78943-60-9Relevant academic research and scientific papers
Polycyclic aromatic compound and organic electroluminescent element containing polycyclic aromatic compound
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Paragraph 0088-0092, (2021/06/02)
The invention discloses a polycyclic aromatic compound. The general structural formula of the polycyclic aromatic compound is shown as a formula I in the specification. The invention also discloses an organic electroluminescent element containing the polycyclic aromatic compound, and application of the polycyclic aromatic compound in preparation of the organic electroluminescent element. The organic electroluminescent element is efficient and durable, and has a shorter emission wavelength than conventional compounds, and thus can be better used in an organic electroluminescent device.
Metal-free late-stage C(sp2)-H functionalization of: N -aryl amines with various sodium salts
Mudithanapelli, Chandrashekar,Kim, Mi-Hyun
, p. 450 - 464 (2020/02/03)
Metal-free consecutive C(sp2)-X (X = Cl, Br, S, N) bond formations of N-aryl amines (cyclic, fused, carbamate, and aminium radicals) were achieved under mild conditions using [bis(trifluoroacetoxy)iodo]benzene (PIFA) and simple nonharmful sodium salts. This direct and selective C(sp2)-H functionalization showed excellent functional group compatibility, cost effectiveness, and late-stage applicability for the synthesis of biologically active natural products. Two mechanisms were proposed to explain the ortho- or para-preference, as well as the accelerating effect of CH3NO2
A general and mild Cu-catalytic: N -arylation of iminodibenzyls and iminostilbenes using unactivated aryl halides
Yao, Wubing,Zhang, Bin,Li, Rongrong,Jiang, Huajiang,Chen, Xiaoying,Li, Fang
, p. 49600 - 49604 (2017/11/03)
A ligand-free, highly efficient Cu-catalytic N-arylation of iminodibenzyl and iminostilbene derivatives with a broad scope of unactivated aryl halides under mild conditions has been developed for the first time. Moreover, the first Ni-based catalytic syst
New method for amination reaction of organic light emitting diode material under catalysis of copper
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Paragraph 0019-0022, (2018/04/01)
The invention adopts a copper reagent which is cheap and prone to acquire as a catalyst, participation of ligand is not needed, and a common dimethylsulfoxide is used as the solvent, so that an amination reaction between iminodibenzyl ramification, an org
Novel method for nickel-catalyzed imino dibenzyl derivative amination
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Paragraph 0019-0022, (2018/04/01)
The invention relates to a novel method which can smoothly catalyze an organic light emitting diodes (OLEDs) material unit - imino dibenzyl derivative to undergo amination with iodo- or bromo- arene under mild conditions by using a cheap and easily-obtain
Stereoelectronic control of oxidation potentials of 3,7-bis(diarylamino)phenothiazines
Karimata, Ayumu,Suzuki, Shuichi,Kozaki, Masatoshi,Okada, Keiji
, p. 56144 - 56152 (2017/12/26)
The influence of diarylamino (Ar2N-) substituents on the oxidation potential of 3,7-bis(diarylamino)phenothiazines (Ar2N)2-PTZ (1a-f, a: carbazolyl; b: dihydrodibenzoazepinyl; c: dibenzoazepinyl; d: diphenylamino; e: phenothiazinyl; and f: phenoxazinyl) is investigated, where the Ar2N-substituent sequence a→f is aligned in the increasing order of their electron-donating ability. Interestingly, a different sequence of electron-donating ability for Ar2N-substituents was observed for the oxidation potentials of (Ar2N)2-PTZ: 1a (Eox1 = +0.35 V vs. Fc/Fc+) > 1f (+0.30 V) > 1e (+0.15 V) > 1d (-0.05 V) > 1c (-0.19 V) > 1b (-0.22 V). The observed sequence can be explained by the stereoelectronic effect of the Ar2N-substituents to stabilize (Ar2N)2-PTZ+. Clear-cut examples are observed in the crystal structure of 1c+ and 1e+, for which coplanar conformation is observed between the PTZ+-plane and the planes of the sp2-hybridized nitrogen atoms in Ar2N-substituents through a large conformational change during the oxidation process of (Ar2N)2-PTZ.
Palladium-Catalyzed N-Arylation of Iminodibenzyls and Iminostilbenes with Aryl- and Heteroaryl Halides
Huang, Wenliang,Buchwald, Stephen L.
supporting information, p. 14186 - 14189 (2016/09/23)
Compounds containing the iminodibenzyl and iminostilbene ring systems are prevalent in medicinal targets and functional materials. Herein, we report palladium-catalyzed conditions for the N-arylation of these ring systems. This protocol could be applied to a variety of (hetero)aryl chloride and bromide substrates, including ones, which are sterically hindered or those containing a variety of functional groups. Use of the fourth-generation palladacycle precatalyst gave good to excellent yields by using low palladium-catalyst loadings (0.1 to 1 mol %).
Performance improvement of dye-sensitizing solar cell by semi-rigid triarylamine-based donors
Wang, Chengyou,Li, Jing,Cai, Shengyun,Ning, Zhijun,Zhao, Dongmei,Zhang, Qiong,Su, Jian-Hua
experimental part, p. 40 - 48 (2012/04/04)
Novel organic dyes (IDB and ISB dyes), which contain 5-phenyl-iminodibenzyl (IDB) and 5-phenyl-iminostilbene (ISB) as electron donors and a cyanoacrylic acid moiety as an electron acceptor and an anchoring group, connected with a thiophene as a π-conjugated system, have been synthesized and used as the sensitizers for dye-sensitized solar cells (DSSCs). The photophysical and electrochemical properties of the dyes were investigated by absorption spectrometry, cyclic voltammetry and density functional theory calculations. As demonstrated, the IDB and ISB unit exhibited stronger electron-donating ability and broader absorption spectra when coated onto TiO2. The DSSC based on ISB-2 consisting of ISB unit produced 5.83% of η (Jsc = 13.14 mA cm-2, Voc = 0.64 V, and ff = 0.68) under 100 mW cm -2 simulated AM 1.5 G solar irradiation.
