- Triphenylene-based host materials for low-voltage, highly efficient red phosphorescent organic light-emitting diodes
-
Triphenylene-based host materials BDBF-TP and BDBT-TP were synthesized for use in red phosphorescent organic lightemitting diodes (PHOLEDs). The currentvoltage characteristics of hole- and electron-only devices revealed that BDBT-TP exhibits better bipolar carrier transport properties than 4,4'- bis(carbazol-9-yl)-1,1'-biphenyl and BDBF-TP. Red PHOLEDs containing BDBF-TP or BDBT-TP as the host showed a lower driving voltage, higher external quantum efficiency, and lower efficiency roll-off at high current density.
- Togashi, Kazunori,Yasuda, Takuma,Adachi, Chihaya
-
-
Read Online
- Synthesis of Dibenzofurans by Cu-Catalyzed Deborylative Ring Contraction of Dibenzoxaborins
-
An efficient transformation of dibenzoxaborins to dibenzofurans by deborylative ring contraction was achieved under mild conditions using a copper catalyst. The method showed a broad substrate scope enabling the preparation of various dibenzofurans, including those bearing a functional group. The ready availability of various dibenzoxaborins enhances the utility of this method, as demonstrated by the regiodivergent synthesis of dibenzofurans.
- Sumida, Yuto,Harada, Ryu,Sumida, Tomoe,Johmoto, Kohei,Uekusa, Hidehiro,Hosoya, Takamitsu
-
p. 6687 - 6691
(2020/09/02)
-
- COMPOUND FOR ORGANIC ELECTRIC ELEMENT, ORGANIC ELECTRIC ELEMENT COMPRISING THE SAME AND ELECTRONIC DEVICE THEREOF
-
The present invention relates to: a compound for an organic electric element; the organic electric element using the same; and an electronic device thereof. According to the present invention, it is possible to achieve high luminous efficiency, low driving voltage, and high heat resistance of an element, and to improve color purity and lifespan of the element. By using the compound according to the present invention, it is possible to achieve high luminous efficiency, low driving voltage, and high heat resistance of the element, and to provide an effect of improving color purity and lifespan of the element.(110) Substrate(120) Positive electrode(130) Hole injection layer(140) Hole transfer layer(141) Buffer layer(150) Light emitting layer(151) Light emitting auxiliary layer(160) Electron transfer layer(170) Electron injection layer(180) Negative electrodeCOPYRIGHT KIPO 2020
- -
-
Paragraph 0263-0267; 0288-0289; 0291
(2020/04/30)
-
- Nitrogen-containing compound, electronic element and electronic device
-
The invention provides a nitrogen-containing compound, an electronic component and an electronic device, and relates to the technical field of organic materials, wherein the nitrogen-containing compound is represented by a formula I, X is selected from oxygen and sulfur, R is selected from heterocycloalkyl and heteroaryl, L is selected from a single bond, arylene and heteroarylene, the substituentof R is selected from deuterium, nitro, hydroxyl, alkyl, cycloalkyl, alkenyl, alkynyl, aryl, heteroaryl, heterocycloalkyl, alkoxy, aryl silyl and alkyl silyl, and the substituent of L is selected from deuterium, nitro, hydroxyl, alkyl, cycloalkyl, alkenyl, alkynyl, heterocycloalkyl, alkoxy, alkylsilyl, arylsilyl, aryloxy and arylthio. The nitrogen-containing compound disclosed by the invention can reduce the working voltage of an electronic component, improve the efficiency of a device and prolong the service life of the device.
- -
-
Paragraph 0078; 0079
(2020/05/01)
-
- Method for preparing 2-bromodibenzofuran in environmental protection way
-
The invention discloses a method for preparing 2-bromodibenzofuran in an environmental protection way. The method comprises the steps of adding hydrogen peroxide into a mixing system formed by a dichloroethane solution of dibenzofuran and a water solution of hydrobromic acid, stirring for reaction to obtain the 2-bromodibenzofuran. Compared with an existing preparation method of the 2-bromodibenzofuran, according to the method provided by the invention, bromine can be fully utilized, so that the waste of the bromine and the production of a large number of acid waste liquid are avoided, the environment pollution is reduced, and the method is simple in operation and low in cost.
- -
-
Paragraph 0027-0030
(2019/04/02)
-
- Compound containing aza-5-membered ring and application thereof in organic electroluminescent devices
-
The invention discloses a compound containing an aza-5-membered ring and an application thereof in organic electroluminescent devices. The compound is composed of the aza-5-membered ring, has deep HOMO energy level and high hole mobility rate, and is suitable for electronic barrier materials. In addition, the compound has strong group rigidity, has molecules difficult to crystallize and gather, and has good film-forming property. After the compound as an organic electroluminescent functional layer material is applied in OLED devices, the current efficiency, power efficiency and external quantum efficiency of the devices are greatly improved, and the lifetime of the devices is significantly prolonged.
- -
-
Paragraph 0058; 0060; 0061; 0074; 0075
(2019/12/25)
-
- Ni-Catalyzed Reductive Cyanation of Aryl Halides and Phenol Derivatives via Transnitrilation
-
Herein, we report a Ni-catalyzed reductive coupling for the synthesis of benzonitriles from aryl (pseudo)halides and an electrophilic cyanating reagent, 2-methyl-2-phenyl malononitrile (MPMN). MPMN is a bench-stable, carbon-bound electrophilic CN reagent that does not release cyanide under the reaction conditions. A variety of medicinally relevant benzonitriles can be made in good yields. Addition of NaBr to the reaction mixture allows for the use of more challenging aryl electrophiles such as aryl chlorides, tosylates, and triflates. Mechanistic investigations suggest that NaBr plays a role in facilitating oxidative addition with these substrates.
- Mills, L. Reginald,Graham, Joshua M.,Patel, Purvish,Rousseaux, Sophie A. L.
-
supporting information
p. 19257 - 19262
(2019/12/02)
-
- 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
- -
-
Paragraph 0075
(2018/07/28)
-
- DIBENZOFURAN AND DIBENZOTHIOPHENE DERIVATIVES AND ORGANIC LIGHT-EMITTING DEVICES CONTAINING THEM
-
A compound of formula (I) wherein Z is a group of formula (II) and Core is selected from groups of formula (IIIa) or (IIIb) wherein X is S or O; R1 is a substituent; n is 0 or a positive integer; Ar1 independently in each occurrence is an arylene group; R2 is a substituent; R3 is a substituent; R4 is an arylene or heteroarylene group; Y is C or Si; a is 1, 2 or 3; b is 0 or a positive integer; and c is 0 or a positive integer. The compound of formula (I) may be used as a host for a light-emitting dopant in an organic light-emitting device.
- -
-
Page/Page column 35; 36; 37
(2017/09/27)
-
- COMPOUND AND ORGANIC ELECTROLUMINESCENT ELEMENT
-
PROBLEM TO BE SOLVED: To provide a novel compound that is high in band gap and T1 energy, has excellent electrical stability/thermal stability, and can be used also for a hole transport layer of an organic EL element, and to provide an organic EL element that comprises a hole transport layer comprising the compound, and has a longer life and high luminous efficiency. SOLUTION: The present invention provides a compound represented by formula (1) [where X1 to X4 each independently represent H, or a specific dibenzofuran; at least one of X1 to X4 is a specific dibenzofuran; R1 to R6 each independently represent H, a substituted/unsubstituted alkyl group or halogen group; Y is a substituted/unsubstituted an aromatic cyclic group]. SELECTED DRAWING: None COPYRIGHT: (C)2017,JPOandINPIT
- -
-
Paragraph 0144
(2017/05/26)
-
- Simple and efficient synthesis of various dibenzofuran carbaldehydes
-
We herein report simple and efficient methods for the synthesis of various formyl derivatives of dibenzofuran. The aldehydes reported are prepared in at most three steps and in yields greater than 60% from commercially available dibenzofuran, with one exception where isomers must be separated. The protocols described involve either formylation of previously functionalized dibenzofuran derivatives or the initial introduction of the formyl group and subsequent further functionalization under standard reaction conditions as described. We have also reported an efficient and simple method for the synthesis of key methoxydibenzofurans in high yield (65% overall for two steps).
- Yempala, Thirumal,Cassels, Bruce K.
-
p. 1909 - 1915
(2016/11/25)
-
- An electroluminescent compound and an electroluminescent device comprising the same
-
The present invention relates to organic light emitting compounds represented by chemical formula 1-1 to chemical formula 1-2. An organic electroluminescent device using the same has excellent light emitting efficiency and can be driven at low voltage, thereby having improved power efficiency and long life characteristics.COPYRIGHT KIPO 2015
- -
-
Paragraph 0555-0561; 0699-0705
(2020/09/12)
-
- HOLE TRANSPORT MATERIAL
-
PROBLEM TO BE SOLVED: To provide a compound large in band gap, excellent in electrical stability and thermal stability and capable of being used for a hole transport material of an organic EL element, and an organic EL element having long life and high luminous efficacy and having a hole transport material containing the compound. SOLUTION: There is provided a compound represented by the formula (1). In the formula (1), R1 to R4 are each independently H, a substituted or unsubstituted alkyl group or a halogen group, R1 to R4 may exist each independently single or plurality, and may be same or different when exist plurality, X1 and X2 are each independently substituted or unsubstituted aromatic cyclic group, Z1 and Z2 are each O or S, and n is an integer of 1 to 8. COPYRIGHT: (C)2016,JPOandINPIT
- -
-
Paragraph 0130-0131
(2018/10/03)
-
- COMPOUND FOR ORGANIC ELECTRONIC ELEMENT, ORGANIC ELECTRONIC ELEMENT USING THE SAME, AND AN ELECTRONIC DEVICE THEREOF
-
In the present invention, provided is a compound represented by chemical formula 1. In addition, provided is an organic electric device comprising: a first electrode; a second electrode; and an organic material layer between the first electrode and the second electrode, wherein the organic material layer comprises a compound represented by chemical formula 1. If the compound represented by chemical formula 1 is included in the organic material layer of the organic electric device, driving voltage is reduced and light emitting efficiency, color purity and lifespan can be improved.(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 0126-0129
(2016/10/07)
-
- AROMATIC AMINE DERIVATIVE, AND ORGANIC ELECTROLUMINESCENT ELEMENT USING SAME
-
An aromatic amine derivative represented by formula (1): wherein R1, R2, R3, L, Ar1, Ar2, k, m, and n are the same as defined in the specification, is useful as a material for an organic EL device and realizes an organic EL device with a high efficiency and a long lifetime even when driving it at a low voltage.
- -
-
Paragraph 0112-0113
(2015/07/15)
-
- AROMATIC AMINE DERIVATIVE, AND ORGANIC ELECTROLUMINESCENT ELEMENT USING SAME
-
An aromatic amine derivative represented by formula (1): wherein HAr1, Ar2, L1, L2, and L3 are as defined in the specification, is useful as a material for constituting an organic EL device and realizes an organic EL device having a high efficiency and a long lifetime even when driving at a low voltage.
- -
-
Paragraph 0111
(2015/07/15)
-
- COMPOUND FOR ORGANIC OPTOELECTRONIC DEVICE, ORGANIC LIGHT EMITTING DIODE INCLUDING THE SAME AND DISPLAY INCLUDING THE ORGANIC LIGHT EMITTING DIODE
-
Compound for organic optoelectronic devices, including organic luminous person element and same said device relates to display including organic light emitting device, an organic optoelectronic device represented by formula 1 a provided is a compound for the, excellent electrochemical and thermal stability and and excellent life characteristics, low, even under a low drive voltage optoelectronic devices additive is soluble in the organic monomer a high luminous efficiency can be produced. [Formula 1] Specification the present definition of said formula 1 is described.
- -
-
Paragraph 0832-0836
(2016/10/10)
-
- Compound For Organic Optoelectronic Device, Organic Light Emitting Diode Including The Same and Display Including The Organic Light Emitting Diode
-
Compound for organic optoelectronic devices, including organic luminous person element and same said device relates to display including organic light emitting device, an organic optoelectronic device represented by formula 1 a provided is a compound for the, excellent electrochemical and thermal stability and and excellent life characteristics, low, even under a low drive voltage optoelectronic devices additive is soluble in the organic monomer a high luminous efficiency can be produced. [Formula 1] Specification the present definition of said formula 1 is described.
- -
-
Paragraph 0839-0843
(2016/11/24)
-
- NOVEL COMPOUND, MATERIAL FOR ORGANIC ELECTROLUMINESCENCE DEVICE, AND ORGANIC ELECTROLUMINESCENCE DEVICE
-
A specific material for organic electroluminescence device having m-phenylene skeleton in its molecule realizes a highly heat-resistant and long lifetime organic electroluminescence device capable of driving at low voltage with high efficiency.
- -
-
Paragraph 0179; 0180; 0181
(2014/04/04)
-
- FUSED HETEROCYCLIC AROMATIC DERIVATIVE, ORGANIC ELECTROLUMINESCENCE ELEMENT MATERIAL, AND ORGANIC ELECTROLUMINESCENCE ELEMENT USING SAME
-
A compound represented by the following formula (1). In the formula, A1 is O, S, Si(Ar1)(Ar2), P(=O)(Ar3)(Ar4), a substituted or unsubstituted arylene group including 6 to 30 ring carbon atoms, or a substituted or unsubstituted heteroarylene group including 5 to 30 ring atoms.
- -
-
Paragraph 0187-0188
(2014/08/06)
-
- NITROGENATED AROMATIC HETEROCYCLIC DERIVATIVE, AND ORGANIC ELECTROLUMINESCENT ELEMENT USING SAME
-
A nitrogen-containing aromatic heterocyclic derivative in which a nitrogen atom of an indenocarbazole skeleton optionally having a hetero atom or an indenoindole skeleton optionally having a hetero atom is bonded to a dibenzofuran or a dibenzothiophene directly or indirectly. The derivative realizes an organic EL device with a high emission efficiency and a long lifetime.
- -
-
Paragraph 0155
(2014/06/24)
-
- AROMATIC AMINE DERIVATIVE AND ORGANIC ELECTROLUMINESCENCE ELEMENT USING SAME
-
An aromatic amine derivative represented by formula (1): wherein L1, L2, Ar1, Ar2, R1, R2, a, b, and Q are as defined in the specification. An organic electroluminescence device having at least one organic thin film layer which includes the aromatic amine derivative has high emission efficiency and long lifetime.
- -
-
Paragraph 0186
(2014/08/19)
-
- Rhodium-catalyzed decarbonylative C-H arylation of 2-aryloxybenzoic acids leading to dibenzofuran derivatives
-
Rhodium-catalyzed intramolecular C-H arylation of 2-aryloxybenzoic acids proceeded accompanied by decarbonylation to give dibenzofuran derivatives in high yields. The present reaction is widely applicable to substrates bearing various functionalities.
- Maetani, Shinji,Fukuyama, Takahide,Ryu, Ilhyong
-
supporting information
p. 2754 - 2757
(2013/07/19)
-
- NITROGEN-CONTAINING AROMATIC HETEROCYCLIC DERIVATIVE AND ORGANIC ELECTROLUMINESCENCE DEVICE USING SAME
-
A nitrogen-containing aromatic heterocyclic derivative represented by the following formula, wherein X1 to X3 are a single bond, CRaRb, NRc, an oxygen atom or a sulfur atom, and when all of X1 to X3 is a single bond, at least one of Ara, Arb and Arc is an aryl group having 6 to 20 ring carbon atoms substituted with a heteroaryl group, an aryloxy group or a heteroaryloxy group, or a substituted or unsubstituted heteroaryl group having 5 to 20 ring atoms.
- -
-
Paragraph 0160
(2013/07/31)
-
- Organometallic Complex, and Light-Emitting Element and Display Device Using the Organometallic Complex
-
An object is to provide a novel organometallic complex capable of phosphorescence and having high heat resistance. Alternatively, an object is to provide a light-emitting device with high added value. The objects are achieved by providing an organometallic complex which has a structure represented by a general formula (G1) or (G2) below and is formed in such a way that a corresponding one of pyrazine derivatives represented by general formulae (G0) and (G0′) below is ortho-metalated by a Group 9 or Group 10 metal ion, or by providing a light-emitting element and a light-emitting device including the organometallic complex.
- -
-
-
- AROMATIC AMINE DERIVATIVES AND ORGANIC ELECTROLUMINESCENT ELEMENTS USING SAME
-
Provided are an organic EL device material capable of reducing the driving voltage of an organic EL device and increasing the lifetime of the device as compared with a conventional organic EL device material, specifically an aromatic amine derivative represented by N(Ara)(Arb)(Arc), and an organic EL device using the material. [Ara is represented by the formula (II). (In the formula (II): La represents a single bond or an arylene group; R1 to R4 each represent an alkyl group, an aryl group, or the like, and R3's or R4's, or R3 and R4 may be bonded to each other to form a ring; and o represents 0 to 3 and p represents 0 to 4.) Arb is represented by the formula (III). (in the formula (III), X represents NRa, O, or S, and Ra and R5 to R7 each represent an alkyl group, an aryl group, or the like, and R5's, R6's, or R7's adjacent to each other, or R5 and R6 may be bonded to each other to form a ring; n represents 2 to 4 when X represents NRa, and represents 0 to 4 when X represents O or S; and q represents 0 to 3, r and s each independently represent 0 to 4.) Arc represents an aryl group, or is represented by the formula (III).]
- -
-
Page/Page column 120
(2012/07/03)
-
- AROMATIC AMINE DERIVATIVE, AND ORGANIC ELECTROLUMINESCENT ELEMENT
-
Provided are: an aromatic amine derivative including a substituent A and a substituent B each represented by the formula (1) or (2) and having an arylene group bound to a carbazole structure, in which the substituent A and the substituent B include groups different from each other in the position at which the arylene group is bonded to the carbazole structure, and the substituent A and the substituent B are bonded to the same nitrogen atom or different nitrogen atoms in the molecule; an organic electroluminescent device including an organic thin-film layer formed of one or more layers including at least a light emitting layer, the organic thin-film layer being interposed between a cathode and a anode, in which at least one layer of the organic thin-film layer contains the aromatic amine derivative, and the molecules are rarely crystallized, the yield upon production of the organic electroluminescent device is improved, the driving voltage for the organic electroluminescent device is low, and the lifetime of the organic electroluminescent device is long; and an aromatic amine derivative which can realize the organic electroluminescent device. (In the formulae, each substituent is as described in claim 1.)
- -
-
Page/Page column 65
(2012/08/14)
-
- FLUORANTHENE COMPOUND AND ORGANIC ELECTROLUMINESCENT ELEMENT USING SAME
-
A fluoranthene compound represented by the formula (1): wherein Z7 and Z12 are each aryl or heteroaryl; Ar0 is a single bond, aryl, or heteroaryl; R1 to R4 and R6 to R9 are each independently a hydrogen atom, alkyl, cycloalkyl, aryl, heteroaryl, or the like; and I is an integer of 1 to 4.
- -
-
Page/Page column 25-26
(2012/09/21)
-
- AROMATIC AMINE DERIVATIVE, AND ORGANIC ELECTROLUMINESCENT ELEMENT COMPRISING SAME
-
Provided is an aromatic amine derivative represented by the formula N(ArA) (ArB) (ArC) as an organic EL device material capable of reducing the driving voltage of an organic EL device, and improving its luminous efficiency and device lifetime. ArA represents the formula (II-1) or (II-2). La represents an arylene group or the like, Ara represents an aryl group or the like, and n represents 2 or 3. ArB represents the formula (III). Lb represents a single bond or the like, R1 and R2 each represent an alkyl group or the like, o and p each represent 0 to 3 or the like, X represents an oxygen atom or the like, and R3, R4 and R5 each represent an alkyl group or the like. Arc represents an aryl group, a heteroaryl group, or the formula (II-1), (II-2), or (III).
- -
-
Page/Page column 41
(2012/10/18)
-
- AROMATIC HETEROCYCLIC DERIVATIVE AND ORGANIC ELECTROLUMINESCENCE DEVICE USING THE SAME
-
An aromatic heterocyclic derivative represented by the following formula (1), a material for an organic electroluminescence device and an organic electroluminescence device including these:
- -
-
Page/Page column 71-72
(2012/11/08)
-
- AROMATIC AMINE DERIVATIVE, AND ORGANIC ELECTROLUMINESCENT ELEMENT COMPRISING SAME
-
Provided are: an aromatic amine derivative having a terminal substituent selected from a dibenzofuran, a dibenzothiophene, a substituted carbazole, and a substituted fluorene bound to the central skeleton having a specific structure through a nitrogen atom; an organic electroluminescence device, including an organic thin-film layer formed of one or more layers including at least a light emitting layer, the organic thin-film layer being interposed between a cathode and an anode, in which at least one layer of the organic thin-film layer contains the aromatic amine derivative alone or as a component of a mixture, the organic electroluminescence device having a long lifetime and high luminous efficiency; and an aromatic amine derivative for realizing the device.
- -
-
Page/Page column 88
(2012/12/13)
-
- Synthesis of dibenzofurans by palladium-catalysed tandem denitrification/C-H activation
-
A palladium-catalysed method for intramolecular cyclisation of ortho-diazonium salts of diaryl ethers to give dibenzofurans is described. The protocol uses 3 mol% palladium acetate as the catalyst in refluxing ethanol in the absence of base. Georg Thieme Verlag Stuttgart · New York.
- Du, Zhenting,Zhou, Jing,Si, Changmei,Ma, Weili
-
scheme or table
p. 3023 - 3025
(2012/01/05)
-
- AROMATIC AMINE DERIVATIVE AND ORGANIC ELECTROLUMINESCENT DEVICE USING THE SAME
-
An aromatic amine derivative having a specific structure. An organic electroluminescence device which is composed of one or more organic thin film layers sandwiched between a cathode and an anode, wherein at least one of the organic thin film layers especially a hole transporting layer, contains the aromatic amine derivative. The aromatic amine derivative has at least one substituted or unsubstituted dibenzofuran skeleton and at least one substituted or unsubstituted terphenylene skeleton. Because the molecules in the aromatic amine derivative hardly crystallize, organic electroluminescence devices improving their production yield and having prolonged lifetime are provided.
- -
-
Page/Page column 48
(2011/04/18)
-
- AROMATIC AMINE DERIVATIVE, AND ORGANIC ELECTROLUMINESCENT ELEMENT
-
Provided are an organic electroluminescence device that not only provides high efficiency but also has a long lifetime, and an aromatic amine derivative that realizes the device. The organic electroluminescence device includes an aromatic amine derivative, including at least one substituent A having dibenzofuran and at least one substituent B selected from groups each having dibenzofuran or carbazole, in a molecule thereof, in which the substituent A and the substituent B include groups different from each other, and the substituent A and the substituent B are bonded to the same nitrogen atom, or different nitrogen atoms, in the molecule. The molecules of the aromatic amine derivative hardly crystallize, which improves a yield in the production of the organic electroluminescence device. In the organic electroluminescence device, including an organic thin film layer formed of one or more layers including at least a light emitting layer, the organic thin film layer being interposed between a cathode and an anode, the aromatic amine derivative is contained in at least one layer, particularly a hole transport layer, in the organic thin film layer.
- -
-
Page/Page column 71; 90
(2011/10/04)
-
- AROMATIC AMINE DERIVATIVE AND ORGANIC ELECTROLUMINESCENT ELEMENT
-
Provided are a long-lifetime organic electroluminescence device which can be fabricated in an improved yield owing to suppressed crystallization of molecules, and an aromatic amine derivative that realizes the device, i.e. , a novel aromatic amine derivative having a specific structure. Specifically provided are an organic electroluminescence device, including an organic thin film layer formed of one or more layers including at least a light emitting layer, the organic thin film layer being interposed between a cathode and an anode, and an aromatic amine derivative for at least one layer of the organic thin film layer, in particular, a hole transporting layer, the derivative having at least one such structure that a substituent in which two or more specific heterocycles are linked to each other, in particular, a substituent in which two or more specific heterocycles are linked through an aryl group is bonded to an amine through an aryl group.
- -
-
Page/Page column 26; 37
(2012/01/11)
-
- Hybrid Host Materials For Electrophosphorescent Devices
-
Compounds (including polymers) for use in hybrid host materials which can be used in electroluminescent devices. The compounds comprise at least one electron-transporting moiety and at least one hole-transporting moiety which are joined by a flexible linker. Hybrid host materials comprising the compounds exhibit stability against phase separation, elevated glass transition temperature, morphological stability against crystallization, and isolation of the electron transporting moiety and hole transporting moiety π-systems.
- -
-
-
- ANTHRACENE DERIVATIVE AND ORGANIC ELECTROLUMINESCENT DEVICE USING THE SAME
-
Provided are a novel anthracene derivative of a specific structure in which benzofuran or benzothiophene is bonded to anthracene through an arylene group, a material for an organic electroluminescence device and a light emitting material for an organic electroluminescence device each containing the anthracene derivative, and an organic electroluminescence device including an organic thin film layer formed of one or plural layers including at least a light emitting layer, the organic thin film layer being interposed between a cathode and an anode, in which at least one layer of the organic thin film layer contains the anthracene derivative alone or as a component of a mixture. The organic electroluminescence device has high luminous efficiency and is capable of emitting light with a long lifetime, and the device can be realized by the anthracene derivative.
- -
-
Page/Page column 52
(2010/04/24)
-
- AROMATIC AMINE DERIVATIVE AND ORGANIC ELECTROLUMINESCENT DEVICE USING THE SAME
-
Provided are an organic electroluminescent device including an aromatic amine derivative formed of a specific structure having a thiophene structure and an organic thin film layer interposed between a cathode and an anode and formed of one layer or a plurality of layers including at least a light emitting layer, in which at least one layer of the organic thin film contains the aromatic amine derivative alone or as a component of a mixture, the organic electroluminescent device in which molecules hardly crystallize, and which decreases a driving voltage, can be produced with improved yields upon the production of the organic electroluminescent device, and has a long lifetime, and an aromatic amine derivative realizing the organic electroluminescent device.
- -
-
Page/Page column 48
(2010/05/13)
-
- A selective matrix metalloprotease 12 inhibitor for potential treatment of chronic obstructive pulmonary disease (COPD): Discovery of (S)- 2-(8-(Methoxycarbonylamino)dibenzo[b,d]furan- 3-sulfonamido)-3-methylbutanoic acid (MMP408)
-
Matrix metalloprotease 12 plays a significant role in airway inflammation and remodeling. Increased expression and production of MMP-12 have been found in the lung of human COPD patients. MMP408 (14), a potent and selective MMP-12 inhibitor, was derived from a potent matrix metalloprotease 2 and 13 inhibitor via lead optimization and has good physical properties and bioavailability. The compound blocks rhMMP-12-induced lung inflammation in a mouse model and was advanced for further development for the treatment of COPD.
- Wei, Li,Jianchang, Li,Yuchuan, Wu,Junjun, Wu,Hotchandani, Rajeev,Cunningham, Kristina,McFadyen, Iain,Bard, Joel,Morgan, Paul,Schlerman, Franklin,Xin, Xu,Tam, Steve,Goldman, Samuel J.,Williams, Cara,Sypek, Joseph,Mansour, Tarek S.
-
supporting information; experimental part
p. 1799 - 1802
(2009/12/07)
-
- Electroluminescent Device
-
Disclosed are electroluminescent devices that comprise organic layers that contain dibenzofuran compounds. The compounds are suitable components of, for example, blue-emitting, durable, organo-electroluminescent layers. The electroluminescent devices may be employed for full color display panels in, for example, mobile phones, televisions and personal computer screens.
- -
-
Page/Page column 45
(2009/05/28)
-
- TRICYCLIC COMPOUNDS AS MATRIX METALLOPROTEINASE INHIBITORS
-
The present invention relates to compositions of the formula (I): and pharmaceutically acceptable salts, hydrates, or esters thereof, wherein R1, R2, R3, R4, R5, X, and Y are as defined herein. The present teachings also provide methods of making the compounds of formula I, and methods of treating pathologic conditions or disorders mediated wholly or in part by matrix metalloproteinases, such as asthma and chronic obstructive pulmonary disease, comprising administering a therapeutically effective amount of a compound of formula (I) to a mammal (e.g., a human) in need thereof.
- -
-
Page/Page column 123
(2008/12/05)
-
- AROMATIC AMINE DERIVATIVE AND ELECTROLUMINESCENCE DEVICE USING THE SAME
-
Provided are a novel aromatic amine derivative having a specific structure and an organic electroluminescence device in which an organic thin layer comprising a single layer or plural layers including a light emitting layer is interposed between a cathode and an anode, wherein at leas one layer of the above organic thin layer contains the aromatic amine derivative described above in the form of a single component or a mixed component. Thus, the organic electroluminescence device is less liable to be crystallized in molecules, improved in a yield in producing the organic electroluminescence device and extended in a lifetime.
- -
-
-
- A dibenzofuran-based host material for blue electrophosphorescence
-
(Chemical Equation Presented) Dibenzofuran (DBF) is converted to a vacuum-sublimable, electron-transporting host material via 2,8-substitution with diphenylphosphine oxide moieties. Close π-π stacking and the inductive influence of P=O moieties impart favorable electron-transport properties without lowering the triplet energy. A maximum external quantum efficiency of 10.1% and luminance power efficiency of 25.9 lm/W are realized using this material as the host for the blue-green electrophosphorescent molecule, iridium(III) bis(4,6-(di-fluorophenyl)pyridinato-N,C2′)picolinate (Flrpic).
- Vecchi, Paul A.,Padmaperuma, Asanga B.,Qiao, Hong,Sapochak, Linda S.,Burrows, Paul E.
-
p. 4211 - 4214
(2007/10/03)
-
- Synthesis and use of water-soluble sulfonated dibenzofuran-based phosphine ligands
-
The syntheses of three triphenylphosphine analogues with one, two or three phenyl groups replaced by 2-dibenzofuranyl groups, respectively, and one enantiopure analogue of the atropisomeric diphosphine MeO-BIPHEP with all four phenyl groups replaced by 2-dibenzofuranyl are reported. Sulfonation of these compounds with sulfuric acid at rt proceeded with complete regioselectivity at the 8-position in the dibenzofuran moieties. These results proved the usefulness of dibenzofuran as a structural moiety in the synthesis of water-soluble phosphine ligands. The dibenzofuran-based, water- soluble triphenylphosphine analogues were used as ligands in palladium- catalysed aqueous phase Heck and Suzuki reactions and in the rhodium- catalysed two-phase hydroformylation of propene.
- Sollewijn Gelpke, Arjan E.,Veerman, Johan J.N.,Goedheijt, Marcel Schreuder,Kamer, Paul C.J.,Van Leeuwen, Piet W.N.M.,Hiemstra, Henk
-
p. 6657 - 6670
(2007/10/03)
-
- Magnesium Methyl Carbonate-Activated Alkylation of Methyl Ketones with an ω-Halo Nitrile, Esters, and Amides
-
Terminally substituted, extended-chain derivatives of the 2-dibenzofuranyl methyl ketone 6 and its phenylethyl analogue 12 were readily obtained by converting the ketones to magnesium chelates of their β-carboxylated enolates with magnesium methyl carbonate (MMC, methyl methoxymagnesium carbonate, Stiles's reagent), followed by alkylation in situ with ω-halo compounds, X(CH2)n where X = Br and Y = CO2Me, ON, CONMe2, CON(i-Pr)2, CON(CH2)4, or CON(CH2)5 for n = 1; X = Br or I, and Y = CO2Me for n = 2; and X = Br and Y = CO2Me for n = 3. Dimethykarbamoyl chloride (n = 0) gave products derived from MMC and the solvent, N,N-dimethylformamide. The order of reactivity of the halides was α > β > γ and β-I > β-Br. β-Bromo amides were found to be unsuitable reactants. Lower reaction temperatures favored alkylation over competing elimination of HX from methyl β-halopropionate. No self-condensation products of the ketones were observed; however, bis-alkylation and monomethylation products were formed when reaction times were prolonged. In contrast to the unsubstituted β-keto acid 13, all intermediate α-alkyl β-keto acids decarboxylated during the reaction or the workup.
- Hand, Elli S.,Johnson, Stephen C.,Baker, David C.
-
p. 1348 - 1355
(2007/10/03)
-