- Organic electroluminescent compounds Organic electroluminescent material containing same and and organic electroluminescent device
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The present disclosure relates to an organic electroluminescent compound, an organic electroluminescent material comprising the same, and an organic electroluminescent device. By comprising an organic electroluminescent compound according to the present d
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Paragraph 0211-0214
(2021/10/13)
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- Synthesis and characterization of phenanthrene-substituted fullerene derivatives as electron acceptors for P3HT-based polymer solar cells
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9,10-Bis(bromomethyl)phenanthrene reacted with fullerenes via a Diels-Alder reaction to give phenanthrene-substituted fullerene mono-adducts (PCMA) and bis-adducts (PCBA) as electron acceptors for organic photovoltaic cells (OPVs). The syntheses of the fullerene derivatives were confirmed by 1H 13C NMR spectroscopy and MALDI-TOF mass spectrometry. PCMA and PCBA showed better light absorption in the UV-visible region than PC61BM. Their electrochemical properties were measured using cyclic voltammetry. Accordingly, the lowest unoccupied molecular orbital (LUMO) energy levels of PCMA and PCBA were -3.66 and -3.57 eV, respectively. Photovoltaic cells were fabricated with a ITO/PEDOT:PSS/poly(3-hexylthiophene)( P3HT):acceptor/LiF/Al configuration, where P3HT and PCBA are the electron donors and acceptors, respectively. The polymer solar cell fabricated using the P3HT:PCBA active layer showed a maximum power conversion efficiency of 0.71%.
- Mi, Dongbo,Park, Jong Baek,Xu, Fei,Kim, Hee Un,Kim, Ji-Hoon,Hwang, Do-Hoon
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p. 1647 - 1653
(2014/07/07)
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- Synthesis of linearly and angularly fused indane-based constrained α-amino acid derivatives
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The benzocyclobutene-based α-amino acid derivative, ethyl 5-acetamido-2,4,5,6-tetrahydro-1H-cyclobuta[f]indene-5-carboxylate is synthesized via coupling of a benzocyclobutene-derived dibromide with ethyl isocyanoacetate as the key step, followed by hydrolysis and subsequent acetylation. This methodology is generalized in order to prepare various linearly and angularly fused indane-based α-amino acid derivatives. Georg Thieme Verlag Stuttgart - New York.
- Kotha, Sambasivarao,Krishna, Nimita Gopal,Misra, Shilpi,Khedkar, Priti
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scheme or table
p. 2945 - 2950
(2011/10/19)
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- Pinacol coupling of 2,2-biaryldiketone: An application for the synthesis of enantiopure 3,4-dihydrodibenzo[ c, g ]phenanthrene-3,4-diol derivatives
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Pinacol coupling of 2,2-biaryldiketone gave trans-diol selectively. In the reaction of axially chiral diketones, enantiomerically pure diols were obtained. Various enantiopure 3,4-dihydrodibenzo[c,g]phenanthrene-3,4-diol could be synthesized by the pinaco
- Kitamura, Mitsuru,Shiomi, Kazufumi,Kitahara, Daisuke,Yamamoto, Yasuaki,Okauchi, Tatsuo
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scheme or table
p. 1359 - 1362
(2010/09/04)
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- An efficient one-pot approach to phenanthrene derivatives using a catalyzed tandem Ullmann-pinacol coupling reaction
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In the presence of catalyst (Ph3P)2NiCl2 and reductant Zn, the Ullmann reactions of ortho-halo aryl aldehydes generate biaryl-dialdehydes and zinc halides. Subsequently, ZnX2 can catalyze the intramolecular pinacol coupling reaction of biaryl-dialdehydes to form 9,10-dihydrophenanthrene-9,10-diols. One-pot synthesis of 9-phenanthrols can be achieved using this strategy.
- Lin, Shuang-zheng,You, Tian-pa
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scheme or table
p. 9906 - 9910
(2009/04/03)
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- A novel nickel(0)-catalyzed cascade Ullmann-pinacol coupling: From o-bromobenzaldehyde to trans-9,10-dihydroxy-9,10-dihydrophenanthrene
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Using 5 mol% of (Ph3P)2NiCl2 as a catalyst, Zn powder as a reductant, ortho-carbonyl-substituted aryl halides could be coupled to form trans-9,10-dihydroxy-9,10-dihydrophenanthrenes in a one-pot cascade reaction. Georg Thieme Verlag Stuttgart.
- Lin, Shuang-Zheng,Chen, Qing-An,You, Tian-Pa
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p. 2101 - 2105
(2008/02/09)
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- [(3-dimethylamino)propyl]dimethylaluminum: A convenient reagent for methylation and ethynylation of carbonyl compounds
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At 60-80°C the title compound methylates a variety of mono- and diketones. Aromatic aldehydes undergo simple methylation by the reagent only after initial treatment with an equivalent amount of AlCl3. Upon reaction of Me2Al(CH2)3NMe2 with terminal acetylenes the aluminum complex is converted into a carbonyl-alkynylation reagent.
- Baidossi, Wael,Rosenfeld, Ayelet,Wassermann, Brigit C.,Schutte, Stefan,Schumann, Herbert,Blum, Jochanan
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p. 1127 - 1130
(2007/10/03)
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- ORGANOZINNVERBINDUNGEN XXXII. ZUR PHOTOCHEMISCHEN REAKTION VON KETONEN MIT TETRAMETHYL-1,2-BIS(PHENYLTHIO)DISTANNAN
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The photolytic reductive dimerization of a number of diaryl and aryl alkyl ketones by means of the distannane Me2(PhS)Sn-Sn(SPh)Me2 gives the corresponding 1,3,2-dioxastannolanes which are easily hydrolyzed yielding pinakols.Several diketones react in the same way with C-C coupling.Depending on the type of carbonyl compound, the different mechanism either exclude or compete with one another.One reaction proceeds via a ketyl radical ArRC.-OSn(SPh)Me2 and the bismetalated pinakol giving ultimately the five-membered ring and Me2Sn(SPh)2.However, with fluorinated acetones, a stannylenoid mechanism may be considered, and an organometallic 1,3-dipol RR'C--O-Sn+Me2 is proposed as a shortlived intermediate.
- Fobbe, Helmut,Neumann, Wilhelm P.
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