positions on Ar, the substituent groups are identical or different from each other, and the substituent groups are respectively selected from H atoms, C1-C20 aliphatic linear chains or branch alkyls or C1-C20 aromatic groups, independently; Ar is an aromatic group; A is N atom or CH; L is a single bond, and is selected from C6-C10 aromatic ring or heteroaromatic ring. The invention also discloses an application of the compounds in organic electroluminescent devices, especially, being used as an electron transport material and/or a luminescent host material of OLED (Organic Light Emitting Diode).
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Paragraph 0158; 0160
(2016/10/07)
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- A containing pyrimidine or pyrazine or triazine group [...][...] derivative and application thereof
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The invention provides a novel compound having a structure represented by formula (I). In the formula (I), R1 to R5 are respectively independently selected from C1-C20 aliphatic alkyl groups or C6-C20 aromatic groups; Ar is selected from C4-C30 aromatic rings, C4-C30 N-containing heterocyclic rings, C4-C30 condensed heterocyclic aromatic hydrocarbons, C4-C30 arylamino groups or C4-C30 aryloxy groups; n is 1 or 2; A1 to A4 are N atoms or C atoms, A2 and A4 are the C atoms when the A1 and the A3 are the N atoms, or A2 and A3 are the C atoms when A1 and the A4 are the N atoms, or A1 and A3 are the C atoms when A2 and A4 are the N atoms, or A1 and A2 are the C atoms when A3 and A4 are the N atoms, or A2 is the C atom when A1, A3 and A4 are the N atoms; and L is a singly-bonded or C6-C10 aromatic ring or a C4-C10 N-containing heterocyclic ring. The compound is used in organic electroluminescent devices as an electron transfer layer material or a luminescent host material.
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Paragraph 0103-0106
(2016/10/08)
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- A quinoline [7,8-h] quinoline compound and use thereof
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The invention relates to compounds disclosed a Formula (1), wherein n is 1 or 2; R1-R5 are five substituent groups on Ar in different positions, are identical or different, and are respectively independently selected from H atom or C1-C20 aliphatic straight-chain or branched-chain hydrocarbyl groups or aromatic groups; Ar is an aryl group; A is N atom or CH; and L is a single bond or is selected from C4-C10 aromatic rings or aromatic heterocyclic rings. The invention also relates to application of the compounds in organic electroluminescent devices especially as an electron transport material and/or light-emitting body material of an OLED (organic light-emitting diode).
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Paragraph 0084-0089
(2016/10/08)
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- A 6H - naphtho [2, 1, 8, 7 - klmn] stronger cooperation derivatives and use thereof
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The invention relates to compounds disclosed as Formula (1), wherein n is 1 or 2; Ar1 and Ar2 are respectively aryl group or heteroaryl group; R1-R5 are five substituent groups on Ar2 in different positions, are identical or different, and are respectively independently selected from H atom, C1-C20 aliphatic straight-chain or branched-chain hydrocarbyl groups and aromatic groups; A is N atom or CH; and L is a single bond C4-C10 aromatic ring or aromatic heterocyclic ring. The invention also relates to application of the compounds in organic electroluminescent devices especially as an electron transport material and/or light-emitting body material of an OLED (organic light-emitting diode).
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Paragraph 0201; 0205; 0207
(2017/06/10)
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- COMPOUND FOR ORGANIC ELECTRONIC ELEMENT, ORGANIC ELECTRONIC ELEMENT USING THE SAME, AND AN ELECTRONIC DEVICE THEREOF
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Disclosed is a compound, which is represented by chemical formula 1. In addition, disclosed is an organic electronic element, comprising a first electrode, a second electrode, and an organic matter layer between the first electrode and the second electrode, wherein the organic matter layer contains a compound represented by chemical formula 1. When the compound represented by chemical formula 1 is contained in the organic matter layer, the compound is capable of reducing a driving voltage, and improving light emitting efficiency, stability, and durability.(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 0242-0245
(2016/10/08)
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- Light-emitting element material and light-emitting element
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Disclosed is a light-emitting device material which comprises a compound having a specific structure of a carbazole skeleton and can realize a light-emitting device having high light-emitting efficiency and durability. Also disclosed is a light-emitting device comprising the light-emitting device material.
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Page/Page column 54
(2016/11/17)
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- COMPOUND FOR ORGANIC ELECTRONIC ELEMENT, ORGANIC ELECTRONIC ELEMENT USING THE SAME, AND AN ELECTRONIC DEVICE THEREOF
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A high luminescent efficiency and can emit of the present invention refers to, and/or to enhance the lifetime and an a compound capable, electric device organic using the same electronic device, intended for to provide a. (by machine translation)
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Paragraph 0210; 0212; 0213
(2016/10/09)
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- AROMATIC AMINE DERIVATIVE AND ORGANIC ELECTROLUMINESCENT ELEMENT
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An aromatic amine derivative represented by the following formula (1). In the formula, Ar1 and Ar2 are independently a substituted or unsubstituted aryl group including 6 to 60 ring carbon atoms; L1 is a substituted or unsubstituted arylene group including 6 to 60 ring carbon atoms; L2 is a single bond or a substituted or unsubstituted arylene group including 6 to 60 ring carbon atoms; R1 and R2 are independently a substituted or unsubstituted aryl group including 6 to 60 ring carbon atoms or the like; n is an integer of 0 to 3; m is an integer of 0 to 4; X1 to X5 are independently a nitrogen atom or CR3; provided that at least one of X1 to X5 are a nitrogen atom; R3 is a hydrogen atom, a substituted or unsubstituted aryl group including 6 to 60 ring carbon atom or the like.
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Paragraph 0265-0267
(2016/12/01)
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- MATERIALS FOR ELECTRONIC DEVICES
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The present application relates to a compound of a formula (I) which contains an indenocarbazole group, a carbazole group and an electron-deficient group bonded to the indenocarbazole group. The compound is suitable for use in electronic devices, in parti
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Paragraph 0211-0213
(2016/10/10)
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- 9H-CARBAZOLE COMPOUNDS AND ELECTROLUMINESCENT DEVICES INVOLVING THEM
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The present invention relates to a novel organic luminescent compound and an organic electroluminescent 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 electroluminescent device having an improved power consumption.
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Paragraph 111-112
(2013/03/26)
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- ORGANIC COMPOUNDS FOR ELECTROLUMINESCENT DEVICES
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The invention relates to compounds of the formula (1), to a method for producing compounds of the formula (1), to the use of the compounds in electronic devices and to electronic devices containing compounds according to formula (1), preferably as electron transport materials, as matrix materials, as electron blocking materials or as emitting materials.
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Paragraph 0167; 0168
(2013/03/26)
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- FLUORENE-CONTAINING AROMATIC COMPOUND, MATERIAL FOR ORGANIC ELECTROLUMINESCENT ELEMENT, AND ORGANIC ELECTROLUMINESCENT ELEMENT USING SAME
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A fluorene-containing aromatic compound represented by a formula (1) below. In the formula (1): Nr1 represents a substituted or unsubstituted monocyclic nitrogen-containing aromatic ring having 2 to 5 ring carbon atoms, or a bicyclic nitrogen-containing aromatic ring having 2 to 9 ring carbon atoms; Ar represents an aromatic ring and the like; Fl1 and Fl2 represent a fluorenyl group; and Cz1 and Cz2 represent a carbazolyl group. A compound represented by a formula (2) below is omitted from the fluorene-containing aromatic compound represented by the formula (1).
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Page/Page column 43-44
(2012/09/10)
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- BIS-CARBAZOLE DERIVATIVE, MATERIAL FOR ORGANIC ELECTROLUMINESCENT ELEMENT AND ORGANIC ELECTROLUMINESCENT ELEMENT USING SAME
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A biscarbazole derivative of the invention is represented by a formula (1A or (1B) below. In the formula (1A) or (1B): A1 represents a substituted or unsubstituted nitrogen-containing heterocyclic group having 1 to 30 ring carbon atoms; A2 represents a substituted or unsubstituted aromatic hydrocarbon group having 6 to 30 ring carbon atoms, or substituted or unsubstituted nitrogen-containing heterocyclic group having 1 to 30 ring carbon atoms; X1 and X2 each are a linking group; Y1 to Y4 each represent a substituent; p and q represent an integer of 1 to 4; and r and s represent an integer of 1 to 3.
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Page/Page column 114-115
(2012/02/15)
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- MATERIALS FOR ORGANIC ELECTROLUMINESCENT DEVICES
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The present invention describes novel indenofluorene derivatives which can preferably be employed as matrix materials for phosphorescent dopants or as electron-transport materials, in particular for use in the emission and/or charge-transport layer of electroluminescent devices. The invention furthermore relates to polymers which comprise these compounds as structural units and to a process for the preparation of the compounds according to the invention and to electronic devices which comprise same.
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- NOVEL ORGANIC ELECTROLUMINESCENT COMPOUNDS AND ORGANIC ELECTROLUMINESCENT DEVICE USING THE SAME
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Provided are organic electroluminescent compounds of a fused pentacyclic structure of general formula I, and an organic electroluminescent device using said compounds. Since the organic electroluminescent compounds exhibit good luminous efficiency and lifespan, they may be used to manufacture OLED devices which have a superior operational lifetime and also have low power consumption due to the improved power efficiency of the compounds.
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Page/Page column 17
(2011/08/21)
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- NOVEL ORGANIC ELECTROLUMINESCENT COMPOUNDS AND ORGANIC ELECTROLUMINESCENT DEVICE USING THE SAME
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Provided are novel organic electroluminescent compounds of Chemical Formula 1 (wherein X, B1-B8, A1, A2 and R1-R6 are as defined in the application) and an organic electroluminescent device
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Page/Page column 14; 15
(2011/06/26)
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- NOVEL ORGANIC ELECTROLUMINESCENT COMPOUNDS AND ORGANIC ELECTROLUMINESCENT DEVICE USING THE SAME
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Provided are organic electroluminescent compounds of Chemical Formula I and an organic electroluminescent device using said compounds. When used as a host material of an organic electroluminescent material of an OLED device, the organic electroluminescent compound exhibits good luminous efficiency and excellent life property of the material. Therefore, it may be used to manufacture OLEDs having very good operation life.
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Page/Page column 13
(2011/11/13)
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- NOVEL ORGANIC ELECTROLUMINESCENT COMPOUNDS AND ORGANIC ELECTROLUMINESCENT DEVICE USING THE SAME
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Provided are a novel organic electroluminescent compound and an organic electroluminescent device using the same. Since the organic electroluminescent compound disclosed herein exhibits good luminous efficiency and excellent life property compared to the existing host material, it may be used to manufacture OLED devices having very superior operation life and consuming less power due to improved power efficiency.
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Page/Page column 17-18
(2011/02/24)
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- NOVEL ORGANIC ELECTROLUMINESCENT COMPOUNDS AND ORGANIC ELECTROLUMINESCENT DEVICE USING THE SAME
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Provided are novel organic electroluminescent compounds and an organic electroluminescent device using the same. Since the organic electroluminescent compound exhibits good luminous efficiency and excellent life property compared to the existing host material, it may be used to manufacture OLED devices having very superior operation life and consuming less power due to improved power efficiency.
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Page/Page column 13-14
(2011/09/15)
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- The AZARYPHOS family of ligands for ambifunctional catalysis: Syntheses and use in ruthenium-catalyzed anti-markovnikov hydration of terminal alkynes
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The family of AZARYPHOS (aza-aryl-phosphane) phosphane ligands, containing a phosphine unit and sterically shielded nitrogen lone pairs in the ligand periphery, is introduced as a tool for developing ambifunctional catalysis by the metal center and nitrogen lone pairs in the ligand sphere. General synthetic strategies have been developed to synthesize over 25 examples of structurally diverse (6-aryl-2pyridyl)phosphanes (ARPYPHOS), (6alkyl-2-pyridyl)phosphanes (ALPY-PHOS), 4,6-disubsituted l,3-diazin-2ylphosphanes or l,3,5-triazin-2- ylphosphanes, quinazolinylphosphanes, quinolinylphosphanes, and others. The scalable syntheses proceed in a few steps. The incorporation of AZARYPHOS ligands (L) into complexes [RuCp(L)2(MeCN)][PF6] (Cp = cyclopentadieny1)gives catalysts for the anti-Markovnikov hydration of terminal alkynes of the highest known activities. Electronic and steric ligand effects modulate the reaction kinetics over a range of two orders of magnitude. These results highlight the importance of using structurally diverse ligand families in the process of developing cooperative ambifunctional catalysis by a metal and its ligand.
- Hintermann, Lukas,Dang, Tuan Thanh,Labonne, Aurelie.,Kribber, Thomas,Xiao, Li,Naumov, Pance
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supporting information; experimental part
p. 7167 - 7179
(2010/02/28)
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- SUBSTITUTED AMINO CARBOXYLIC ACIDS
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Disclosed are compounds and pharmaceutically acceptable salts of formula (I): which are useful in the treatment of metabolic disorders related to insulin resistance, leptin resistance, or hyperglycemia. Compounds of the invention include inhibitors of Protein tyrosine phosphatases, in particular Protein tyrosine phosphatase-1B (PTP-1B), that are useful in the treatment of diabetes and other PTP mediated diseases, such as cancer, neurodegenerative diseases and the like. Also disclosed are pharmaceutical compositions comprising compounds of the invention and methods of treating the aforementioned conditions using such compounds.
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Page/Page column 175
(2008/06/13)
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- The synthesis of substituted phenylpyrimidines via Suzuki coupling reactions
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This paper describes the mon-, di-, and triarylation of the pyrimidine ring. It is possible to introduce one or more aryl rings in generally good yields and in a specific order, namely first in position 4, second in position 6, followed by position 2. A s
- Delia, Thomas J.,Schomaker, Jennifer M.,Kalinda, Alvin S.
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p. 127 - 131
(2007/10/03)
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- SUBSTITUTED HETEROARYLS AS INHIBITORS OF PROTEIN TYROSINE PHOSPHATASES
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Disclosed are compounds and pharmaceutically acceptable salts of formula (I), which are useful in the treatment of metabolic disorders related to insulin resistance, leptin resistance, or hyperglycemia. Compounds of the invention include inhibitors of Protein tyrosine phosphatases, in particular Protein tyrosine phosphatase-1B (PTP-1B), that are useful in the treatment of diabetes and other PTP mediated diseases, such as cancer, neurodegenerative diseases and the like. Also disclosed are pharmaceutical compositions comprising compounds of the invention and methods of treating the aforementioned conditions using such compounds.
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Page 35-36; 53; 90
(2010/02/09)
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- Coating compositions stabilized against damage by light, heat and oxygen
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Coatings comprisingA) a binder based on an organic polymer andB) as stabilizer against damage by light, heat and oxygen, a 2-(2′-hydroxyphenyl)-1,3-pyrimidine of the formula I ?in which the radicals R1 to R6 are as defined in claim 1 have an outstanding resistance to the damaging effects of light, oxygen and heat. Compounds of the formula Ib defined in claim 18 are suitable in general for the stabilization of organic material.
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Page column 40-41
(2008/06/13)
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- Arylation of halogenated pyrimidines via a suzuki coupling reaction
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The Suzuki coupling reaction has been used extensively for the synthesis of a wide variety of unsymmetrical biaryl compounds. We have extended this reaction to demonstrate the utility of preparing monophenyl-, diphenyl-, or triphenylpyrimidine depending on the reaction conditions. Further, it has been shown that chloropyrimidine substrates are preferable over iodo-, bromo-, or fluoropyrimidines.
- Schomaker,Delia
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p. 7125 - 7128
(2007/10/03)
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- Efficient coupling of 2-halopyrimidines to 2,2'-bipyrimidines
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2-chloropyrimidine, 2-chloro- and 2-bromo-4,6-dimethylpyrimidines, 2-chloro- and 2-bromo-4,6-diphenylpyrimidines have been dimerized to the corresponding 2,2'-bipyrimidines in good yields by Tiecco's method using NiCl2, triphenylphosphine and zinc in DMF.
- Nasielski,Standaert,Nasielski-Hinkens
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p. 901 - 906
(2007/10/02)
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- Metallation Studies with Pyrimidines
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2-Alkylamino-4,6-diphenylpyrimidines are acylated only at nitrogen after treatment with lithium di-isopropylamide (LDA). 4,6-Diaryl-1-benzylpyrimidin-2(1H)-ones can be acylated and alkylated at the α-CH3 group. 1-Methyl-4,6-di-p-tolylpyrimidin-2(1H)-one f
- Katrizky, Alan R.,Salgado, Hector J.,Chermprapai, Amornsri,Ponkshe, Narayan K.
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p. 153 - 158
(2007/10/02)
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