- Visible-light-driven Cadogan reaction
-
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
-
supporting information
p. 2582 - 2586
(2021/03/09)
-
- ORGANIC COMPOUND AND ORGANIC ELECTROLUMINESCENCE DEVICE USING THE SAME
-
The present invention discloses an organic compound represented by the following formula (1) and an organic electroluminescence device using the organic compound as the phosphorescent host material, the fluorescent host material, or the fluorescent dopant material. The organic compound may increase a current efficiency or half-life of the organic electroluminescence device. The same definition as described in the present invention.
- -
-
Paragraph 0024; 0025
(2020/08/12)
-
- An electroluminescent compound and an electroluminescent device comprising the same
-
The present invention relates to an organic light-emitting compound represented by [Chemical formula 1]. An organic electroluminescent device comprising the organic light-emitting compound in the present invention has excellent power efficiency, light-emitting efficiency, and long life cycle because the present invention can be operated by a lower driving-voltage in comparison with a device comprising conventional phosphorescent host materials. [Chemical formula 1].
- -
-
Paragraph 0266; 0279-0282; 0652; 0661-0664
(2020/09/26)
-
- An electroluminescen compound and an electroluminescent device comprising the same
-
The present invention relates to an organic light-emitting compound represented by chemical formula 1. An organic electroluminescent device comprising the organic light-emitting compound in the present invention has excellent power efficiency, light-emitting efficiency, and long life cycle because the present invention can be operated by a lower driving-voltage in comparison with a device comprising conventional phosphorescent host materials.
- -
-
Paragraph 0270; 0283-0286; 0634; 0651-0654
(2021/02/02)
-
- COMPOUND FOR ORGANIC ELECTRIC ELEMENT AND ORGANIC ELECTRIC DEVICE COMPRISING THE SAME
-
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)
- -
-
Paragraph 0363-0367; 0385-0389
(2020/11/28)
-
- COMPOUND FOR ORGANIC ELECTRONIC ELEMENT, ORGANIC ELECTRONIC ELEMENT USING THE SAME, AND AN ELECTRONIC DEVICE THEREOF
-
The present invention provides: a novel mixture capable of improving luminous efficiency, stability, and lifespan of an element; an organic electronic element which uses the same; and an electronic device thereof. By using the mixture according to the present invention as a phosphorescent host material, it is possible to achieve high luminous efficiency and low driving voltage of the organic electronic element, and also significantly improve a lifespan of the element.(110) Substrate(120) Anode(130) Hole injection layer(140) Hole transport layer(141) Buffer layer(150) Light emitting auxiliary layer(151) Light emitting layer(160) Electron transport layer(170) Electron injection layer(180) CathodeCOPYRIGHT KIPO 2020
- -
-
Paragraph 0525; 0538-0540; 0544; 0545
(2020/05/26)
-
- ORGANIC COMPOSITION, ORGANIC OPTOELECTRONIC DEVICE AND DISPLAY DEVICE」
-
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.
- -
-
Paragraph 0248-0249; 0266-0267
(2020/02/22)
-
- Tetramethylammonium fluoride tetrahydrate-mediated transition metal-free coupling of aryl iodides with unactivated arenes in air
-
Biaryls are important compounds with widespread applications in many fields. Tetramethylammonium fluoride tetrahydrate was found to promote the biaryl coupling of aryl iodides bearing electron-withdrawing substituents with unactivated arenes. The reaction takes place at temperatures between 100 and 150°C and can be applied to a wide range of aromatic and heteroaromatic rings, affording the products in moderate to high yields. The reaction does not require strong bases or expensive additives that are employed in the existing methods and can be conducted in air and moisture without any precautions.
- Nozawa-Kumada, Kanako,Nakamura, Kosuke,Kurosu, Satoshi,Iwakawa, Yuki,Denneval, Charline,Shigeno, Masanori,Kondo, Yoshinori
-
p. 1042 - 1045
(2019/10/02)
-
- CONDENSED CYCLIC COMPOUND AND ORGANIC LIGHT-EMITTING DEVICE INCLUDING THE SAME
-
A condensed cyclic compound having the following structure and an organic light-emitting device including the same are provided: wherein A1 is one of the following:
- -
-
Paragraph 0383-0386
(2018/03/25)
-
- Metal-free deoxygenation and reductive disilylation of nitroarenes by organosilicon reducing reagents
-
A metal-free deoxygenation and reductive disilylation of nitroarenes was achieved using N,N’-bis(trime-thylsilyl)-4,4’-bipyridinylidene (1) under mild and neutral reaction conditions, and a broad functional group tolerance was possible in this reaction. Mono-deoxygenation, giving a synthetically valuable N,O-bis(trimethylsilyl)phe-nylhydroxylamine (7a) as a readily available and safe phenylnitrene source from nitrobenzene, and double-deoxy-genation, giving N,N-bis(trimethylsilyl)anilines 8, were easily controlled by varying the amounts of 1 and reaction temperature as well as adding dibenzothiophene (DBTP). Reaction of 2-arylnitrobenzenes with 1 resulted in the formation of the corresponding carbazoles 14 via in situ-gen-erated phenylnitrene species derived by thermolysis of N,O-bis(trimethylsilyl)phenylhydroxylamines 7, followed by their subsequent intramolecular C H insertion. In addition, the intramolecular N N coupling reaction proceeded in the reduction of 2,2’-dinitrobiphenyl derivatives by 1, giving the corresponding benzo[c]cinnolines.
- Bhattacharjee, Argha,Hosoya, Hiromu,Ikeda, Hideaki,Nishi, Kohei,Tsurugi, Hayato,Mashima, Kazushi
-
supporting information
p. 11278 - 11282
(2018/10/20)
-
- A design strategy of bipolar host materials for more than 30 times extended lifetime in phosphorescent organic light-emitting diodes using benzocarbazole and quinazoline
-
Stable host materials based on benzocarbazole and quinazoline were synthesized to establish a design strategy of bipolar hosts for elongated lifetime in orange phosphorescent organic light-emitting diodes (PHOLEDs). Three host materials with benzocarbazole and quinazoline connected directly or through a phenyl linker were compared in terms of the device lifetime of the orange PHOLEDs. The connection between benzocarbazole and quinazoline through a phenyl linker was an effective way of improving the lifetime of the red PHOLEDs by more than twice and the molecular orbital distribution of the hosts was well correlated with the lifetime of the PHOLEDs. In particular, the lifetime of the PHOLEDs was extended by more than 30 times compared to a conventional PHOLED with a common CBP host.
- Kim, Sung Moo,Yun, Ju Hui,Han, Si Hyun,Lee, Jun Yeob
-
p. 9072 - 9079
(2017/09/23)
-
- COMPOUND, MATERIAL FOR ORGANIC ELECTROLUMINESCENT ELEMENTS, ORGANIC ELECTROLUMINESCENT ELEMENT, AND ELECTRONIC DEVICE
-
A compound is represented by a formula (1) below, in which k is an integer of 0 or more, m is an integer of 1 or more, n is an integer of 2 or more. L is a substituted or unsubstituted aromatic hydrocarbon ring having 6 to 30 ring carbon atoms, CN is a cyano group, and D1 and D2 are each independently represented by one of a formula (2), a formula (3) and formula (3x) below, D1 and D2 being optionally mutually the same or different.
- -
-
Paragraph 0311; 0312
(2016/06/06)
-
- New organic electroluminescent compounds and the use of the compound of the organic electroluminescent device
-
Disclosed are a novel organic electroluminescent compound and an organic electroluminescent device comprising the same. When used as host material of organic electroluminescent material of an OLED device, the disclosed organic electroluminescent compound exhibits high luminous efficiency and excellent life property of the material as compared to conventional host material. Therefore, it can be used to manufacture OLEDs having very good operation life.
- -
-
Paragraph 0062-0064
(2016/10/07)
-
- Novel organic electroluminescent compounds and organic electroluminescent device using the same
-
The present invention relates to a novel organic light emitting compound and an organic electroluminescent device including the same. More specifically, the organic light emitting compound according to the present invention may be selected from the following Chemical Formulae 1 to 5. [With respect to aforementioned Chemical Formulae 1 to 5, X and Y may be independently selected from N(Ar1), O, and S, wherein the Ar1 may be different from each other, and be expressed as Ar1 or Ar2 if the Ar1 is plural; Z1 to Z8 may be independently selected from C(Ar3) and N, wherein the Ar3 may be different from each other, and the Ar3 adjacent to each other may be combined and form a circle.] Since the organic light emitting compound according to the present invention may be used as a host material of organic light emitting materials in an OLED element, the organic light emitting compound may show good luminous efficiency and excellent life property of material, and OLED having very good operation life may be manufactured therefrom.
- -
-
Paragraph 0045-0048
(2018/02/08)
-
- 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 and, more specifically, to an organic luminescent compound selected among chemical formula 1 to chemical formula 5. [In chemical formula 1 to chemical formula 5, X and Y are selected among N(Ar_1), O and S, respectively. Ar_1 is able to differentiate from each other, and when Ar_1 is plural, Ar_1 is indicated as Ar_1 or Ar_2. Z_1 to Z_8 are selected among C(Ar_3) and N, respectively. Ar_3 is able to differentiate from each other, and an adjacent Ar_3 is able to form a circle by mutual combination.] The organic electroluminescent compound according to the present invention exhibits excellent luminance efficiency as compared to an existing host material by being used as a host material of an organic electroluminescent material in an OLED device and has excellent durability of materials, thereby being able to manufacture an OLED in which the driving durability of the device is excellent.
- -
-
Paragraph 0045-0048
(2020/03/03)
-
- A light emitting device for emitting compd. (by machine translation)
-
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)
- -
-
Paragraph 0104; 0131
(2016/10/20)
-
- LIGHT-EMITTING COMPOUNDS FOR LIGHT-EMITTING DEVICES
-
Compounds represented by Formula (1) are disclosed herein. Organic light-emitting elements and an organic light-emitting diode devices comprising these compounds are also disclosed.
- -
-
Paragraph 0140
(2016/10/31)
-
- MULTICYCLIC COMPOUND INCLUDING NITROGEN AND ORGANIC LIGHT EMITTING DEVICE USING THE SAME
-
The present invention relates to a nitrogen-containing polycyclic compound which is represented by chemical formula 1 and can be used as a material in organic layers for organic light-emitting devices. The present invention further relates to an organic l
- -
-
Paragraph 0157 - 0160
(2017/01/31)
-
- COMPOUND FOR ORGANIC ELECTRIC ELEMENT, ORGANIC ELECTRIC ELEMENT COMPRISING THE SAME AND ELECTRONIC DEVICE THEREOF
-
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
- -
-
Paragraph 0129-0131; 0136-0138
(2016/10/08)
-
- Heterocyclic compound and organic light emitting device using same
-
The present invention relates to a heterocyclic compound and an organic light emitting device comprising the same.
- -
-
Paragraph 0475; 0476; 0477; 0478
(2017/09/19)
-
- Condensed-cyclic compound and organic light emitting diode comprising the same
-
Disclosed are a condensed-cyclic compound, and an organic light emitting device comprising the same. The condensed-cyclic compound is represented by chemical formula 1. The organic light emitting device comprising the condensed-cyclic compound has low driving voltage, high efficiency, high luminance, and long lifespan.COPYRIGHT KIPO 2016
- -
-
Paragraph 0367; 0368; 0371; 0372
(2016/10/07)
-
- Bimetallic Cu/Pd Catalysts with Bridging Aminopyrimidinyl Phosphines for Decarboxylative Cross-Coupling Reactions at Moderate Temperature
-
A bimetallic catalyst system is presented that enables the decarboxylative cross-coupling of triflates with carboxylate salts at only 100 °C, which is 70 °C lower than with previous Cu/Pd-based systems. The new protocol allows the coupling of a broad range of aryl triflates with various substituted 2-nitrobenzoates in good to excellent yields. The key feature of the catalyst system is a bidentate P,N-ligand designed to bridge the Pd and Cu centres and thereby facilitating the rate-determining transmetalation step. Mass spectrometry (ESI-MS) studies support the ability of the aminopyrimidinyl phosphine to simultaneously coordinate copper and palladium.
- Hackenberger, Dagmar,Song, Bingrui,Grünberg, Matthias F.,Farsadpour, Saeid,Menges, Fabian,Kelm, Harald,Gro?, Cedric,Wolff, Timm,Niedner-Schatteburg, Gereon,Thiel, Werner R.,Goo?en, Lukas J.
-
p. 3579 - 3588
(2015/11/10)
-
- Synthesis of Biaryls by Decarboxylative Hiyama Coupling
-
A trimetallic palladium/copper/silver system has been developed that allows the decarboxylative Hiyama coupling of ortho-substituted aryl carboxylates with trialkoxyarylsilanes to give the corresponding biaryls. The cross-coupling is catalyzed by a Pd/N-heterocyclic carbene complex with silver carbonate aiding its reoxidation. Copper(II) fluoride acts as decarboxylation catalyst, stoichiometric oxidant, and fluoride source. The scope of the protocol is demonstrated by 22 examples, among them aryl halides suitable for further coupling, and the synthetic utility of the products is illustrated by their conversion into carbazoles and 1H-indazoles.
- Katayev, Dmitry,Exner, Benjamin,Goossen, Lukas J.
-
p. 2028 - 2032
(2015/11/24)
-
- NOVEL ANTHRACENE COMPOUND AND ORGANIC ELECTROLUMINESCENT ELEMENT PREPARED USING THE SAME
-
PROBLEM TO BE SOLVED: To provide a novel anthracene compound and an organic electroluminescent element with high efficiency, prepared using the same. SOLUTION: This invention provides an anthracene compound represented by the formula (1) (where Z is a group having a structure represented by formula (2), and at least one set of adjacent two groups among R11-R18 bind to each other to form a ring structure represented by formula (3). COPYRIGHT: (C)2016,JPOandINPIT
- -
-
Paragraph 0145; 0146
(2018/10/03)
-
- COMPOUND, ORGANIC OPTOELECTRIC DEVICE AND DISPLAY DEVICE
-
The present invention relates to a compound represented by chemical formula I, an organic light emitting diode including the same, and a display device including the organic light emitting diode. Accordingly, the present invention can provide the organic light emitting diode having properties such as high efficiency and long lifetime. In chemical formula I, X^1 to X^10, L^1 to L^3, R^5 to R^7, X, Ar^1, p, and q are the same as defined in the specification.COPYRIGHT KIPO 2015
- -
-
Paragraph 0387-0389
(2016/10/10)
-
- An electroluminescent compound and an electroluminescent device comprising the same
-
The present invention relates to an organic light-emitting compound represented by chemical formula 1, and an organic electroluminescent device comprising the same. According to the present invention, the organic electroluminescent device employing an organic light-emitting compound as a host material in light-emitting layer of a device or a hole transport material of a hole injection layer and a hole transport layer, has more improved light-emitting efficiency and a long lifespan property than a host compound or a hole transport material which is conventionally employed and enables low-voltage drive.COPYRIGHT KIPO 2016
- -
-
Paragraph 0249-0254
(2016/10/10)
-
- Novel organic electroluminescent compounds and organic electroluminescent device using the same
-
The present invention relates to a novel organic light-emitting compound and an organic electroluminescent device including the same. More particularly, the organic light-emitting compound according to the present invention is selected from the following Formulae 1 to 5. [In the above Formulae 1 to 5, X and Y are independently selected from N(Ar1), O and S, Ar1 may be different from each other, when Ar1 is plural, this is represented by Ar1 or Ar2; each of Z1 to Z8 is independently selected from C(Ar3) and N, Ar3 may be different from each other, and adjacent Ar3 may combine together to form a ring.] The organic light-emitting compound according to the present invention is used as a host material in an organic light-emitting material in an OLED device and has better light-emitting efficiency than a common host material and excellent lifetime characteristic. An OLED having good driving lifetime may be manufactured.
- -
-
Paragraph 0045-0048
(2021/05/11)
-
- EMISSIVE MATERIAL FOR ORGANIC EMITTING DIODES
-
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.
- -
-
Paragraph 0070
(2016/06/01)
-
- 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 adopting the same, and more specifically, to an organic electroluminescent compound represented by chemical formula 1 below. In the chemical formula 1, ring A and ring B are independently a monocyclic or polycyclic aromatic ring, a monocyclic or polycyclic heteroaromatic ring, a five- or six-membered heteroaromatic ring fused with an aromatic ring, or a monocyclic or polycyclic aromatic ring fused with a five- or six-membered heteroaromatic ring, where the ring A and ring B cannot both be a monocyclic aromatic ring. The organic electroluminescent compound according to the present invention shows good luminous efficiency, and superior material color purity and lifetime characteristics, thereby enabling manufacture of an OLED device with excellent driving time.COPYRIGHT KIPO 2016
- -
-
Paragraph 0083-0085
(2016/10/10)
-
- High thermal-stability benzocarbazole derivatives as bipolar host materials for phosphorescent organic light-emitting diodes
-
Two novel host materials based on 5- and 9-substituted benzocarbazole have been developed for application in phosphorescent organic light-emitting diodes. Both host materials exhibit excellent thermal stability with high decomposition temperatures of ca.515 °C, while the 9-substituted benzocarbazole derivative exhibits a high glass transition temperature of 181 °C. Additionally, the electroluminescence characteristics of green phosphorescent organic light-emitting diodes made with two new host materials were also evaluated. The devices exhibited an electroluminescent emission peak at 528 nm with CIE coordinates of (0.31, 0.64) and possessed low turn-on voltages of 2.84 V.
- Chen, Yi,Liang, Wenqing,Choi, Wing Hong,Huang, Jinhai,Dong, Qingchen,Zhu, Furong,Su, Jianhua
-
p. 196 - 203
(2015/09/01)
-
- CONDENSED CYCLIC COMPOUND, AND ORGANIC LIGHT EMITTING DEVICE INCLUDING THE SAME
-
Disclosed are a condensed ring compound and an organic light emitting device comprising the condensed ring compound. The organic light emitting device comprises: a first electrode; a second electrode facing the first electrode; and an organic layer interposed between the first electrode and the second electrode, wherein the organic layer comprises the condensed ring compound.COPYRIGHT KIPO 2015
- -
-
Paragraph 1177
(2016/10/08)
-
- COMPOUND FOR ORGANIC ELECTRONIC ELEMENT, ORGANIC ELECTRONIC ELEMENT USING THE SAME, AND AN ELECTRONIC DEVICE THEREOF
-
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
- -
-
Paragraph 0124; 0154-0157
(2016/10/08)
-
- Condensed-cyclic compound and organic light emitting device comprising the same
-
Disclosed are a condensed-ring compound and an organic light emitting device comprising the same. The condensed-ring compound is represented by the chemical formula 1-2 or 1-3. The organic light emitting device comprising the condensed-ring compound can have a low driving voltage, high efficiency, high brightness, and long lifespan.COPYRIGHT KIPO 2016
- -
-
Paragraph 0393; 0394; 0398; 0399; 0400
(2016/10/07)
-
- Synthesis, structures, and optical properties of aza[4]helicenes
-
A series of aza[4]helicenes have been conveniently synthesized in yields of 71-92 % by a one-pot procedure involving the Pictet-Spengler reaction. The structures of the aza[4]helicenes were characterized by 1H and 13C NMR spectroscop
- Zheng, Yuan-Hui,Lu, Hai-Yan,Li, Meng,Chen, Chuan-Feng
-
p. 3059 - 3066
(2013/06/27)
-
- BENZOCARBAZOLE COMPOUNDS AND ELECTROLUMINESCENT DEVICES INVOLVING THEM
-
The present invention relates to novel organic electroluminescence compounds and an organic electroluminescence device containing the same. The compounds according to the present invention have high luminous efficiency and long operation lifetime. Therefore, they can produce an organic electroluminescence device having enhanced power consumption efficiency.
- -
-
Paragraph 143; 144
(2013/03/28)
-
- NOVEL ORGANIC ELECTROLUMINESCENT COMPOUNDS AND AN ORGANIC ELECTROLUMINESCENT DEVICE USING THE SAME
-
The present invention relates to a novel organic electroluminescent compound and an organic electroluminescent device containing the same. The organic electroluminescent compound according to the present invention has an advantage of manufacturing an OLED device having long operating lifespan due to its excellent lifespan characteristics, lower driving voltages, high luminous efficiency, and reduced power consumption induced by improved power efficiency.
- -
-
Paragraph 154; 155
(2013/06/05)
-
- Decarboxylative cross-coupling of mesylates catalyzed by copper/palladium systems with customized imidazolyl phosphine ligands
-
The activation of the inert C-O bonds in mesylates through the use of a new class of imidazolyl phosphines allows the decarboxylative coupling of aryl mesylates as well as polysubstituted alkenyl mesylates. Variation of the ligands leads to two complementary methods providing the corresponding biaryls and polysubstituted olefins in good yields. Copyright
- Song, Bingrui,Knauber, Thomas,Goo?en, Lukas J.
-
p. 2954 - 2958
(2013/04/11)
-
- OXIME ESTER DERIVATIVES OF BENZOCARBAZOLE COMPOUNDS AND THEIR USE AS PHOTOINITIATORS IN PHOTOPOLYMERIZABLE COMPOSITIONS
-
Compounds of the formula (I), wherein R1, R2, R3, R4, R5, R6, R7 and R8 for example independently of each other are hydro- gen, C1-C20alkyl, (II), COR16 or NO2, provided that at least one pair of R1 and R2, R2 and R3, R3 and R4, R5 and R6, R6 and R7, or R7 and R8 is (III); R9, R10, R11 and R12 for example independently of each other are hydrogen, C1-C20alkyl which optionally substituted; or R9, R10, R11, and R12 independently of each other are unsubstituted or substituted phenyl; X is CO or a direct bond; R13 is for example C1-C20alkyl which optionally is substituted, C2-C12alkenyl, C4- C8cycloalkenyl, C2-C12alkinyl, C3-C10cycloalkyl, phenyl or naphthyl both of which are optionally substituted; R14 is for example hydrogen, C3-C8cycloalkyl, C2-C5alkenyl, C1-C20alkoxy, C1-C20alkyl, phenyl or naphthyl; R15 is for example C6-C20aryl or C5-C20heteroaryl; R16 is for example C6-C20aryl which is unsubstituted or substituted by one or more C1-C20alkoxy or C1-C20alkyl; are in particular suitable as photoinitiators for color filter applications.
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-
Page/Page column 101
(2012/04/23)
-
- NOVEL COMPOUNDS FOR ORGANIC ELECTRONIC MATERIAL AND ORGANIC ELECTROLUMINESCENT DEVICE USING THE SAME
-
Provided are novel compounds for organic electronic material and an organic electroluminescent device using the same. Because the compounds for organic electronic material according to the present invention are highly efficient at transporting electrons, crystallization is prevented when manufacturing a device and current properties of the device are improved due to favorably formed layers. Accordingly, OLED devices having improved power efficiency as well as reduced operating voltage can be manufactured.
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-
Page/Page column 14-15
(2012/03/26)
-
- NOVEL COMPOUND FOR ORGANIC ELECTRONIC MATERIAL AND ORGANIC ELECTROLUMINESCENT DEVICE USING THE SAME
-
Provided are a novel compound for an organic electronic material and an organic electroluminescent device using the same. The compound for an organic electronic material according to the present invention has high electron transport efficiency, thereby preventing crystallization at the time manufacturing of a device, and allows a layer to be easily formed, thereby improving current characteristics of the device, and thus an OLED device having a lowered driving voltage and improved power efficiency as well as superior luminous efficiency and lifespan characteristics as compared with the existing material can be manufactured.
- -
-
Page/Page column 36
(2012/06/01)
-
- NOVEL ORGANIC ELECTROLUMINESCENT COMPOUNDS AND ORGANIC ELECTROLUMINESCENT DEVICE USING THE SAME
-
Provided are novel organic electroluminescent compounds and organic electroluminescent devices using the same. Since the organic electroluminescent compound exhibits good luminous efficiency and excellent life property compared to the existing material, it may be used to manufacture OLED devices having superior operation life and consuming less power due to improved power efficiency.
- -
-
Page/Page column 27; 28
(2011/02/24)
-
- Synthesis of biaryls and aryl ketones via microwave-assisted decarboxylative cross-couplings
-
A protocol for the microwave-assisted decarboxylative cross-couplings of carboxylic acid salts with aryl halides has been developed that allows the synthesis of various biaryls and aryl ketones in high yields. After careful adaptation of the bimetallic ca
- Goossen, Lukas J.,Linder, Bettina Zimmermanns Christophe,Rodriguez, Nuria,Lange, Paul P.,Hartung, Jens
-
experimental part
p. 2667 - 2674
(2009/12/31)
-
- Method For Decarboxylating C-C Cross-Linking Of Carboxylic Acids With Carbon Electrophiles
-
The invention relates to a method for decarboxylating C—C bond formation by reacting carboxylic salts with carbon electrophiles in the presence of transition metal compounds as catalysts. The method represents a decarboxylating C—C bond formation of carboxylic acid salts with carbon electrophiles, wherein the catalyst contains two transition metals and/or transition metal compounds, from which one is present, preferably, in the oxidation step, which are different from each other by one unit, and catalyzes a radical decarboxylation which is absorbed during the second oxidation steps, which are different from each other by two units and catalyzes the two electron processes of a C—C bond formation reaction.
- -
-
Page/Page column 4; 6
(2008/12/07)
-
- Biaryl synthesis via Pd-catalyzed decarboxylative coupling of aromatic carboxylates with aryl halides
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A new strategy for the regiospecific construction of unsymmetrical biaryls is presented, in which easily available salts of carboxylic acids are decarboxylated in situ to give arylmetal species that serve as the nucleophilic component in a catalytic cross-coupling reaction with aryl halides. The catalyst system consists of a copper phenanthroline complex that mediates the extrusion of CO2 from aromatic carboxylates to generate arylcopper species, and a palladium complex that catalyzes the cross-coupling of these intermediates with aryl halides. This bimetallic system allows the direct coupling of various aryl, heteroaryl, or vinyl carboxylic acids with aryl or heteroaryl iodides, bromides, or chlorides at 160°C in the presence of a mild base such as potassium carbonate. The present scope and potential economic impact of the reaction are demonstrated by the synthesis of 42 biaryls, some of which are of substantial industrial relevance. Remaining challenges and future perspectives of the new transformation are discussed.
- Goossen, Lukas J.,Rodriguez, Nuria,Melzer, Bettina,Linder, Christophe,Deng, Guojun,Levy, Laura M.
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p. 4824 - 4833
(2008/01/27)
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- Microwave-enhanced cadogan cyclization: An easy access to the 2-substituted carbazoles and other fused heterocyclic systems
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A microwave-enhanced Suzuki-Miyaura cross-coupling reaction in combination with a microwave-assisted Cadogan reductive cyclization is presented as an easy access to a variety of 2-substituted carbazoles and other fused heterocyclic systems. Microwave irradiation was found very useful in minimizing the proto-deboronation issues in the cross-coupling reaction, and enhances the rate of reductive cyclization in a dramatic manner.
- Appukkuttan, Prasad,Van Der Eycken, Erik,Dehaen, Wim
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p. 127 - 133
(2007/10/03)
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- Structure-based design of nonpeptide inhibitors of interleukin-1β converting enzyme (ICE, Caspase-1)
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A novel class of reversible inhibitors of Interleukin-1β-converting enzyme (ICE, caspase-1) were discovered by iterative structure-based design. Guided by the X-ray crystal structure of analogues 1, 7 and 10 bound to ICE, we have designed a non-peptide series of small molecule inhibitors. These compounds incorporate an arylsulfonamide moiety which replaces Val-His unit (P3-P2 residues) amino acids of the native substrate. The synthesis of the core structure, structure-activity relationships (SARs), and proposed binding orientation based on molecular modeling studies for this serie of ICE inhibitors are described. Copyright
- Shahripour, Aurash B,Plummer, Mark S,Lunney, Elizabeth A,Albrecht, Hans P,Hays, Sheryl J,Kostlan, Catherine R,Sawyer, Tomi K,Walker, Nigel P.C,Brady, Kenneth D,Allen, Hamish J,Talanian, Robert V,Wong, Winnie W,Humblet, Christine
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- Preparation of unsymmetrical biaryls via palladium-catalyzed coupling reaction of aryl halides
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The synthesis of unsymmetrical biaryls is achieved using Pd(OAc)2 as the catalyst. A great variety of aryl halides having electron withdrawing and electron donating functional groups in para, meta and ortho positions have been successfully coupled.
- Hassan, Jwanro,Hathroubi, Chokri,Gozzi, Christel,Lemaire, Marc
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p. 7845 - 7855
(2007/10/03)
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