4496-49-5Relevant academic research and scientific papers
Tert-Butylation of diphenylamine over zeolite catalysts comparison of different alkylation agents and catalysts
Kostrab, Gabriel,Lovi?, Martin,Turan, Andrej,Hudec, Pavol,Kaszonyi, Alexander,Bajus, Martin,Uhlár, Ján,Lehocky, Peter,Mravec, Du?an
, p. 176 - 181 (2012)
tert-Butylation of diphenylamine (DPA) with different tert-butylation agents isobutylene (IB), tert-butanol (TBA), and C4-fraction (C4-IB) in the liquid phase was studied over zeolite catalyst H-BEA (H-BEA CP 814E). This zeolite and acidic clay
(DiMeIHeptCl)Pd: A Low-Load Catalyst for Solvent-Free (Melt) Amination
Semeniuchenko, Volodymyr,Sharif, Sepideh,Day, Jonathan,Chandrasoma, Nalin,Pietro, William J.,Manthorpe, Jeffrey,Braje, Wilfried M.,Organ, Michael G.
, p. 10343 - 10359 (2021/07/31)
(DiMeIHeptCl)Pd, a hyper-branched N-aryl Pd NHC catalyst, has been shown to be efficient at performing amine arylation reactions in solvent-free ("melt") conditions. The highly lipophilic environment of the alkyl chains flanking the Pd center serves as lubricant to allow the complex to navigate through the paste-like environment of these mixtures. The protocol can be used on a multi-gram scale to make a variety of aniline derivatives, including substrates containing alcohol moieties.
Simple generation of various α-monofluoroalkyl radicals by organic photoredox catalysis: modular synthesis of β-monofluoroketones
Taniguchi, Ryo,Noto, Naoki,Tanaka, Seiya,Takahashi, Keigo,Sarkar, Sujan K.,Oyama, Ryoko,Abe, Manabu,Koike, Takashi,Akita, Munetaka
supporting information, p. 2609 - 2612 (2021/03/16)
A metal-free and operationally simple strategy for the generation of various α-monofluoroalkyl radicals has been developed. A combination of 1,4-bis(diarylamino)naphthalene photocatalyst and sulfoximine-based fluoroalkylating reagents is the key to succes
Nitrogen-containing compound, organic electroluminescent device, and electronic device
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Paragraph 0111-0115; 0118, (2021/01/24)
The invention provides a nitrogen-containing compound, an organic electroluminescent device and an electronic device, and belongs to the technical field of organic materials. The structure of the nitrogen-containing compound is represented by Chemical Formula 1: wherein X1, X2, Y1, Y2 are the same or different from each other and are each independently a single bond, O, S, N(R3), C(R4R5), Ge(R6R7), Si(R8R9), Se, wherein X1 and Y1 are not single bonds simultaneously and X2 and Y2 are not single bonds simultaneously.
COMPOUND FOR ORGANIC ELECTRONIC ELEMENT, ORGANIC ELECTRONIC ELEMENT USING THE SAME, AND A ELECTRONIC DEVICE THEREOF
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Paragraph 0103; 0106-0109, (2021/06/22)
In the present invention, provided is a novel compound capable of improving luminance efficiency, stability, and service life of an element, an organic electronic element using the same, and an electronic device thereof. By using the compound of the present invention, high luminance efficiency, low driving voltages, and high heat resistance of the element can be achieved, and color purity and service life of the element can be greatly improved.
Electrochemical Reductive Arylation of Nitroarenes with Arylboronic Acids
Wang, Dan,Wan, Zhaohua,Zhang, Heng,Alhumade, Hesham,Yi, Hong,Lei, Aiwen
, p. 5399 - 5404 (2021/10/20)
The synthesis of diarylamine is extremely important in organic chemistry. Herein, a novel electrochemical reductive arylation of nitroarenes with arylboronic acids was developed. A variety of diarylamines were synthesized without the need for transition-metal catalysts. The reaction could be scaled up efficiently in a flow cell and several derivatization reactions were carried out smoothly. Cyclic voltammetry experiments and mechanism studies showed that acetonitrile, formic acid, and triethyl phosphite all played a role in promoting this reductive arylation transformation.
Nickel-Catalyzed Amination of Aryl Nitriles for Accessing Diarylamines through C?CN Bond Activation
Wu, Ke,Rong, Qiang,Sun, Nan,Hu, Baoxiang,Shen, Zhenlu,Jin, Liqun,Hu, Xinquan
, p. 4708 - 4713 (2021/08/27)
A nickel-catalyzed amination to access diarylamines has been developed through C?CN bond activation of aryl nitriles with anilines. In this developed catalytic protocol, various aromatic and heteroaromatic nitriles could be utilized as the electrophiles to couple with substituted anilines. A diversity of diarylamines were obtained in 15–95% yields. (Figure presented.).
Mediator-Enabled Electrocatalysis with Ligandless Copper for Anaerobic Chan-Lam Coupling Reactions
Walker, Benjamin R.,Manabe, Shuhei,Brusoe, Andrew T.,Sevov, Christo S.
supporting information, p. 6257 - 6265 (2021/05/07)
Simple copper salts serve as catalysts to effect C-X bond-forming reactions in some of the most utilized transformations in synthesis, including the oxidative coupling of aryl boronic acids and amines. However, these Chan-Lam coupling reactions have historically relied on chemical oxidants that limit their applicability beyond small-scale synthesis. Despite the success of replacing strong chemical oxidants with electrochemistry for a variety of metal-catalyzed processes, electrooxidative reactions with ligandless copper catalysts are plagued by slow electron-transfer kinetics, irreversible copper plating, and competitive substrate oxidation. Herein, we report the implementation of substoichiometric quantities of redox mediators to address limitations to Cu-catalyzed electrosynthesis. Mechanistic studies reveal that mediators serve multiple roles by (i) rapidly oxidizing low-valent Cu intermediates, (ii) stripping Cu metal from the cathode to regenerate the catalyst and reveal the active Pt surface for proton reduction, and (iii) providing anodic overcharge protection to prevent substrate oxidation. This strategy is applied to Chan-Lam coupling of aryl-, heteroaryl-, and alkylamines with arylboronic acids in the absence of chemical oxidants. Couplings under these electrochemical conditions occur with higher yields and shorter reaction times than conventional reactions in air and provide complementary substrate reactivity.
COMPOUND FOR ORGANIC ELECTRONIC ELEMENT, ORGANIC ELECTRONIC ELEMENT USING THE SAME, AND AN ELECTRONIC DEVICE THEREOF
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Paragraph 0105-0109; 0111; 0112-0113, (2020/06/23)
The present invention provides a novel compound capable of improving light emitting efficiency, stability, and lifespan of an element, an organic electronic element using same, and an electronic device for the same. In one aspect, the present invention provides a compound represented by the following chemical formula 1. The compounds according to the present invention by utilizing a light emitting device of high efficiency, low driving voltage, high heat resistance can be achieved, and the color purity of the device can greatly improve the service life.
COMPOUND FOR ORGANIC ELECTRONIC ELEMENT, ORGANIC ELECTRONIC ELEMENT USING THE SAME, AND A ELECTRONIC DEVICE THEREOF
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Paragraph 0123; 0127-0131, (2020/06/24)
The present invention provides a novel compound capable of improving luminance efficiency, stability, and service life of an element, an organic electronic element using the same, and an electronic device thereof. By using the compound of the present invention, high luminance efficiency, low driving voltage, and high heat resistance of the element can be achieved, and color purity and service life of the element can be greatly improved.
