54095-24-8Relevant academic research and scientific papers
Rodlike 4,6-diamino-1,3,5-triazine derivatives, effect of the core length on mesophase behavior and their application as LE-LCD device
Cao, Yu,Chang, Qing,Cheng, Xiaohong,Liu, Feng,Su, Fawu,Tan, Xiaoping
, (2021/11/16)
Three series of diaminotriazine derivatives with different core length have been synthesized, and the influence of the structural variation as well as the temperature on their mesophase behaviour were systematically investigated. With focus on the formation of CubI/Im3ˉm phase, multiple 2D/3D phases were discovered. Confirmed by polarized optical microscope, small/wide angle X-ray scattering, grazing incident small-angle X-ray scattering as well as molecular dynamics simulation, the results indicate that molecular curvature is critical to self-assembly structures. Moreover, the prerequisite for the formation of the CubI/Im3ˉm phase is intermediate molecular curvature on the surface of the micelle to allow the intercalation of the alkyl chains. Finally, the potentials for such compounds as light-emitting liquid crystal display (LE-LCD) device has been initially demonstrated.
Synthesis of Novel Benzothiophene Derivatives via Cyclization Reactions
Algso, M. A. S.,Hama, A. K.,Kavak, E.,Kivrak, A.
, p. 1272 - 1278 (2020/09/17)
Abstract: The Sonogashira cross coupling reaction of 2-bromo-5-(4-methoxyphenyl)thiophene and 1-ethynyl-2-(methylsulfanyl)benzene gave 2-(4-methoxyphenyl)-5-{[2-(methylsulfanyl)phenyl]ethynyl}thiophene which was subjected to electrophilic cyclization by t
Selective Mechanochemical Monoarylation of Unbiased Dibromoarenes by in Situ Crystallization
Seo, Tamae,Kubota, Koji,Ito, Hajime
supporting information, p. 9884 - 9889 (2020/05/19)
Palladium-catalyzed Suzuki-Miyaura cross-coupling reactions of liquid, unbiased dibromoarenes under mechanochemical conditions selectively afford the monoarylated products. The lower reactivity of the crystalline monoarylated products relative to the liquid starting materials should be attributed predominantly to the low diffusion efficiency of the former in the reaction mixture, which results in a selective monoarylation. The present study sheds light on a novel approach using in situ phase transitions in solids to design selective organic transformations that are difficult to achieve via conventional solution-based synthesis.
Bisthiophene/triazole based 4,6-diamino-1,3,5-triazine triblock polyphiles: Synthesis, self-assembly and metal binding properties
Liu, Chao,Gao, Hongfei,Li, Taihao,Xiao, Yulong,Cheng, Xiaohong
, p. 294 - 302 (2019/05/29)
Two series of 4,6-diamino-1,3,5-triazine triblock polyphiles consisting of an extremely long bisthiophene/triazole based rigid cores, with flexible alkyl chains at one end and a polar 4,6-diamino-1,3,5-triazine at the other end were synthesized. Colh
Effect of Thiophene Spacer Position in Carbazole-Based Dye-Sensitized Solar Cells on Photophysical, Electrochemical and Photovoltaic Properties
Samae, Ruslan,Surawatanawong, Panida,Eiamprasert, Utt,Pramjit, Songyos,Saengdee, Laksana,Tangboriboonrat, Pramuan,Kiatisevi, Supavadee
, p. 3536 - 3549 (2016/07/28)
The synthesis, photophysical and electrochemical properties, and photovoltaic performances in dye-sensitized solar cells (DSSCs) of five new metal-free organic sensitizers with a carbazole moiety as the electron donor are reported. The compounds contain a thiophene at various positions and a cyanoacrylic acid unit as the electron acceptor. The position of the thiophene moiety affected both the photophysical and electrochemical properties, leading to conversion efficiencies of 1.44 to 4.57 % under AM 1.5 solar conditions (100 mW cm–2). The best performance and longest electron lifetime were found when a thiophene was located on both donor and acceptor sites. The DSSC showed a short-circuit current (Jsc) of 8.59 mA/cm2, an open-circuit photovoltage (Voc) of 0.75 V, and a fill factor (FF) of 0.71. The position of the π-conjugated bridges not only affects the absorption spectra and the energy levels of the sensitizers, but also adjusts the electron lifetime.
Development of dual targeting inhibitors against aggregations of amyloid-β and tau protein
Fuse, Shinichiro,Matsumura, Keisuke,Fujita, Yuki,Sugimoto, Hachiro,Takahashi, Takashi
, p. 228 - 234 (2014/08/18)
Aggregations of both amyloid-β (Aβ) and hyper-phosphorylated tau proteins are recognized as key pathological manifestations of Alzheimer's disease (AD). Agents that inhibit both those forms of aggregation show promise as drug candidates. Seventeen oligo h
A bolaamphiphilic sexithiophene with liquid crystalline triangular honeycomb phase
Bu, Wei,Gao, Hongfei,Tan, Xiaoping,Dong, Xing,Cheng, Xiaohong,Prehm, Marko,Tschierske, Carsten
supporting information, p. 1756 - 1758 (2013/03/14)
A new bolaamphiphile comprising a 5,5′′′′′- diphenyl-sexithiophene core with glycerol groups at each end and four lateral decyl chains was synthesized, which self-assembles into a liquid crystalline phase representing a nanoscale honeycomb composed of qua
Liquid crystalline 2-thienyl-4,6-diamino-1,3,5-triazines exhibiting Im3m and Pm3n micellar cubic phases in an inverted sequence
Dai, Heng,Yang, Xueyan,Tan, Xiaoping,Su, Fawu,Cheng, Xiaohong,Liu, Feng,Tschierske, Carsten
supporting information, p. 10617 - 10619 (2013/11/06)
Two micellar cubic phases with different structures were observed for the first time in the order Im3m-Pm3n in a thermotropic phase sequence of 4,6-diaminotriazine terminated rod-like liquid crystals upon increasing alkyl chain length or rising temperatur
Transition between triangular and square tiling patterns in liquid-crystalline honeycombs formed by tetrathiophene-based bolaamphiphiles
Cheng, Xiaohong,Gao, Hongfei,Tan, Xiaoping,Yang, Xueyan,Prehm, Marko,Ebert, Helgard,Tschierske, Carsten
, p. 3317 - 3331 (2013/07/26)
A series of 5,5′′′-diphenyl tetrathiophenes with polar glycerol groups at each end and two lateral flexible chains self-assemble into a series of liquid-crystalline honeycombs, formed by the π-conjugated rods which enclose polygonal prismatic cells filled by the lateral chains. With increasing chain length a discontinuous transition from triangular to square honeycombs takes place. At this transition a periodic honeycomb composed of a mixture of square and triangular cells in a ratio 1:2 was formed at low temperature, whereas at higher temperature a hexagonal columnar phase composed of triangular and randomly distributed rhombic cells, a new kind of cybotactic nematic phase, and also a cybotactic isotropic phase, both composed of square honeycomb fragments, represent the intermediate states. This provides an example of a dynamic self-assembled system where, depending on the molecular mobility, the transition between two periodic structures with different symmetry either leads to an increase of complexity, or to a chaotic regime with reduced order.
17BETA-HYDROXYSTEROID DEHYDROGENASE TYPE 1 INHIBITORS FOR THE TREATMENT OF HORMONE-RELATED DISEASES
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Page/Page column 25, (2011/04/14)
The invention relates to 17beta-hydroxysteroid dehydrogenase type 1 (17betaHSD1) inhibitors, the preparation thereof and the use thereof for the treatment and prophylaxis of hormone-related, especially estrogen-related or androgen-related, diseases.
