Comparative Syntheses of Arylamine Monomer with Styrylpyridyl Photo-Crosslinker of Polyarylamine for OLED Hole-Injection Material
摘要:
A new arylamine monomer with photo-crosslinkable styrylpyridinyl moiety of conjugated polyarylamine for OLED hole injection material was synthesized through two synthetic routes, BOC-amine protection/deprotection and nitro group reduction methods. Both synthetic routes yielded practically pure amine product by standard aqueous workup and crystallization in 61% overall yield from pyridinylvinylphenol 2. Their reaction efficiencies were comparatively studied in views of practicality and reaction scale. Also, the synthetic conditions of key compound of photo-crosslinker, pyridinylvinylphenol 2 was reinvestigated and established for the reproducible and reliable preparation.
Discovery of novel picolinamide-based derivatives as novel VEGFR-2 kinase inhibitors: synthesis,<i>in vitro</i>biological evaluation and molecular docking
作者:Wuji Sun、Shubiao Fang、Hong Yan
DOI:10.1039/c8md00057c
日期:——
Vascular endothelial growth factor receptor-2 (VEGFR-2) plays a crucial role in tumor angiogenesis, and inhibition of the VEGFR-2 signaling pathway has emerged as an attractive target for cancer therapy. In our effort, a novel series of picolinamide-based derivatives were designed and synthesized as potent and effective VEGFR-2inhibitors. All the newly prepared compounds were evaluated in vitro for
Visible-light TiO<sub>2</sub>-catalyzed synthesis of dihydrobenzofurans by oxidative [3 + 2] annulation of phenols with alkenyl phenols
作者:Jingze Wu、Yaning Liu、Marisa C. Kozlowski
DOI:10.1039/d4sc00723a
日期:——
selectively captured by a neutral phenol nucleophile, rendering β-5′ coupling with excellent chemo- and regio-selectivity. The reaction proceeds under benign conditions, using an inexpensive, nontoxic, and recyclable photocatalyst under visible light irradiation with air as the terminal oxidant at room temperature.
Synthesis of New Conjugated Polymers as Hole Injection Layer and Performance of OLED Devices
作者:Tae Wook Yoo、Chul Park、Nguyen Thi Mai、Dong Uk Kim、Lee Soon Park
DOI:10.1080/15421406.2011.600145
日期:2011.11.4
The fluorene-based poly(dioctylfluorene-alt-biphenylamine)s with styrylpyridyl group were synthesized by using Pd-catalyzed polycondensation reaction. These hole injection/transport polymers showed very good solvent resistance after photo-crosslinking which could facilitate the subsequent spin coating of the emitting layer polymer solution. Moreover these polymers could be patterned by using distyrylpyridyl alkyl monomer (DSM) as crosslinking agents. The OLED devices with configuration of ITO/HIL/Alq(3):NPD/LiF/Al in which synthesized polymer was used as hole injection layer (HIL) were fabricated and their performance was compared with the commercially available PEDOT:PSS as HIL layer.
Synthesis and Photolithographic Property of Conjugated Polymers with Polyazomethine Structure
作者:Sang Chul Ryu、Young Chul Jeong、Lee Soon Park
DOI:10.1080/15421400903240803
日期:2009.11.11
Two different polyazomethine-type conjugated polymers, poly(phenoxiazine-3, 3'-dihydroxybensidine)(PZ-DHB) and poly(phenoxiazine-2,4-diamino-6-hydroxypyrimidine)(PZ-DHP) containing phenothiazine moiety and azomethine linkage in the main chain were synthesized by Schiff-base polycondensation reactions. The polymer poly(PZ-DHB) was converted to the photosensitive type, through Mitsunobu reaction by incorporation of a photocrosslinkable group, hydroxyhexyloxystyryl-2-pyridine(2-HHSP) into the polymer side chains. The photosensitive conjugated polymer, poly(PZ-DHB)-PS, exhibited both strong fluorescence emission at 555 nm and good patterning property in the standard photolithographic processes.
Design, synthesis and biological evaluation of pyrimidine-based derivatives as VEGFR-2 tyrosine kinase inhibitors
作者:Wuji Sun、Shengquan Hu、Shubiao Fang、Hong Yan
DOI:10.1016/j.bioorg.2018.04.005
日期:2018.8
of the VEGFR-2 signaling pathway has already become an attractive approach for cancer therapy. In this study, a novel pyrimidine-based derivative 7j was designed as lead compound, and three series of potent VEGFR-2 inhibitors were synthesized and biologicallyevaluated against A549 and HepG2 cell lines. Compounds 7d, 9s and 13n exhibited superior inhibitory activities against A549 cell with IC50 ranged