36305-66-5Relevant academic research and scientific papers
Synthesis and the luminescent study of the iridium complexes containing 2,3-diphenylquinoline derivatives and the new ancillary ligand for OLED
Lee, Hyun-Shin,Ahn, So Youn,Ha, Yunkyoung
, p. 14 - 24 (2009)
We previously reported that Ir(6-F-2,3-dpqx-(OMe)2) 2(acac) (6-F-2,3-dpqx-(OMe)2=6-fluoro-2,3-bis(4- methoxylphenyl)quinoxaline) exhibited photoluminescence(PL) and electroluminescence (EL) emission at 645 and 667nm, respectively. To modulate the emission maxima toward the saturated red chromacity, a new main ligand and its iridium complexes were prepared, and their photophysical properties were investigated. As a main ligand, 6-OMe-2,3-dpqx-(OMe)2 (6-OMe-2,3-dpqx-(OMe)2=6-methoxy-2,3-bis(4-methoxylphenyl) quinoxaline), were designed and synthesized. Acetylacetonate (acac) and pyrazolonates (przls) were also chelated to the iridium center as an ancillary ligand. The resulting complexes prepared herein were Ir(6-OMe-2,3-dpqx-(OMe) 2)2(acac), Ir(6-OMe-2,3-dpqx-(OMe)2) 2(przl1) and Ir(6-OMe-2,3-dpqx-(OMe)2)2(przl2). The photoluminescence (PL) of these complexes were observed around 660nm, and their electroluminescence maxima were observed around 650nm. The PL investigation of the complexes in PMMA (PMMA=poly(methylmetacrylate)) for the polymer solution process revealed that the emission peaks became broader with the range of 600～850nm than those of the complexes only.
NaOH-Mediated Direct Synthesis of Quinoxalines from o-Nitroanilines and Alcohols via a Hydrogen-Transfer Strategy
Wang, Yan-Bing,Shi, Linlin,Zhang, Xiaojie,Fu, Lian-Rong,Hu, Weinan,Zhang, Wenjing,Zhu, Xinju,Hao, Xin-Qi,Song, Mao-Ping
, p. 947 - 958 (2021/01/14)
A NaOH-mediated sustainable synthesis of functionalized quinoxalines is disclosed via redox condensation of o-nitroamines with diols and α-hydroxy ketones. Under optimized conditions, various o-nitroamines and alcohols are well tolerated to generate the desired products in 44-99% yields without transition metals and external redox additives.
Three phenol quinoxaline benzene and benzoxazine monomer and its preparation method
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Paragraph 0022, (2017/12/27)
The invention provides a triphenol quinoxalinyl benzoxazine monomer and a preparation method therefor. According to the invention, 4,4'-dimethoxybenzil and 4-methoxy-o-phenylenediamine are taken as raw materials for synthesizing quinoxaline triphenol, and
Synthesis and evaluation of quinoxaline derivatives as potential influenza NS1A protein inhibitors
You, Lei,Cho, Eun Jeong,Leavitt, John,Ma, Li-Chung,Montelione, Gaetano T.,Anslyn, Eric V.,Krug, Robert M.,Ellington, Andrew,Robertus, Jon D.
supporting information; experimental part, p. 3007 - 3011 (2011/06/24)
A library of quinoxaline derivatives were prepared to target non-structural protein 1 of influenza A (NS1A) as a means to develop anti-influenza drug leads. An in vitro fluorescence polarization assay demonstrated that these compounds disrupted the dsRNA-NS1A interaction to varying extents. Changes of substituent at positions 2, 3 and 6 on the quinoxaline ring led to variance in responses. The most active compounds (35 and 44) had IC50 values in the range of low micromolar concentration without exhibiting significant dsRNA intercalation. Compound 44 was able to inhibit influenza A/Udorn/72 virus growth.
