20441-08-1Relevant academic research and scientific papers
Simple approach to regulate the spectra of novel kinds of polyazomethines containing bulky triphenylamine: Electrochemistry, electrochromism and photophysical responsive to environment
Niu, Haijun,Cai, Jiwei,Wang, Cheng,Bai, Xuduo,Zhao, Ping,Wang, Wen
, p. 158 - 169,12 (2013)
Two series of novel polyazomethines (PAMs) PIa-PIe, PIIa-PIIe were prepared via the direct polycondensation from N,N′-bis(4-aminophenyl)-N,N′- diphenyl-1,4-phenylenediamine, and N,N′-bis(4-aminophenyl)-N,N′- diphenyl-4,4′-biphenyldiamine with various dica
Triphenylamine derivative electrochromic composite material and preparation method thereof
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Paragraph 0044; 0049-0051; 0069; 0074-0076; 0094; 0099-0101, (2020/02/14)
The invention discloses a triphenylamine derivative electrochromic composite material and a preparation method thereof. The preparation method comprises the following steps: preparing 4-nitrotrianiline from diphenylamine, K2CO3 and fluoronitrobenzene, pro
Ferrocene modified triphenylamine derivative electrochromic composite material and preparation method thereof (by machine translation)
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Page/Page column 6; 10; 12; 14, (2020/02/17)
The invention discloses a ferrocene modified triphenylamine derivative compound electrochromism material and a preparation method thereof,and the preparation method 4 - comprises the following steps: firstly, the preparation method of the ferrocene-containing diphenylamine dimer comprises the, following steps: firstly, carrying out an oxidation-reduction 4,4' - reaction with perchloric acid; copper 4,4' - 4,4' - Vilsmerier . (by machine translation)
From aerospace to screen: Multifunctional poly(benzoxazine)s based on different triarylamines for electrochromic, explosive detection and resistance memory devices
Wang, Yan,Niu, Haiying,Lu, Qingyi,Zhang, Wei,Qiao, Xin,Niu, Haijun,Zhang, Yanhong,Wang, Wen
, (2019/09/16)
Four kinds of main-chain benzoxazine polymers (PBZ) containing triarylamine (TAA) units were synthesized by Mannich reaction and characterized by 1H nuclear magnetic resonance (NMR), Fourier transform infrared (FT-IR) techniques, etc. Thermal,
Redox-Active Guanidines in Proton-Coupled Electron-Transfer Reactions: Real Alternatives to Benzoquinones?
Wild, Ute,Hübner, Olaf,Himmel, Hans-J?rg
supporting information, p. 15988 - 15992 (2019/11/13)
Guanidino-functionalized aromatics (GFAs) are readily available, stable organic redox-active compounds. In this work we apply one particular GFA compound, 1,2,4,5-tetrakis(tetramethylguanidino)benzene, in its oxidized form in a variety of oxidation/oxidative coupling reactions to demonstrate the scope of its proton-coupled electron transfer (PCET) reactivity. Addition of an excess of acid boosts its oxidation power, enabling the oxidative coupling of substrates with redox potentials of at least +0.77 V vs. Fc+/Fc. The green recyclability by catalytic re-oxidation with dioxygen is also shown. Finally, a direct comparison indicates that GFAs are real alternatives to toxic halo- or cyano-substituted benzoquinones.
Triphenylamine derivative Schiff base organic fluorescent probe and preparation method thereof
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Paragraph 0012; 0013, (2019/10/02)
The invention provides a triphenylamine derivative Schiff base organic fluorescent probe and a preparation method thereof. The fluorescent probe is obtained through substitution and nitro reduction ofN,N-diphenylbenzidine used as a raw material, and a con
Metal-Free Oxidative C-C Coupling of Arylamines Using a Quinone-Based Organic Oxidant
Maddala, Sudhakar,Mallick, Sudesh,Venkatakrishnan, Parthasarathy
, p. 8958 - 8972 (2017/09/11)
A variety of arylamines are shown to undergo oxidative C-C bond formation using quinone-based chloranil/H+ reagent as the recyclable organic (metal-free) oxidant system to afford benzidines/naphthidines. Arylamines (3°/2°) designed with various substituents were employed to understand the steric as well as electronic preferences of oxidative dimerization, and a mechanism involving amine radical cation has been proposed. The tetraphenylbenzidine derivative obtained via oxidative C-C coupling has been further converted to blue-emissive hole-transporting material via a simple chemical transformation. This study highlights the preparation of novel HTMs in a simple, economic, and efficient manner.
Containing phenyl - 4 - aniline biphenyl di amino-thiophene [...] compound and its preparation and polymer and its preparation method and application
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Paragraph 0128; 0129; 0138, (2018/04/01)
The invention provides a bithiophene pyrrolic compound containing diphenyl-4-phenylamine diphenyl diamine and preparation as well as a polymer and a preparation method and application, and relates to a thienyl pyrrolic compound and a preparation as well a
Trianilino of thiophene-containing conjugated aromatic amide and its preparation method and application
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Paragraph 0065, (2017/01/26)
The invention discloses thiophene-containing triphenylamine conjugated aromatic amide as well as a preparation method and application thereof, relates to an electrochromic material and a preparation method thereof, and solves the problems of complicated s
Cu(II)-mediated generation of triarylamine radical cations and their dimerization. An easy route to tetraarylbenzidines
Sreenath, Kesavapillai,Suneesh, Chettiyam Veettil,Ratheesh Kumar, Venugopal K.,Gopidas, Karical R.
, p. 3245 - 3251 (2008/09/20)
(Chemical Equation Presented) Triphenylamine (TPA) derivatives react with Cu2+ in acetonitrile to give TPA radical cations which undergo dimerization and deprotonation reactions to yield tetraphenylbenzidines (TPB). Synthetic utility of this reaction is demonstrated using several triphenylamine derivatives, and yields in excess of 80% are obtained in most cases. Involvement of the amine radical cations in these reactions was confirmed by ESR and absorption spectroscopic studies. A mechanism consistent with all observations is proposed. This study also revealed a very good correlation between the free energy change for radical cation formation and product yields.
