1270030-08-4Relevant academic research and scientific papers
Two bipolar blue-emitting fluorescent materials based on 1,3,5-triazine and peripheral pyrene for organic light-emitting diodes
Li,Xie,Gong,Liu,Chen,Gao,Huang
, p. 43 - 53 (2017)
Two bipolar blue-emitting materials, composed of the electron-withdrawing triphenyl-triazine core and the peripheral electron-donating 1-position substituted and 2-positon substituted pyrene moieties respectively, were designed, synthesized, and fully cha
An Alternative Synthesis of Bipyrenol: A High-Yield Oxidative Coupling Reaction of a Pyrene Derivative with Cu(BF 4) 2 ·nH 2 O
Rajbangshi, Subas,Sugiura, Ken-Ichi
, p. 3145 - 3148 (2017)
An alternative synthesis has been developed with the objective of extending the applications of bipyrenol in mind. The key reaction involves the oxidative coupling of 2-hydroxypyrene menthyl carbonate to afford the corresponding pyrene dimer. In marked contrast to our previous method, i.e., the oxidation of 2-hydroxypyrene, the revised method is a clean and high-yielding reaction. By optimizing the reaction conditions, the yield of the alternative synthesis is increased to 88%.
Singlet Fission in Pyrene-Fused Azaacene Dimers
Mora-Fuentes, Juan P.,Papadopoulos, Ilias,Thiel, Dominik,álvarez-Boto, Roberto,Cortizo-Lacalle, Diego,Clark, Timothy,Melle-Franco, Manuel,Guldi, Dirk M.,Mateo-Alonso, Aurelio
, p. 1113 - 1117 (2019/12/11)
Singlet fission has emerged as a promising strategy to avoid the loss of extra energy through thermalization in solar cells. A family of dimers consisting of nitrogen-doped pyrene-fused acenes that undergo singlet fission with triplet quantum yields as high as 125 % are presented. They provide new perspectives for nitrogenated polycyclic aromatic hydrocarbons and for the design of new materials for singlet fission.
Suzuki Cross-Coupling for Post-Complexation Derivatization of Non-Racemic Bis-Cyclometalated Iridium(III) Complexes
Mietke, Thomas,Cruchter, Thomas,Winterling, Erik,Tripp, Matthias,Harms, Klaus,Meggers, Eric
, p. 12363 - 12371 (2017/09/14)
A straightforward method for post-complexation derivatizations of diastereo- and enantiomerically pure bis-cyclometalated benzoxazole and benzothiazole iridium(III) complexes is reported. Triflate- and bromine-functionalized iridium(III) complex dimers, r
Amino carbazole bridged molecular forceps and its preparation method and application (by machine translation)
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Paragraph 0048-0051, (2017/03/08)
The invention relates to amine-containing diphenylenimine bridged molecular forceps and its preparation method, it has the following formula by the chemical structural formula of that: is wherein Ar fused ring pyrenyl ; n=1-15 ; R 1, R 2 to the carbon number is 1-6 the alkyl chain of the, its preparation method includes the following steps: 1) in order to 3,6-dibromo diphenylenimine as the reaction raw material, under the alkaline condition, with the excess of the amino compound through reaction, to obtain the different amino carbazole b bromine ; 2) to amino carbazole two bromines as raw materials, by palladium-catalyzed coupling reaction into rigid fused ring Pyren unit, to obtain the different target product. The invention has the following advantages and beneficial effects: 1) it is simple to synthesize, low cost, good separation effect, help to large-scale purification of carbon nano-tube. 2) has good alcohol-soluble, can in ethanol, propanol, and the like in the environment-friendly solvent medium separation of carbon nanotubes, has the advantages of environmental protection, the strong characteristic of practicability. (by machine translation)
Synthesis, crystal structure and photophysical properties of pyrene-helicene hybrids
Bedard, Anne-Catherine,Vlassova, Anna,Hernandez-Perez, Augusto C.,Bessette, Andre,Hanan, Garry S.,Heuft, Matthew A.,Collins, Shawn K.
, p. 16295 - 16302 (2013/12/04)
Synthesis of helically chiral aromatics resulting from fusion of pyrene and [4]- or [5]helicene has been accomplished using photoredox catalysis employing a Cu-based sensitizer as the key step. Photocyclisation experiments for the synthesis of the target
Synthesis of 2-and 2,7-functionalized pyrene derivatives: An application of selective C-H borylation
Crawford, Andrew G.,Liu, Zhiqiang,Mkhalid, Ibraheem A. I.,Thibault, Marie-Helene,Schwarz, Nicolle,Alcaraz, Gilles,Steffen, Andreas,Collings, Jonathan C.,Batsanov, Andrei S.,Howard, Judith A. K.,Marder, Todd B.
, p. 5022 - 5035 (2012/05/20)
An efficient synthetic route to 2-and 2,7-substituted pyrenes is described. The regiospecific direct C-H borylation of pyrene with an iridium-based catalyst, prepared in situ by the reaction of [{Ir(μ-OMe)cod}2] (cod=1,5-cyclooctadiene) with 4,4′-di-tert-butyl-2,2′-bipyridine, gives 2,7-bis(Bpin)pyrene (1) and 2-(Bpin)pyrene (2, pin=OCMe 2CMe2O). From 1, by simple derivatization strategies, we synthesized 2,7-bis(R)-pyrenes with R=BF3K (3), Br (4), OH (5), B(OH)2 (6), and OTf (7). Using these nominally nucleophilic and electrophilic derivatives as coupling partners in Suzuki-Miyaura, Sonogashira, and Buchwald-Hartwig cross-coupling reactions, we obtained 2,7-bis(R)-pyrenes with R=(4-CO2C8H17)C6H4 (8), Ph (9), Ca≡CPh (10), Ca≡C[{4-B(Mes)2}C 6H4] (11), Ca≡CTMS (12), Ca≡C[(4-NMe 2)C6H4] (14), Ca≡CH (15), N(Ph)[(4-OMe)C6H4] (16), and R=OTf, R′=Ca≡CTMS (13). Lithiation of 4, followed by reaction with CO2, yielded pyrene-2,7-dicarboxylic acid (17), whilst borylation of 2-tBu-pyrene gave 2-tBu-7-Bpin-pyrene (18) selectively. By similar routes (including Negishi cross-coupling reactions), monosubstituted 2-R-pyrenes with R=BF3K (19), Br (20), OH (21), B(OH)2 (22), [4-B(Mes)2]C 6H4 (23), B(Mes)2 (24), OTf (25), Ca≡CPh (26), Ca≡CTMS (27), (4-CO2Me)C6H4 (28), Ca≡CH (29), C3H6CO2Me (30), OC 3H6CO2Me (31), C3H 6CO2H (32), OC3H6CO2H (33), and O(CH2)12Br (34) were obtained from 2. These derivatives are of synthetic and photophysical interest because they contain donor, acceptor, and conjugated substituents. The crystal structures of compounds 4, 5, 7, 12, 18, 19, 21, 23, 26, and 28-31 have also been obtained from single-crystal X-ray diffraction data, revealing a diversity of packing modes, which are described in the Supporting Information. A detailed discussion of the structures of 1 and 2, their polymorphs, solvates, and co-crystals is reported separately. Copyright
NOVEL PYRENE COMPOUND AND ORGANIC ELECTROLUMINESCENT DEVICE INCLUDING THE SAME
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, (2011/04/18)
A pyrene compound represented by general formula (1): wherein X represents one of a naphthalene ring and a phenanthrene ring; when X represents the naphthalene ring, a 1-pyrenyl group indicated in general formula (1) is bonded to a 2-position of the naphthalene ring; when X represents the phenanthrene ring, the 1-pyrenyl group is bonded to one of a 2-position and a 3-position of the phenanthrene ring; and R1 and R2 are each independently selected from a hydrogen atom and an alkyl group.
