cas 50548-45-3, 1-bromodibenzo[b,d]furan | Articles data

Articles about 50548-45-3Total 14 be found

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COMPOUND, MATERIAL FOR ORGANIC ELECTROLUMINESCENCE DEVICE, ORGANIC ELECTROLUMINESCENCE DEVICE, AND ELECTRONIC DEVICE
An organic electroluminescence device having an improved performance and a compound represented by formula (1), which is a novel material that enables the organic electroluminescence device: wherein, X, Ar1 to Ar5, R1 to R20, *a, and *b are the same as those defined in the specification.
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(2020/11/27)

COMPOUND, MATERIAL FOR ORGANIC ELECTROLUMINESCENT ELEMENT, ORGANIC ELECTROLUMINESCENT ELEMENT, AND ELECTRONIC DEVICE
A compound represented by formula (1): wherein R1 to R7, R11 to R18, L1 to L3, a to c, n, and Ar are as defined in the description, provides an organic electroluminescence device having an emission efficiency and a device lifetime further improved.
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(2020/12/25)

COMPOSITION FOR ORGANIC ELECTRONIC DEVICES
The present invention relates to a composition which comprises an electron-transporting host and a hole-transporting host, to the use thereof in electronic devices and to electronic devices containing this composition. The electron-transporting host is particularly preferably selected from the class of the triazine-dibenzofuran-carbazole systems or the class of the triazine-dibenzothiophene-carbazole systems. The hole-transporting host is preferably selected from the class of the biscarbazoles.
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Paragraph 0267-0268

(2020/08/05)

A 1 - bromine two benzofuran and its synthesis method
The invention discloses a 1 - bromine two benzofuran and its synthetic method, comprises the following steps: step 1) using [...] bromophenylacetic, trimethyl borate and diisopropyl [...] low temperature produced by the reaction of 2 - bromo - 6 fluorophe
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(2019/07/04)

MATERIALS FOR ORGANIC ELECTROLUMINESCENT DEVICES
The present invention describes amines with dibenzofuran or dibenzothiophene groups in combination with carbazole, especially for use as triplet matrix materials in organic electroluminescent devices. The invention further relates to a process for preparing the compounds of the invention and to electronic devices comprising these compounds.
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Paragraph 0114; 0120

(2019/05/07)

MATERIALS FOR ORGANIC ELECTROLUMINESCENT DEVICES
The present invention describes dibenzofuran compounds substituted by carbazole compounds, especially for use as triplet matrix materials in organic electroluminescent devices. The invention further relates to a process for preparing the compounds of the invention and to electronic devices comprising these.
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Paragraph 0113-0114

(2019/12/25)

NOVEL TRIAZINE COMPOUND, AND ORGANIC ELECTRONIC ELEMENT AND PLANT-GROWING LIGHTING THAT USE THE SAME
PROBLEM TO BE SOLVED: To provide a triazine compound which has a high triplet energy level and excellent heat resistance, and can be used as an organic electronic element material realizing an element with high efficiency, low voltage and a long life. SOLUTION: In the triazine compound, as represented by the general formula [1] in the figure, a triazine backbone moiety is linked to a dibenzofuran or dibenzothiophene backbone moiety via a biphenyl backbone moiety, where X is an oxygen atom or sulfur atom. SELECTED DRAWING: None COPYRIGHT: (C)2018,JPO&INPIT
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(2018/07/28)

Novel compound and organic light emitting device comprising the same
The present invention provides a novel compound and an organic light emitting device using the same. In the compound represented by chemical formula 1, X_1 is O or S; Y_1 to Y_3 are each independently N or CR_3, wherein at least one of Y_1 to Y_3 is N; and L_1 is a bond, substituted or unsubstituted C_(6-60) arylene, or substituted or unsubstituted C_(2-60) heteroarylene containing at least one heteroatom selected from the group consisting of O, N, Si, and S. According to the present invention, the compound can improve efficiency and enhance low driving voltage and/or lifespan characteristics in an organic light emitting device.COPYRIGHT KIPO 2018
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Paragraph 0193-0195; 0217-0219

(2018/07/28)

Novel hetero-cyclic compound and organic light emitting device comprising the same
Provided are a novel hetero-cyclic compound and an organic light emitting device comprising the same. The hetero-cyclic compound is represented by chemical formula 1. The hetero-cyclic compound can be used as a material for an organic material layer of an organic light emitting device, for improving the efficiency, the low driving voltage and/or the lifetime characteristics in the organic light emitting device.COPYRIGHT KIPO 2018
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Paragraph 0150; 0172-0174

(2018/08/30)

MATERIALS FOR ORGANIC ELECTROLUMINESCENT DEVICES
The present invention relates to compounds comprising a heterocyclic group substituted with a fluoranthene group and a particular aromatic or heteroaromatic group. The compounds are suitable for use in electronic devices, in particular organic electroluminescent devices, comprising these compounds. In some embodiments, the compounds are used as matrix materials for phosphorescent or fluorescent emitters as well as a hole- blocking or an electron-transport layer.
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Page/Page column 48

(2017/05/21)

MATERIALS FOR ORGANIC ELECTROLUMINESCENT DEVICES
The present invention describes carbazolyl compounds substituted by electron-deficient heteroaryl groups, especially for use as triplet matrix materials in organic electroluminescent devices. The invention further relates to a process for preparing the compounds of the invention and to electronic devices comprising these.
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Page/Page column 52

(2018/02/15)

MATERIALS FOR ORGANIC LIGHT EMITTING DEVICES
The present invention describes carbazole, dibenzofuran, dibenzothiophene and fluorene derivatives which are substituted by electron-deficient heteroaryl groups, in particular for use as triplet matrix materials in organic electroluminescent devices. The invention furthermore relates to a process for the preparation of the compounds according to the invention and to electronic devices comprising these compounds.
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Paragraph 0242-0244

(2016/10/08)

MATERIALS FOR ORGANIC ELECTROLUMINESCENT DEVICES
The present invention relates to compounds which are suitable for use in electronic devices, and to electronic devices, in particular organic electroluminescent devices, comprising these compounds. The compounds have a a dibenzofuran, dibenzothiophene or a fluorene group substituted in the 1-position, either directly or through a linking group, to a carbon atom of a heteroaromatic group with one or two nitrogen atoms in a bicyclic 6/6 core, or to a carbon or nitrogen atom of a heteroaromatic group with two nitrogen atoms in a bicyclic 5/6 core and is further substituted with a group selected from dibenzofuran, dibenzothiophene, fluorene or carbazole.
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Page/Page column 54; 55

(2016/12/26)

Regioselective haloaromatization of 1,2-bis(ethynyl)benzene via halogen acids and PtCl2. Platinum-catalyzed 6-π electrocyclization of 1,2-bis(1′-haloethenyl)benzene intermediates
Treatment of 1,2-bis(ethynyl)benzene (1) with aqueous HX (X = Br, I) in hot 3-pentanone (100-105 °C, 2 h) afforded 1,2-bis(1′-haloethenyl)benzene species 2-Br and 2-I in 98% and 95% yields, respectively. The hydrochlorination of endiyne 1 failed to proceed at elevated temperature but was implemented efficiently by PtCl2 (5 mol %) in hot 3-pentanone (100 °C, 2 h) to give 1,2-bis(1′-chloroetheny)benzene 2-Cl in 80% yield. In the presence of PtCl2 (5 mol %), these halides 2-Cl, 2-Br, and 2-I were subsequently converted to 1-halonaphthalenes 3-Cl, 3-Br, and 3-I in the mother solution via sequential 6-π electrocyclization and dehalogenation reactions. PtCl2 (5 mol %) also effected direct haloaromatization of endiyne 1 with HX (X = Cl, Br, I) and gave 1-halonaphthalenes 3-Cl, 3-Br, and 3-I in 64-71% yields. This investigation reports the scope and the regioselectivity of haloaromatization of various enediynes catalyzed by PtCl2.
Lo, Ching-Yu,Kumar, Manyam Praveen,Chang, Hsu-Kai,Lush, Shie-Fu,Liu, Rai-Shung
p. 10482 - 10487
(2007/10/03)