- Efficient synthesis of 1,2,3,4-tetrahydro-11H-benzo[a]carbazole and its regioselective oxidation
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Carbazole derivative 4 was synthesized in an efficient three-step sequence and its further oxidation with dichlorodicyanoquinone gave selectively 4-oxo-1,2,3,4-tetrahydro-11H-benzo[a]carbazole 3. Georg Thieme Verlag Stuttgart.
- Dufour, Fabien,Kirsch, Gilbert
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Read Online
- A one-pot direct regioselective iodination of Fischer-Borsche product using periodic acid in PEG-400
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A metal-free and greener approach for the one-pot direct iodination and dehydrogenation of dihydrobenzo[a]carbazoles has been developed using periodic acid in polyethylene glycol-400 (PEG-400) under mild condition. This method has been proven to be tolerate to a broad range of functional groups, with good to excellent yields include metal-free inexpensive catalyst, easy work-up, benign reaction condition and high regioselectivity. The solvent has been successfully recycled up to 5 times without any loss of activity in an aqueous medium.
- Ghom, Monica H.,Naykode, Mahavir S.,Humne, Vivek T.,Lokhande, Pradeep D.
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Read Online
- Behavior of oxotetrahydrobenzo[b]- and [c]thiophenes and their α-hydroxymethylene derivatives in the fischer indole synthesis
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We described an approach to thienocarbazoles via a Fischer indole synthesis starting directly from oxotetrahydrobenzo[b]- and [c]thiophenes or from their α-hydroxymethylene derivatives with a Japp-Klingemann reaction to make the hydrazones which are cyclised under acidic conditions.
- Martarello, Laurent,Joseph, Delphine,Kirsch, Gilbert
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Read Online
- Chemoselective Borono-Catellani Arylation for Unsymmetrical Biaryls Synthesis
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Reported is the borono-Catellani arylation process for unsymmetrical biaryls synthesis, utilizing the readily available pinacol ester of arylboronic acids, aryl bromides, and olefins as the reactants. The distinct reactivity of arylboronic ester and aryl bromides secures the excellent chemoselectivity in the pivotal arylation step. The reaction is enabled by the cooperative catalysis of Pd(OAc)2 and the NBE derivative N7, with molecular oxygen as the terminal oxidant.
- Wang, Peng,Chen, Shuqing,Zhou, Zhiyu,Cheng, Hong-Gang,Zhou, Qianghui
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Read Online
- Novel D-π-A benzocarbazole dyes with simple structures for efficient dye-sensitized solar cells
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Three benzocarbazole dyes were synthesized with N-butylbenzocarbazole as the electron donor, benzene, furan and thiophene as π-bridge, and cyanoacrylic acid as the electron acceptor. Their photophysical properties and photovoltaic performance were investigated and compared among three π-bridges. The incorporation of thiophene or furan unit favors intramolecular charge transfer through reducing the energy gap and improving the molecular conjugation due to their electron-rich properties and small volume compared with benzene unit. On the other hand, weakening coplanarity of dye with benzene bridge contributes to the antiaggregation and accordingly increase VOC, though decreases photo-generated current. Among three dyes, dye with furan bridge achieves the optimal photovoltaic performance 7.67% due to the highest JSC 15.45 mA cm?2.
- Han, Liang,Meng, Xiaozhou,Ke, Yong'an,Ye, Hongqiang,Cui, Yanhong
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Read Online
- 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 related. In Chemical Formula 1 to Chemical Formula 3, each substituent is the same as described in the specification.
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Paragraph 0163; 0166-0167; 0183; 0186-0187
(2021/03/13)
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- Convenient One-Pot Synthesis of 9 H -Carbazoles by Microwave Irradiation Employing a Green Palladium-Based Nanocatalyst
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An efficient palladium-catalyzed tandem reaction for the one-pot synthesis of 9 H -carbazoles under microwave irradiation is developed. This approach involves a sequential Buchwald-Hartwig amination and a direct arylation from affordable and inexpensive anilines and 1,2-dihaloarenes. For the development of this purpose, a novel and magnetically recoverable palladium nanocatalyst supported on a green biochar under ligand-free conditions is used. Compared to other existing palladium-based protocols, the present synthetic methodology shows a drastic reduction in reaction times and excellent compatibility with different functional groups allowing to obtain a small library of 9 H -carbazoles in high yields and with good regioselectivity. This procedure represents the first example in the direct synthesis of carbazoles using a heterogeneous palladium nanocatalyst from commercial precursors. To examine the application of this protocol, a direct and scalable synthesis of the bioactive carbazole alkaloid clausenalene from commercially available starting materials is described.
- Steingruber, H. Sebastián,Mendioroz, Pamela,Volpe, María A.,Gerbino, Darío C.
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p. 4048 - 4058
(2021/08/03)
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- 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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- NaI/PPh3-Mediated Photochemical Reduction and Amination of Nitroarenes
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A mild transition-metal- and photosensitizer-free photoredox system based on the combination of NaI and PPh3 was found to enable highly selective reduction of nitroarenes. This protocol tolerates a broad range of reducible functional groups such as halogen (Cl, Br, and even I), aldehyde, ketone, carboxyl, and cyano. Moreover, the photoredox catalysis with NaI and stoichiometric PPh3 provides also an alternative entry to Cadogan-type reductive amination when o-nitrobiarenes were used.
- Qu, Zhonghua,Chen, Xing,Zhong, Shuai,Deng, Guo-Jun,Huang, Huawen
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supporting information
p. 5349 - 5353
(2021/07/21)
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- Copper-mediated rapid and facile oxidative dehydrogenation of dihydrobenzocarbazoles
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Rapid method for the oxidative dehydrogenation of dihydrobenzocarbazoles has been introduced by using bench scale and commercially available reagent; copper chloride, in excellent yield with easy workup. The scope of the reaction has been studied with broad range of substitutes.
- Humne, Vivek T.,Ulhe, Avinash G.
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supporting information
(2020/03/16)
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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; 0159-0162
(2020/05/30)
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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; 0378-0380; 0383-0384
(2020/11/28)
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- Pd-Catalyzed Reductive Cyclization of Nitroarenes with CO2 as the CO Source
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A reductive amination process that constructs indoles, carbazoles or benzimidazoles from nitroarenes – irrespective of their electronic or steric nature – was developed that uses CO2 as the source of CO. The process is robust, tolerating common gaseous components of flue gas (H2S, SO2, NO and H2O) without adversely affecting the reductive cyclization.
- Guan, Xinyu,Zhu, Haoran,Zhao, Yingwei,Driver, Tom G.
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- Visible-light-induced oxidation/[3 + 2] cycloaddition/oxidative aromatization to construct benzo[ a]carbazoles from 1,2,3,4-tetrahydronaphthalene and arylhydrazine hydrochlorides
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An efficient synthesis of benzo[a]carbazoles via visible-light-induced tandem oxidation/[3 + 2] cycloaddition/oxidative aromatization reactions was reported. The benzylic C(sp3)-H of tetrahydronaphthalene was activated through visible-light photoredox catalyst with oxygen as the clean oxidant under mild reaction conditions. This protocol proceeds efficiently with broad substrate scope, and the mechanism study was performed.
- Shen, Jiaxuan,Li, Nannan,Yu, Yanjiang,Ma, Chunhua
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p. 7179 - 7183
(2019/09/30)
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- COMPOSITION AND ORGANIC OPTOELECTRONIC DEVICE AND DISPLAY DEVICE
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A composition including a first compound, the first compound being represented by a combination of Chemical Formula 1 and Chemical Formula 2 bonded together, and a second compound, the second compound being represented by Chemical Formula 3, as well as 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 0116-0117; 0120-0121; 0138-0139; 0142-0143
(2020/02/19)
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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 0178-0179; 0181; 0191; 0193
(2020/02/22)
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- Organic electroluminescent material and organic electroluminescent device
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The invention provides a novel organic electroluminescent material and an organic electroluminescent device using the same. The organic electroluminescent material of the present invention is represented by a general formula (1), wherein the meanings of Ar, L, R to R, n, m and p are as shown in the description.
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Paragraph 0090-0091; 0094-0095
(2019/12/15)
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- Br?nsted acidic ionic liquid catalyzed synthesis of benzo[a]carbazole from renewable acetol and 2-phenylindoles in a biphasic system
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An efficient metal-free strategy for the synthesis of pharmaceutically relevant benzo[a]carbazoles from the derivatives of readily available 2-phenylindole and bio-renewable acetol in an aqueous biphasic system was developed. This protocol employed a sulfone-containing Br?nsted acidic ionic liquid as the catalyst, which could be used for five times without a noticeable decrease in its activity and selectivity. Various substituted 2-phenylindoles and α-hydroxyketones participated in the reaction smoothly, with water as the sole byproduct. Mechanistically, the reaction involved the conventional carbon-nucleophile-induced Heyns-type rearrangement and downstream intramolecular olefination.
- Li, Minghao,Wu, Fengtian,Gu, Yanlong
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p. 1135 - 1140
(2019/07/09)
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- COMPOUND FOR ORGANIC ELECTRONIC ELEMENT, ORGANIC ELECTRONIC ELEMENT USING THE SAME, AND AN ELECTRONIC DEVICE THEREOF
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To an embodiment of 1 the present invention, 1 since, the 2 organic material layer includes 1 the compound represented 2 by the formula, the, organic material layer of the organic. material layer, 1 and the organic material, layer, the organic material layer may be formed of the compound represented by the general formula in the organic material layer, and the organic material layer may. be formed of the compound represented by the general formula (I). (by machine translation)
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- DICYANOPYRAZINE COMPOUND, LUMINESCENT MATERIAL, LUMINESCENCE DEVICE USING THE SAME, AND METHOD FOR PRODUCING 2,5-DICYANO-3,6-DIHALOGENOPYRAZINE
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A compound represented by formula (I) or formula (1I): in formula (I), R3 represents an electron donating group, R4 represents a hydrogen atom, a substituted or unsubstituted aryl group or an electron donating group, L3 represents a substituted or unsubstituted heteroarylene group or a substituted or unsubstituted arylene group, L4 represents a single bond, a substituted or unsubstituted heteroarylene group or a substituted or unsubstituted arylene group, L3 and L4 may bond together to form a ring with the carbon atoms to which they are bonded, in formula (II), R5 represents an electron donating group, R6 represents a hydrogen atom, a substituted or unsubstituted aryl group or an electron donating group, L5 represents a substituted or unsubstituted heteroarylene group or a substituted or unsubstituted arylene group, L6 represents a single bond, a substituted or unsubstituted heteroarylene group or a substituted or unsubstituted arylene group.
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Paragraph 0170; 0173; 0174
(2018/10/19)
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- Relay Catalysis of Bismuth Trichloride and Byproduct Hydrogen Bromide Enables the Synthesis of Carbazole and Benzo[α]carbazoles from Indoles and α-Bromoacetaldehyde Acetals
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Benzo[α]carbazoles were synthesized from 2-phenylindoles and α-bromoacetaldehyde using bismuth trichloride as a catalyst. The reaction was triggered by a bismuth trichloride-catalyzed Friedel-Crafts alkylation of these two precursors, which provided a tryptaldehyde intermediate that underwent intramolecular olefination to form the final product. Interestingly, the HBr byproduct generated in the upstream step of the reaction catalyzed the following downstream reaction steps, thus creating a byproduct-participated relay catalytic process. Motivated by this mechanism, we developed a three-component reaction of indole, α-bromoacetaldehyde acetal, and 1,3-dicarbonyl compounds. This study offers a straightforward method for synthesizing substituted carbazoles. (Figure presented.).
- Wu, Fengtian,Huang, Wenbo,Yiliqi,Yang, Jian,Gu, Yanlong
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p. 3318 - 3330
(2018/08/01)
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- Nitrogen-Iodine Exchange of Diaryliodonium Salts: Access to Acridine and Carbazole
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A nitrogen-iodine exchange protocol of diaryliodonium salts with sodium azide salt is developed for general construction of significant functional acridines and carbazoles, in which introduction of nitrogen at a late stage was successfully established avoiding heteroatom incompatibility. Inorganic sodium azide served as the sole nitrogen atom source in this transformation. The diversiform functional acridines and carbazoles were comprehensively achieved through annulated diaryliodonium salts, respectively. Notably, Acridine orange (a fluorescent indicator for cell lysosomal dye) and Carprofen (a nonsteroidal anti-inflammatory drug) were efficiently established through this protocol.
- Wang, Ming,Fan, Qiaoling,Jiang, Xuefeng
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p. 216 - 219
(2018/01/17)
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- Carbazole compound, and synthesis method and application of compound
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The invention discloses a carbazole compound represented by a formula (2) and a synthesis method of the compound. A high-iodine salt is taken as a reaction raw material, and under the action of an inorganic nitrogen reagent, an additive, a base and a metal catalyst, a reaction is carried out in a solvent under a condition of 80-150 DEG C to obtain various carbazole compounds. According to the method provided by the invention, nitrogen atoms are introduced in a later period, so that the non-compatibility of nitrogen heterocyclic rings to the reaction conditions such as the metal catalyst and the like in an early reaction period is avoided. In addition, two aryl groups in the high-iodine salt are fully utilized, so that the atomic economic efficiency of the method provided by the present invention is fully exhibited. The carbazole compound prepared by the method provided by the invention can be further applied to the synthesis of non-steroidal anti-inflammatory drug carprofen.
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Paragraph 0082-0085
(2018/06/15)
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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 an indole compound, to a compound for an organic electric element containing a derivative thereof, to an organic electric element using same, and to a corresponding electronic device. According to the present invention, the luminous efficiency, color purity, and lifespan of the element can be improved, and the drive voltage thereof can be decreased.
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Paragraph 0136; 0137
(2018/08/19)
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- Photochemical intramolecular amination for the synthesis of heterocycles
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Polycyclic heterocycles can be formed in good to excellent yields via photochemical conversion of the corresponding substituted aryl azides under irradiation with purple LEDs in a continuous flow reactor. The experimental set-up is tolerant to UV-sensitive functional groups while affording diverse carbazoles, as well as an indole and pyrrole framework, in short reaction times. The photochemical method is presumed to progress through a mechanism differing from the other methods of azide activation involving transition metal catalysis.
- Parisien-Collette, Shawn,Cruché, Corentin,Abel-Snape, Xavier,Collins, Shawn K.
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supporting information
p. 4798 - 4803
(2017/10/23)
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- HETEROCYCLIC COMPOUND AND ORGANIC LIGHT EMITTING DEVICE COMPRISING THE SAME
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The present specification provides a heterocyclic compound of chemical formula 1, and an organic light-emitting device comprising the same. The compound described in the present specification may be used as a material for an organic material layer in an organic light-emitting device to improve efficiency, low driving voltage, and/or lifetime characteristics of the organic light-emitting device. Additionally, the present specification provides an organic light-emitting device which comprises: a first electrode; a second electrode facing the first electrode; and one or more organic material layers disposed between the first electrode and the second electrode, wherein at least one of the organic material layers comprises the compound of chemical formula 1.COPYRIGHT KIPO 2017
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Paragraph 0222; 0223; 0226; 0227
(2017/12/27)
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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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Paragraph 0126
(2017/07/04)
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- Iron-Catalyzed Intramolecular C(sp2)-H Amination
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The nucleophilic iron complex Bu4N[Fe(CO)3(NO)] (TBA[Fe]) catalyzes the direct intramolecular C-H amination of α-azidobiaryls and (azidoaryl)alkenes into the corresponding carbazoles and indoles, respectively, under mild conditions and with low catalyst loadings. These features and the broad functional-group tolerance render this method a particularly attractive alternative to established noble-metal-based procedures.
- Alt, Isabel T.,Plietker, Bernd
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supporting information
p. 1519 - 1522
(2016/02/14)
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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 0193-0198
(2016/10/20)
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- COMPOUND, ORGANIC LIGHT EMITTING DIODE INCLUDING THE SAME AND DISPLAY INCLUDING THE ORGANIC LIGHT EMITTING DIODE
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The present invention relates to a compound, an organic light emitting device comprising the same, and a display device comprising the organic light emitting device. By providing a compound represented by chemical formula 1, an organic light emitting device having an excellent service life property with electrochemical and thermal stability and a high luminous efficiency even at a low driving voltage can be provided.
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Paragraph 0521; 0525-0526
(2016/12/01)
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- ORGANIC OPTOELECTRIC DEVICE AND DISPLAY DEVICE
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An organic optoelectric deviceincludes an anode and a cathode facing each other, an emission layer between the anode and the cathode, a hole transport layer between the anode and the emission layer, and a hole transport auxiliary layer between the hole transport layer and the emission layer, wherein the hole transport auxiliary layer includes a first compound represented by Chemical Formula 1 and a second compound represented by Chemical Formula 2 or a combination of Chemical Formulae 3 and 4, and a display device is disclosed. Explanations of Chemical Formulae 1 to 3 are the same as described in specification.
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Paragraph 0112
(2019/01/06)
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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; 0206; 0207; 0210; 0211
(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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- An electric element for an organic compound, an organic electronic device and its electric element
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The present invention provides a novel compound which is capable of improving light-emitting efficiency, stability and lifespan of an element, an organic electronic element using the same, and an electronic device thereof.
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Paragraph 0038; 0040
(2016/10/07)
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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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- HETEROCYCLIC COMPOUND AND ORGANIC LIGHT EMITTING DEVICE COMPRISING THE SAME
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Provided in the present invention are a heterocyclic compound and an organic light emitting device including the same. The heterocyclic compound according to embodiments of the present invention has a proper energy level, and has excellent electrochemical stability and thermal stability. Therefore, the organic light emitting device including the compound provides high efficiency and/or high driving stability. Moreover, provided in an embodiment of the present invention is an organic light emitting device which comprises a first electrode; and a second electrode facing a first electrode; and an organic substance layer of one or more layer including a light emitting layer formed between the first electrode and the second electrode, wherein one or more layer among the organic substance layer includes the heterocyclic compound.COPYRIGHT KIPO 2015
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Paragraph 0253; 0256-0257; 0268-0269
(2016/10/10)
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- A combined experimental and computational study on the cycloisomerization of 2-ethynylbiaryls catalyzed by dicationic arene ruthenium complexes
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Ruthenium-catalyzed cycloisomerization of 2-ethynylbiaryls was investigated to identify an optimal ruthenium catalyst system. A combination of [η6-(p-cymene)RuCl2(PR3)] and two equivalents of AgPF6 effectively converted 2-ethynylbiphenyls into phenanthrenes in chlorobenzene at 120 °C over 20 h. Moreover, 2-ethynylheterobiaryls were found to be favorable substrates for this ruthenium catalysis, thus achieving the cycloisomerization of previously unused heterocyclic substrates. Moreover, several control experiments and DFT calculations of model complexes were performed to propose a plausible reaction mechanism.
- Yamamoto, Yoshihiko,Matsui, Kazuma,Shibuya, Masatoshi
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supporting information
p. 7245 - 7255
(2015/05/05)
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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 0121; 0122; 0126; 0129; 0130
(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 0148; 149; 150; 151
(2016/10/07)
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- ORGANIC LIGHT COMPOUND AND ORGANIC LIGHT DEVICE USING THE SAME
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PURPOSE: An organic electroluminescent device is provided to provide high luminance efficiency, high luminance, high color purity, and extremely improved life time. CONSTITUTION: An organic electroluminescent comprises a first electrode, a second electrode, and at least one organic layer between the first electrode and the second electrode. The organic layer comprises an organic luminescent compound in chemical formula F1a, F1b, or F2. In the chemical formulas, P1 and P2 is selected from a group consisting of a C5-40 aryl group, a C5-40 heteroaryl group, a C5-40 aryloxy group, a C5-40 arylamino group, C5-40 diarylamino group, C6-40 arylalkyl group, or a group forming a fused aliphatic ring, a fused aromatic ring, a fused heteroaliphatic ring, or a fused heteroaromatic ring together with a neighboring group.
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- BENZINDOLOCARBAZOLE DERIVATIVE, LIGHT-EMITTING ELEMENT MATERIAL PRODUCED USING SAME, AND LIGHT-EMITTING ELEMENT
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The present invention provides an organic thin film light emitting device having high luminous efficiency and durable life realized by using a benzindolocarbazole derivative as represented by either general formula (1-1) or (1-2) given below: [Chemical compound 1] wherein R1 to R24 may be identical to or different from each other and are selected from the group consisting of a hydrogen atom, alkyl group, cycloalkyl group, heterocyclic group, amino group, alkenyl group, cycloalkenyl group, alkynyl group, alkoxy group, alkylthio group, aryl ether group, aryl thioether group, aryl group, heteroaryl group, halogen atom, carbonyl group, carboxyl group, oxycarbonyl group, carbamoyl group, silyl group, and -P(=O)R25R26; R25 and R26 represent either an aryl group or a heteroaryl group; R25 and R26 may be condensed to form a ring; L1 to L4 independently represent a single bond, a substituted or unsubstituted arylene group, or a substituted or unsubstituted heteroarylene group; and A1 to A4 independently represent an amino group, aryl group, heterocyclic group, or heteroaryl group.
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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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- Palladium-catalyzed α-arylation of enones in the synthesis of 2-alkenylindoles and carbazoles
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A new unified strategy has been developed for the synthesis of substituted 2-alkenylindoles and carbazoles. The strategy uses palladium-catalyzed α-arylation of TES-enol ethers of enones as the key step. The method is highly regioselective, provides good yields, and is expected to have wide application.
- Kale, Ajit Prabhakar,Kumar, Gangam Srikanth,Mangadan, Arun Raj Kizhakkayil,Kapur, Manmohan
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supporting information
p. 1324 - 1327
(2015/03/14)
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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 0069
(2016/06/01)
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- Rapid synthesis of fused N-heterocycles by transition-metal-free electrophilic amination of arene C-H bonds
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We disclose an efficient and operationally simple protocol for the preparation of fused N-heterocycles starting from readily available 2-nitrobiaryls and PhMgBr under mild conditions. More than two dozen N-heterocycles, including two bioactive natural products, have been synthesized using this method. A stepwise electrophilic aromatic cyclization mechanism was proposed by DFT calculations. Controlled fusion: A transition-metal-free, low-temperature, and regioselective intramolecular amination of aromatic C(sp2)-H bonds provides fused N-heterocycles. This reaction is operationally simple and scalable (1-10 mmol) and the scope of substrates is wide (see scheme). Density functional calculations indicate that a stepwise electrophilic aromatic cyclization mechanism may be operative.
- Gao, Hongyin,Xu, Qing-Long,Yousufuddin, Muhammed,Ess, Daniel H.,Kuerti, Laszlo
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p. 2701 - 2705
(2014/03/21)
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- NOVEL ORGANIC ELECTROLUMINESCENT COMPOUNDS AND ORGANIC ELECTROLUMINESCENT DEVICE COMPRISING THE SAME
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The present invention relates to a novel organic electroluminescent compound and an organic electroluminescent device comprising the same. The organic electroluminescent compound according to the present invention improves the current property of the device thereby reducing the driving voltage of the device. While organic electroluminescent devices comprising conventional organic electroluminescent compounds need hole blocking layers, the organic electroluminescent device comprising the organic electroluminescent compound of the present invention does not need to comprise a hole blocking layer and has an improved lifespan.
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Paragraph 139; 140
(2015/01/09)
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- Design, synthesis and antifungal activity of carbazole derivatives
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The incidence of invasive fungal infections is increasing rapidly. Clinically available antifungal agents suffer from limited efficacy and severe resistance. There is an urgent need to discover antifungal lead compounds with novel chemical scaffold. On the basis of our previously identified tetrahydrocarbazole antifungal leads, the structure-activity relationship was further explored by modifying the scaffold and the side chains. Several targeted compounds showed potent activity against Candida species. Particularly, compound 13i showed better antifungal activity than the lead compound, which can be used as a good starting point for further optimization.
- Zhu, Shi-Ping,Wang, Wen-Ya,Fang, Kun,Li, Zheng-Gang,Dong, Guo-Qiang,Miao, Zhen-Yuan,Yao, Jian-Zhong,Zhang, Wan-Nian,Sheng, Chun-Quan
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p. 229 - 233
(2014/02/14)
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- NOVEL ORGANIC ELECTROLUMINESCENCE COMPOUNDS AND ORGANIC ELECTROLUMINESCENCE DEVICE COMPRISING THE SAME
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The present invention relates to novel organic electroluminescence compounds and an organic electroluminescence device comprising the same. The organic electroluminescence compound according to the present invention has an advantage of manufacturing an OLED device having long operating lifespan due to its high luminous efficiency compared with conventional materials, and having reduced power consumption induced by improved power efficiency.
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Paragraph 152; 155-156
(2013/06/05)
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- One-pot synthesis of carbazoles from cyclohexanones and arylhydrazine hydrochlorides under metal-free conditions
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One-pot synthesis of carbazoles from cyclohexanones and arylhydrazine hydrochlorides is disclosed. Various substituted carbazoles were obtained in moderate to good yields via a sequence of condensation, cyclization and dehydrogenation under metal free conditions using molecular oxygen as an oxidant.
- Xiao, Fuhong,Liao, Yunfeng,Wu, Mingyue,Deng, Guo-Jun
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supporting information
p. 3277 - 3280
(2013/01/16)
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- MATERIAL FOR ORGANIC ELECTRONIC DEVICE, AND ORGANIC ELECTRONIC DEVICE USING THE SAME
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The present invention provides a novel compound that is capable of largely improving a life time, efficiency, electrochemical stability, and thermal stability of an organic electronic device, and an organic electronic device that comprises an organic material layer comprising the compound.
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Page/Page column 40
(2011/06/26)
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- Light-emitting device material and light-emitting device
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A light emitting device material containing a pyrene compound of formula (1) and a light emitting device. In formula (1), R1 to R18 are the same or different and are selected from hydrogen, alkyl, cycloalkyl, heterocyclic, alkenyl, cycloalkenyl, alkynyl, alkoxy, alkylthio, arylether, arylthioether, aryl, heteroaryl, halogen, carbonyl, carboxyl, oxycarbonyl, carbamoyl, amino, phosphine oxide and silyl; adjacent substituents among R1 to R18 may be combined with each other to form a ring; n represents an integer of 1 to 3; X is —O—, —S— or —NR19—; R19 is selected from hydrogen, alkyl, cycloalkyl, heterocyclic, alkenyl, cycloalkenyl, alkynyl, aryl, heteroaryl or amino; R19 may be combined with R11 or R18 to form a ring; Y is a single bond, arylene or heteroarylene; and n substituents among R1 to R10 and any one of R11 to R19 are used for linkage with Y
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- Synthesis of carbazoles by intramolecular arylation of diarylamide anions
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(Chemical Equation Presented) The synthesis of a series of substituted 9H-carbazoles by the photostimulated SRN1 substitution reaction with diarylamines as starting substrate was performed. The diarylamines were obtained by two approaches, the Pd-catalyzed reactions (Buchwald-Hartwig) or Cu-catalyzed reactions of 2-haloanilines with aryl halides, or 2-bromoiodobenzene with anilines, with moderate to very good isolated yields (45-89%). Through an intramolecular C-C bond formation of diarylamines by the SRN1 mechanism, carbazoles were achieved. These reactions proceeded synthetically in very good to excellent yields (81-99%) in liquid ammonia and DMSO. The reaction of N-(2-bromophenyl)-2-phenylbenzenamine gave 1-phenyl-9H-carbazole (38%) and the isomer 9H-tribenz[b,d,f]azepine (58%). By using this methodology, 9Hcarbazoles, substituted 9H-carbazoles, benzocarbazoles, and even 3,3′-bi(9H-carbazole) were obtained by a double SRN1 reaction with benzidine.
- Buden, Maria E.,Vaillard, Victoria A.,Martin, Sandra E.,Rossi, Roberto A.
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experimental part
p. 4490 - 4498
(2009/09/26)
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