15546-43-7Relevant articles and documents
Towards an understanding of structure-property relationships in holetransport materials: The influence of molecular conformation on oxidation potential in poly(arvl)amines
Low, Paul J.,Paterson, Michael A. J.,Yufit, Dmitry S.,Howard, Judith A. K.,Cherryman, Julian C.,Tackley, Daniel R.,Brook, Robert,Brown, Bev
, p. 2304 - 2315 (2005)
The influence of molecular conformation on the oxidation (ionisation) potential and electronic structure associated with several TPD-style hole transport materials has been assessed through a combination of single crystal X-ray diffraction, electrochemical and spectroelectrochemical methods and DFT calculations. The introduction of methyl groups can be used to tune the ionisation potential of these molecular species through a combination of electronic (inductive) and thermodynamic effects, while the conformation of the biphenyl portion of the molecular framework is found to play the greatest role in determining the Marcus-type reorganisation energy associated with the charge transport process on the molecular level. The Royal Society of Chemistry 2005.
Pulse-electrolysis stopped-flow method for the electrospectroscopic analysis of short-lived intermediates generated in the electrooxidation of triphenylamine
Oyama, Munetaka,Nozaki, Koichi,Okazaki, Satoshi
, p. 1387 - 1392 (1991)
A new analytical method was developed for the electrochemical and spectroscopic analyses of short-lived intermediates generated during electrochemical processes. Manyfaceted conclusions can be drawn from spectroscopic measurements after pulse electrolysis with a column electrode; e.g. dynamic transformation profiles of absorption spectra correspond to the applied potential. The fundamental characteristics of this method are described in detail. Electrolytic efficiency in the carbon-wool column electrode was evaluated in controlled-potential and controlled-current pulse electrolysis of the tetracyanoquinodimethane anion radical (TCNQ*-). In the controlled-potential operation, 0.11 mM TCNQ*-, was electrolyzed quantitatively within 200 ms. Up to 2.2 mM, the controlled-current operation permitted quantitative electrolysis with a 50-ms current pulse. Kinetic analysis of the dimerization reaction of the triphenylamine (TPA) cation radical (TPA*+) was carried out by this method. The pure solution containing only TPA*+ was successfully prepared by pulse electrolysis without any Interference by the consecutive reactions. Therefore the absorption coefficient of TPA*+ was easily determined and the dimerization rate constant of TPA*+ was quite simply analyzed by following the absorbance decay of TPA*+. The effect of the parent molecules on the reaction was also clarified by mixing TPA and TPA*+ solutions.
Oligomerization of aromatic tertiary amines
Sato, Hisaya,Kanegae, Aiko,Yamaguchi, Ryoji,Ogino, Kenji,Kurjata, Jan
, p. 79 - 80 (1999)
The oligomerization of some tertiary aromatic amines was studied using ferric chloride in a variety of solvent. The predominant dimer formation of triphenylamine (TPA) was observed in chloroform at O °C where concentration of TPA was 0.125 mmol/l and the molar ratio of ferric chloride to TPA was 4. Except for N-methyldiphenylamine, high molecular weight oligomers were formed in a variety of solvents.
Catalytic and Aerobic Oxidative Biaryl Coupling of Anilines Using a Recyclable Heterogeneous Catalyst for Synthesis of Benzidines and Bicarbazoles
Matsumoto, Kenji,Toubaru, Yasunori,Tachikawa, Shohei,Miki, Ayaka,Sakai, Kentaro,Koroki, Syota,Hirokane, Tsukasa,Shindo, Mitsuru,Yoshida, Masahiro
supporting information, p. 15154 - 15166 (2020/12/23)
In this study, a heterogeneous rhodium-catalyzed oxidative homocoupling reaction of anilines utilizing molecular oxygen as the sole oxidant is reported. Employing a commercially available and recyclable Rh/C catalyst enabled the oxidative dimerization of various anilines, including N,N-disubstituted and N-monosubstituted anilines, as well as diarylamines, triarylamines, and carbazoles. Additionally, the catalytic protocol was extended to the ortho-ortho coupling of anilines, affording 2,2′-diaminobiphenyls with high regioselectivity. Notably, the developed approach provides rapid access to diversely functionalized benzidines and diaminobiphenyls in an operationally simple, practical, and environmentally friendly manner.
MANUFACTURING METHOD OF AROMATIC AMINE COMPOUND, NOVEL AROMATIC AMINE COMPOUND, FLUORESCENT EMISSION MATERIAL AND ULTRAVIOLET ABSORBER
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Paragraph 0106; 0108; 0109; 0110, (2018/09/26)
PROBLEM TO BE SOLVED: To provide a manufacturing method of an aromatic amine compound by a Buchwald-Hartwig reaction using a novel palladium catalyst, especially a manufacturing method of the aromatic amine compound capable of providing an object compound at high efficiency even with a substrate which does not proceed a reaction favorably in prior art, further a manufacturing method of the aromatic amine compound capable of providing a novel aromatic amine compound having no synthetic example previously, a novel fluorescent emission material and an ultraviolet absorber consisting of a novel aromatic amine compounds, a 5-aminothiazole compound. SOLUTION: The manufacturing method of an aromatic amine compound includes reacting an aromatic halogen compound and an amine compound in the presence of palladium nanoparticles and a base with a phosphine compound as a protectant to obtain the aromatic amine compound. SELECTED DRAWING: None COPYRIGHT: (C)2018,JPOandINPIT