- NOVEL COMPOUNDS FOR ORGANIC ELECTRONIC MATERIAL AND ORGANIC ELECTRONIC DEVICE USING THE SAME
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PROBLEM TO BE SOLVED: To provide: novel compounds for organic electronic material which may be included in a hole transport layer, electron transport layer or hole injection layer or may be used as a host or dopant; and an organic electronic element using
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- Novel Compounds for Organic Electronic Material and Organic Electronic Device Using the Same
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The present invention relates to a novel compound for an organic electronic material and an organic electronic device containing the same. The compound for an organic electronic material according to the present invention is indicated as a chemical formul
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- Palladium-Catalyzed Reaction of Haloarenes with Diarylethynes: Synthesis, Structural Analysis, and Properties of Methylene-Bridged Arenes
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Fluorenes and methylene-bridged polyarenes were easily and efficiently synthesized from haloarenes (or aryl triflates) and diarylethynes by a one-pot, two-step procedure. This protocol involves the palladium-catalyzed cycloisomerization and a subsequent base-mediated retro-aldol condensation. A major advantage is that the starting materials need not have ortho functional groups to complete the annulation. The backbone of the designed products was enlarged using dihaloarenes, highly π-conjugated haloarenes, or diarylalkynes. The mechanism of the formation of benzo[a]fluorene was investigated. The bowl-shaped structure of methylene-bridged indenocorannulene was verified by X-ray crystallography. The photophysical and electrochemical properties of the products thus prepared were investigated.
- Lee, Che-Wei,Liu, En-Chih,Wu, Yao-Ting
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p. 10446 - 10456
(2015/11/18)
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- The structure-property relationship study of electron-deficient dihydroindeno[2,1-b]fluorene derivatives for n-type organic field effect transistors
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A bridged syn triphenylene derivative, namely 5,7-dihydroindeno[2,1-b]fluorene, functionalized with dicyanovinylene units (2,1-b)-IF(=C(CN)2)2 has been designed, synthesized and characterized. Its optical and electrochemical properti
- Romain, Maxime,Chevrier, Michèle,Bebiche, Sarah,Mohammed-Brahim, Tayeb,Rault-Berthelot, Jo?lle,Jacques, Emmanuel,Poriel, Cyril
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p. 5742 - 5753
(2015/06/16)
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- Synthesis of methylene-bridge polyarenes through palladium-catalyzed activation of benzylic carbon-hydrogen bond
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In the presence of palladium(II) acetate [Pd(OAc)2] and an N-heterocyclic carbene (NHC) ligand, fluorene derivatives can be generated in good to excellent yields from 2-halo-2′-methylbiaryls through the benzylic C-H bond activation (14 examples; 81-97% yields). The scope and limitations of this protocol have been examined. A wide range of functional groups, such as alkyl, alkoxy, ester, nitrile, and others, is able to tolerate the reaction conditions herein. The cyclization of an isotope-labelled biphenyl gave the corresponding product with a primary kinetic isotope effect (k H/kD=4.8:1), which indicates that the rate-determining step of this reaction is the activation of the benzylic C-H bond. Moreover, indenofluorenes were also accessed in excellent results from terphenyls (3 examples; 91-92% yields). The cascade reaction of 2,6-dichloro-2′- methylbiphenyl with diphenylacetylene produced 8,9-diphenyl-4H-cyclopenta[def] phenanthrene in 60% yield through the activation of an aryl and a benzylic C-H bond. Copyright
- Hsiao, Chien-Chi,Lin, Yi-Kuan,Liu, Chia-Ju,Wu, Tsun-Cheng,Wu, Yao-Ting
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experimental part
p. 3267 - 3274
(2011/02/23)
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- Palladium-catalyzed double cross-coupling reaction of vic-diborylalkenes and -arenes with vic-bromo(bromomethyl)arenes
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Efficient annulation of vic-diborylalkenes and -arenes with vic-bromo(bromomethyl)arenes has been achieved, using Pd(PPh3) 4 as a catalyst in the presence of Cs2CO3 and water in THF at 60°C, giving rise to the c
- Shimizu, Masaki,Tomioka, Yosuke,Nagao, Ikuhiro,Hiyama, Tamejiro
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scheme or table
p. 3147 - 3150
(2010/03/24)
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