- MeOTf/KI-catalyzed efficient synthesis of 2-arylnaphthalenesviacyclodimerization of styrene oxides
-
The MeOTf/KI-catalyzed synthesis of 2-arylnaphthalene derivatives from aryl ethylene oxides in alcohol under ambient conditions is described. The present protocol has a higher atom efficiency and wider substrate applicability with excellent yields. The reaction proceeded using the aryl ethylene oxides to give 2-arylnaphthalenes either in homo-coupling or in cross-coupling. The reaction could also be carried out at the gram scale in minutes.
- Chen, Chao,Xi, Chanjuan,Zhang, Zeyu,Zou, Song
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p. 8559 - 8565
(2021/10/20)
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- DOUBLE-DECKER SILSESQUIOXANE DERIVATIVE AND SYNTHESIZING METHOD THEREOF
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A double-deck silsesquioxane derivative represented by chemical formula 1, a method for preparing the same, and an organic light emitting diode including the derivative are provided. Chemical Formula 1. R is the same as in the above formula. 1 Is a substituted or unsubstituted alkyl group, or a substituted or unsubstituted aryl group. R2 is possible. . Or. Me. (by machine translation)
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Paragraph 0064-0066
(2020/10/10)
-
- Preparation method and purification method of 9,10-substituted anthracene
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The invention belongs to the technical field of organic synthesis and catalysis, and particularly relates to a preparation method for synthesizing 9-(naphthalene-1-yl)-10-(4-(naphthalene-2-yl)phenyl)anthracene through a five-step reaction, and a purification method. The method provided by the invention has the advantages of less catalyst dosage, high synthesis yield, less reaction by-products (impurities) (the content of removed boric acid products is less than 1%, and boric acid self-coupling products are not generated), high product purity (the HPLC purity is greater than or equal to 99.99%)and the like, and can be directly applied to OLED terminal materials of devices, and is simple, easy to operate and suitable for large-scale industrial production.
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Paragraph 0044-0048
(2020/04/17)
-
- Desulfurization of Diaryl(heteroaryl) Sulfoxides with Benzyne
-
Two benzyne-enabled desulfurization reactions have been demonstrated which convert diaryl sulfoxides and heteroaryl sulfoxides to biaryls and desulfurized heteroarenes, respectively. The reaction accessing biaryls tolerates a variety of functional groups, such as halides, pseudohalides, and carbonyls. Mechanistic studies reveal that both reactions proceed via a common assembly process but divergent disassemblies of the generated tetraaryl(heteroaryl) sulfuranes.
- Chen, De-Li,Sun, Yan,Chen, Mengyuan,Li, Xiaojin,Zhang, Lei,Huang, Xin,Bai, Yihui,Luo, Fang,Peng, Bo
-
supporting information
(2019/06/13)
-
- Gold catalysed Suzuki-Miyaura coupling of arenediazonium o-benzenedisulfonimides
-
Arenediazonium o-benzenedisulfonimides have been used as efficient electrophilic partners in Au(I) catalysed Suzuki coupling reactions. The synthetic protocol is general, easy and produced either biaryls or heteroaryl arenes in good yields (51 positive examples, average yield 80%). o-Benzenedisulfonimide was recovered at the end of the reactions and was reused to prepare the starting salts for further reactions. Mechanistic insights suggest that the o-benzenedisulfonimide anion act as an electron transfer agent and promotes a catalytic cycle which does not require the presence of photocatalysts or external oxidants.
- Barbero, Margherita,Dughera, Stefano
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p. 5758 - 5769
(2018/09/10)
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- A thiadiazole compound, a compound for a light-emitting element, light-emitting element, the light emitting device, the authentication device and electronic device
-
PROBLEM TO BE SOLVED: To provide a thiadiazole compound, a compound for light-emitting elements, and a light-emitting element capable of emitting light in the near-infrared region and having high efficiency and long life, and a light-emitting device, an authentication device, and an electronic device having the light-emitting element.SOLUTION: The thiadiazole compound is represented by the following formula (1), wherein Xs each independently represent a hydrogen atom or a functional group, and a ring may be formed by adjacent two or more Xs.
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Paragraph 0141
(2017/07/23)
-
- BLUE FLUORESCENT HOST MATERIALS, AND ORGANIC THIN FILM AND ORGANIC LIGHT EMITTING DEVICES COMPRISING THE SAME
-
The present invention provides an organic compound represented by chemical formula 1, and an organic electroluminescent device comprising the same. The present invention comprises a blue fluorescent host material, thereby providing the organic electroluminescent device having improved driving voltage, light-emitting efficiency, and light-emitting lifespan.COPYRIGHT KIPO 2017
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- BLUE FLUORESCENT DOPANT MATERIALS, AND ORGANIC THIN FILM AND ORGANIC LIGHT EMITTING DEVICES COMPRISING THE SAME
-
The present invention refers to one or more layers including a light emitting layer between anode and cathode is interposed as above wherein at least one of an organic electroluminescent device, comprising of a luminescent layer for organic thin film layer contains said formula 1, formula 2 characterized in that said hole transport material to the light emitting layer employed in conjunction with an organic electroluminescence device number under public affairs substrate. The organic electroluminescence device of the present invention exhibits high efficiency and long lifetime properties. [Formula 1][Formula 2] (by machine translation)
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Paragraph 0202; 0203; 0204; 0205; 0206
(2017/06/23)
-
- Iron Phosphate Catalyzed Asymmetric Cross-Dehydrogenative Coupling of 2-Naphthols with β-Ketoesters
-
Chiral iron phosphate complexes were successfully exploited for asymmetric cross-dehydrogenative coupling reactions between 2-naphthols and β-ketoester derivatives. On the basis of kinetic studies, it is suggested that iron monophosphate complexes constitute the active catalysts that induce stereoselectivity during the carbon-carbon bond-formation step.
- Narute, Sachin,Pappo, Doron
-
supporting information
p. 2917 - 2920
(2017/06/07)
-
- An electroluminescent compound and an electroluminescent device comprising the same
-
The present invention relates to an organic light emitting compound adopted to an organic electroluminescent device. The organic light emitting compound is represented by chemical formula 1 or chemical formula 2. In the case of adopting the organic light emitting compound as a phosphorescence host compound in a hole transport functional layer or a luminous layer, an organic electroluminescent device having excellent luminous characteristics such as operating voltage, brightness, long lifespan, etc.
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Paragraph 0736-0738
(2016/10/10)
-
- Thiadiazole, compound for light-emitting elements, light-emitting element, light-emitting apparatus, authentication apparatus, and electronic device
-
The thiadiazole represented by formula (1), when used as a light-emitting material in a light-emitting element, allows the light-emitting element to emit near-infrared light: wherein, in formula (1), each A independently represents a hydrogen atom, an alkyl group, a substituted or unsubstituted aryl group, a substituted or unsubstituted aryl amino group, or a substituted or unsubstituted triarylamine.
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-
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- An electroluminescent compound and an electroluminescent device comprising the same
-
The present invention relates to an organic light-emitting compound applied to an organic electroluminescent device, represented by chemical Formula 1, and having one or more substituents represented by structural formula 1 or structural formula 2. When the organic light-emitting compound is applied as a host compound or a dopant compound in a light-emitting layer, an organic electroluminescent device having excellent light-emitting properties such as a driving voltage, brilliance, and long lifecycle may be obtained.COPYRIGHT KIPO 2016
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Paragraph 0112; 0131-0133; 0164-0166
(2016/12/01)
-
- ORGANIC ELECTROLUMINESCENT COMPOUND, AND ORGANIC ELECTROLUMINESCENT MATERIAL AND ORGANIC ELECTROLUMINESCENT DEVICE COMPRISING THE SAME
-
The present disclosure relates to an organic electroluminescent compound, and an organic electroluminescent material and an organic electroluminescent device comprising the same. The organic electroluminescent compound of the present disclosure has excellent color purity, solubility, and thermal stability. By comprising the organic electroluminescent compound and the organic electroluminescent material of the present disclosure, an organic electroluminescent device showing low driving voltage, excellent current and power efficiencies, and significantly improved lifespan can be provided.
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Paragraph 255; 256; 257
(2016/04/20)
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- NEW NITROGEN-CONTAINING HETEROCYCLIC COMPOUNDS AND ORGANIC ELECTRONIC DEVICE USING THE SAME
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The present invention refers to novel nitrogenous heterocyclic and optical material using it organic electronic device with high. The present invention according to organic electronic devices efficiency, excellent characteristics such as voltage and life blades, presenting a. (by machine translation)
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Paragraph 0269-0272
(2016/10/07)
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- Platinum-catalyzed C-H arylation of simple arenes
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This report describes the Na2PtCl4 catalyzed C-H arylation of arene substrates with diaryliodonium salts. The site selectivity of these reactions is predominantly controlled by steric factors. Remarkably, Na2PtCl4-catalyzed naphthalene arylation proceeds with opposite site selectivity compared to that obtained with Na2PdCl 4 as the catalyst. Preliminary mechanistic studies provide evidence for a PtII/PtIV catalytic cycle involving rate-limiting C-C bond-forming reductive elimination.
- Wagner, Anna M.,Hickman, Amanda J.,Sanford, Melanie S.
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p. 15710 - 15713
(2013/11/06)
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- Direct C-C bond construction from arylzinc reagents and aryl halides without external catalysts
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Direct cross-coupling between an arylzinc reagent and an aryl halide was accomplished without any external catalyst, enabling efficient and selective formation of the corresponding biaryl compound with broad functional group compatibility. Direct cross-coupling between a diarylzinc compound and an aryl iodide was accomplished without using any external catalyst. The reaction is efficient and selective, enabling formation of the corresponding biaryl compounds with broad functional group compatibility. The reaction is proposed to proceed by a thermally initiated single electron transfer (SET) route. Copyright
- Minami, Hiroki,Wang, Xuan,Wang, Chao,Uchiyama, Masanobu
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p. 7891 - 7894
(2014/01/06)
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- THIADIAZOLE, LIGHT-EMITTING ELEMENT, LIGHT-EMITTING APPARATUS, AUTHENTICATION APPARATUS, AND ELECTRONIC DEVICE
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The thiadiazole represented by formula (2) or (4), when used as a light-emitting material in a light-emitting element, allows the light-emitting element to emit near-infrared light: [In formulae (2) and (4), each R independently represents a hydrogen atom, an alkyl group, or a substituted or unsubstituted aryl group. There may be a ring formed by a carbon linkage between two adjacent R's.]
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Page/Page column
(2013/03/26)
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- THIADIAZOLE-BASED COMPOUND, LIGHT EMITTING ELEMENT COMPOUND, LIGHT EMITTING ELEMENT, LIGHT EMITTING DEVICE, AUTHENTICATION DEVICE, AND ELECTRONIC DEVICE
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Provided is a thiadiazole compound with high efficiency and long life which emits light in a near-infrared region and represented by Formula (I). [In the Formula (I), As each independently represent an aryl group which may have a substituent or a diarylamino group.]
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Page/Page column 49
(2012/11/07)
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- Base- and metal-free C-H direct arylations of naphthalene and other unbiased arenes with diaryliodonium salts
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A novel metal-free direct arylation of unbiased arenes with diaryliodonium triflates in a process where the use of solvents and additives is not required has been established.
- Castro, Susana,Fernandez, Juan J.,Vicente, Ruben,Fananas, Francisco J.,Rodriguez, Felix
-
supporting information
p. 9089 - 9091
(2012/11/07)
-
- NOVEL ORGANIC ELECTROLUMINESCENT COMPOUNDS AND ORGANIC ELECTROLUMINESCENT DEVICE USING THE SAME
-
The present invention relates to a novel organic electroluminescent compound and an organic electroluminescent device using the same. Said organic luminescent compound provides an organic electroluminescent device which has high luminous efficiency and a long operation lifetime and requires a low driving voltage improving power efficiency and power consumption.
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Page/Page column 20-21
(2012/09/22)
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- NOVEL NITROGEN-CONTAINING HETEROCYCLIC COMPOUND AND ORGANIC ELECTRONIC DEVICE USING THE SAME
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The present invention provides a novel nitrogen-containing heterocyclic derivative and an organic electronic device using the same. The organic electronic device according to the present invention has excellent properties in terms of efficiency, driving voltage, and a life span.
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Page/Page column 71
(2011/05/05)
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- ORGANIC ELECTROLUMINESCENCE DEVICE AND ANTHRACENE DERIVATIVE
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An anthracene derivative having a specific asymmetric structure is provided. The asymmetric anthracenes are useful in an organic electroluminescence device and exhibit efficient light emission and a long performance lifetime.
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Page/Page column 24
(2011/02/26)
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- Organometallic Complex, Light-Emitting Element, Light-Emitting Device, Electronic Device, and Lighting Device
-
An object is to provide a novel organometallic complex capable of emitting phosphorescence by using, as a ligand, an organic compound with which a variety of derivatives can be easily synthesized. Another object is to provide an organometallic complex having high heat resistance. Other objects are to provide a light-emitting element having high emission efficiency and to provide a light-emitting device, an electronic device, and a lighting device having reduced power consumption. Provided are an organometallic complex including a structure represented by the following General Formula (G1), and a light-emitting element, a light-emitting device, an electronic device, and a lighting device formed using the organometallic complex including the structure represented by the following General Formula (G1).
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Page/Page column 33-34
(2011/10/13)
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- Gold-catalyzed annulation/fragmentation: Formation of free gold carbenes by retro-cyclopropanation
-
The gold(I)-catalyzed cyclization of 1-(prop-2-yn-1-yl)-2-alkenylbenzenes substituted at the benzylic position with OR groups gives 1,3-disubstituted naphthalenes with concomitant fragmentation of the alkene. One of these annulations proceeds by a retro-cyclopropanation that leads to free gold(I) carbenes.
- Solorio-Alvarado, Cesar R.,Echavarren, Antonio M.
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supporting information; experimental part
p. 11881 - 11883
(2010/10/19)
-
- Palladium-catalyzed cross-coupling of 2,3-naphthoxadisilole with aryl halides
-
Palladium-catalyzed cross-coupling between 2,3-naphthoxadisilole and aryl halides in the presence of tetrabutylammonium fluoride afforded 2-aryl naphthalenes. This is first report that oxadisilole served as a partner in the palladium-catalyzed cross-coupling reactions. The reaction mechanism was also studied.
- Ding, Han,Chen, Yali,Cao, Weiguo,Wu, Kaicheng,Chen, Jie,Lee, Albert W. M.
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experimental part
p. 984 - 991
(2010/05/18)
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- PHENANTHRENE DERIVATIVE, AND MATERIAL FOR ORGANIC EL ELEMENT
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A phenanthrene derivative is represented by a formula (1) below. In the formula (1), Ar1 and Ar2 each represent an aromatic hydrocarbon ring group having 6 to 18 carbon atoms for forming the ring. The aromatic hydrocarbon ring group contains none of anthracene skeleton, pyrene skeleton, aceanthrylene skeleton and naphthacene skeleton. R1 represents a substituent, the number of which may be 0, 1 or more. R1 may be bonded in any position of the phenanthrene skeleton. n and m each represent an integer of 1 to 3. k represents an integer of 0 to 8.
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Page/Page column 95
(2011/01/11)
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- ORGANIC ELECTROLUMINESCENCE DEVICE AND ANTHRACENE DERIVATIVE
-
An organic electroluminescence device which comprises a cathode, an anode and an organic thin film layer comprising at least one layer comprising a light emitting layer and disposed between the cathode and the anode, wherein at least one layer in the organic thin film layer comprises an anthracene derivative having a specific structure singly or as a component of a mixture, and an anthracene derivative having a specific asymmetric structure and providing an organic electroluminescence device exhibiting a great efficiency of light emission and having a long life, are provided.
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-
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- NAPHTHALENE DERIVATIVE, MATERIAL FOR ORGANIC ELECTROLUMINESCENCE DEVICE, AND ORGANIC ELECTROLUMINESCENCE DEVICE USING THE SAME
-
A naphthalene derivative represented by the following formula (1) is provided. In the formula, Ar1 to Ar4 each represent an aromatic hydrocarbon cyclic group having 6 to 18 carbon atoms forming a ring. The aromatic hydrocarbon cyclic group has none of anthracene skeleton, pyrene skeleton, aceanthrylene skeleton and naphthacene skeleton. n, m and 1 each represent an integer in a range of 1 to 5. p represents an integer in a range of o to 5. When n, m, 1 and p each are 2 or more, a plurality of Ar1 to Ar4 may be mutually the same or different.
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-
-
- AROMATIC AMINE DERIVATIVE AND ORGANIC ELECTROLUMINESCENT DEVICE USING SAME
-
Provided are a novel aromatic amine derivative represented by the following general formula (1) and an organic electroluminescent device including an organic thin film formed of one or a plurality of layers including at least a light emitting layer interposed between a cathode and an anode, in which at least one layer of the organic thin film contains the aromatic amine derivative alone or as a component of a mixture, which contributes to suppressing molecular crystallization and improving yield in the production of an organic electroluminescent device, whereby an organic electroluminescent device having a long lifetime can be obtained, and the aromatic amine derivative is capable of realizing the organic electroluminescent device: where: R1 represents an aryl group or the like; a represents an integer of 0 to 4; b represents an integer of 1 to 3; and at least one of Ar1 to Ar4 represents a group represented by the following general formula (2): where Ar5 represents a fused aromatic ring group and Ar6 represents an aryl group or an aromatic heterocyclic group, where remaining groups of Ar1 to Ar4, none of which is represented by the general formula (2), each independently represent an aryl group or an aromatic heterocyclic group.
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Page/Page column 27
(2009/01/20)
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- ANTHRACENE DERIVATIVES, ORGANIC ELECTRONIC DEVICES USING ANTHRACENE DERIVATIVES, AND ELECTRONIC APPARATUSES COMPRISING ORGANIC ELECTRONIC DEVICE
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Disclosed is an anthracene derivative, an organic electronic device using the anthracene derivative, and an electronic apparatus including the organic electronic device. The anthracene derivative is capable of being used as a hole injecting material, a hole transporting material, an electron injecting material, an electron transporting material, and a light emitting material in an organic electronic device including an organic light emitting device. In particular, the anthracene derivative is capable of being used alone as a light emitting material and a host or a dopant in a host/dopant system. The organic electronic device is excellent in views of efficiency, driving voltage, life time, and stability.
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Page/Page column 16
(2010/11/30)
-
- NEW ANTHRACENE DERIVATIVES, PREPARATION METHOD THEREOF AND ORGANIC LIGHT EMITTING DIODE USING THE SAME
-
The present invention provides a novel anthracene derivative, a method for preparing the same, and an organic electronic device using the same. The anthracene derivative according to the invention can function alone as a light emitting host, in particular, as a blue host in an organic electronic device. Further, the anthracene derivative according to the invention can also function as a hole injecting or hole transporting material, an electron injecting or electron transporting material, or a light emitting material in an organic electronic device including a light emitting device. Therefore, the organic electronic device according to the present invention shows excellent characteristics in efficiency, drive voltage and stability.
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Page/Page column 63-64
(2010/11/28)
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- FLUORENE COMPOUND AND ORGANIC ELECTROLUMINESCENCE DEVICE
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Provided is a novel fluorene compound, which is represented by the following general formula (1):
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Page/Page column 55-56
(2008/06/13)
-
- AROMATIC AMINE DERIVATIVE AND ORGANIC ELECTROLUMINESCENT DEVICE USING SAME
-
Disclosed is an organic electroluminescent device wherein an organic thin film which is composed of one or more layers including at least a light-emitting layer is interposed between a cathode and an anode. Since at least one layer of the organic thin film contains a novel aromatic amine derivative, which has an asymmetric structure wherein two different amine units are bonded through a linking group, by itself or as a component of a mixture, molecules are hardly crystallized, thereby improving the production yield of the organic electroluminescent device. This organic electroluminescent device has a long life.
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Page/Page column 67-68
(2008/06/13)
-
- AROMATIC AMINE DERIVATIVE AND ORGANIC ELECTROLUMINESCENT DEVICE USING SAME
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Disclosed is a novel aromatic amine derivative having an asymmetric structure. Also disclosed is an organic electroluminescent device wherein an organic thin film composed of one or more layers including at least a light-emitting layer is interposed between a cathode and an anode. Since at least one layer of the organic thin film contains the aromatic amine derivative by itself or as a component of a mixture, molecules are hardly crystallized, thereby improving the production yield of the organic electroluminescent device. This organic electroluminescent device has a long life.
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Page/Page column 64-65
(2008/06/13)
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- ASYMMETRIC MONOANTHRACENE DERIVATIVE, MATERIAL FOR ORGANIC ELECTROLUMINESCENT DEVICE AND ORGANIC ELECTROLUMINESCENT DEVICE UTILIZING THE SAME
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Provided are an asymmetric monoanthracene derivative having a specific structure, a material for an organic EL device comprising the above asymmetric monoanthracene derivative and an organic EL device in which an organic thin film layer comprising a single layer or plural layers including a luminescent layer is interposed between a cathode and an anode, wherein at least one of the above organic thin film layers contains the asymmetric monoanthracene derivative described above in the form of a single component or a mixed component. Provided are an organic electroluminescent (EL) device having a high luminous efficiency and a long life, an asymmetric monoanthracene derivative which materializes the same and a material for an organic EL device.
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Page/Page column 33
(2008/06/13)
-
- ASYMMETRIC-SYNTHESIS CATALYST BASED ON CHIRAL BROENSTED ACID AND METHOD OF ASYMMETRIC SYNTHESIS WITH THE CATALYST
-
A compound usable as an asymmetric synthesis catalyst which can be easily synthesized without using any metal such as a lanthanoid group element; a method of asymmetric synthesis with the compound; and a chiral compound obtained by the asymmetric synthesis method. A Broensted acid is used as a catalyst in asymmetric synthesis, the chiral Broensted acid being represented by formula (1) below or formula (3) below. The asymmetric synthesis method employs the catalyst. Asymmetric synthesis with the catalyst gives a chiral compound.
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Page/Page column 21
(2010/11/08)
-
- Formal total synthesis of (+)-diepoxin σ
-
The highly oxygenated antifungal anticancer natural product (±)-diepoxin σ was prepared in 10 steps and in 15% overall yield from O-methylnaphthazarin. Highlights of the synthetic work include an Ullmann coupling and a possibly biomimetic oxidative spirocyclization for the introduction of the naphthalene ketal as well as the use of a retro-Diels-Alder reaction to unmask the reactive enone moiety in the naphthoquinone bisepoxide ring system. A novel highly bulky chiral binaphthol ligand was developed for a boron-mediated Diels-Alder reaction that constitutes a formal asymmetric total synthesis of (+)-diepoxin σ.
- Wipf, Peter,Jung, Jae-Kyu
-
p. 6319 - 6337
(2007/10/03)
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- Methods of using α-phosphonosulfonate squalene synthetase inhibitors including the treatment of atherosclerosis and hypercholesterolemia
-
α-Phosphonosulfonate compounds are provided which inhibit the enzyme squalene synthetase and thereby inhibit cholesterol biosynthesis. These compounds have the formula STR1 wherein R2 is OR5 or R5a ; R3 and R5 are independently H, alkyl, arylalkyl, aryl or cycloalkyl; R5a is H, alkyl, arylalkyl or aryl; R4 is H, alkyl, aryl, arylalkyl, or cycloalkyl;, Z is H, halogen, lower alkyl or lower alkenyl; and R1 is a lipophilic group which contains at least 7 carbons and is alkyl, alkenyl, alkynyl, mixed alkenyl-alkynyl, aryl, arylalkyl, cycloalkyl, cycloalkylalkyl, heteroaryl, heteroarylalkyl, cycloheteroalkyl, cycloheteroalkylalkyl; as further defined above; including pharmaceutically acceptable salts and or prodrug esters of the phosphonic (phosphinic) and/or sulfonic acids.
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