7287-75-4Relevant articles and documents
A green and mild procedure to selective synthesis of diarylamine via domino reaction of aryl halides and arginine catalyzed by magnetic-MOF
Soleiman-Beigi, Mohammad,Mohammadi, Fariba
, (2019/01/03)
Efficient and selective direct synthesis of diarylamines from aryl halides and arginine as a nitrogen-donor reagent is reported. Arginine, which is an oral supplement, acts as a useful nitrogen source donor in the copper-catalyzed reaction. Fe3O4/Cu3(BTC)2, which was easily separated and recycled with a magnet, improved the rate and facilitation of the synthesis of diarylamines selectively. The introduction of a new and available N-source, simple magnetic separation process, normal atmospheric conditions, and excellent yields under mild reaction conditions are other important features of this work.
Pyrene-containing compound, preparation method thereof and organic light-emitting device
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Paragraph 0024; 0025; 0027, (2018/11/22)
The invention provides a pyrene-containing compound which has a structure as shown in formula 1 (FORMULA referring to the description), wherein X1 and X2 are oxygen (O) or sulfur (S); Y1 and Y2 are carbon (C) or nitrogen (N); and L1 is 0 or 1; and R1 and
Formal arylation of NH3 to produce diphenylamines over supported Pd catalysts
Koizumi, Yu,Taniguchi, Kento,Jin, Xiongjie,Yamaguchi, Kazuya,Nozaki, Kyoko,Mizuno, Noritaka
supporting information, p. 10827 - 10830 (2017/10/09)
In the presence of supported Pd nanoparticle catalysts, e.g., Pd/Al2O3, various diphenylamines could be synthesized through acceptorless formal arylation using NH3 or its surrogates, e.g., urea, as nitrogen sources and cyclohexanones as arylation sources. The observed catalysis was truly heterogeneous, and the catalyst was reusable with retention of its high catalytic performance.
A new kind of a hole transporting material and its preparation method and application
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Paragraph 0098, (2017/09/26)
The invention discloses a novel hole transport material, and a preparation method and application thereof. The structural formula of the novel hole transport material is disclosed as Formula (I), wherein R1-R28 are respectively hydrogen (H) or methoxy gro
Flexible Steric Bulky Bis(Imino)acenaphthene (BIAN)-Supported N-Heterocyclic Carbene Palladium Precatalysts: Catalytic Application in Buchwald-Hartwig Amination in Air
Lan, Xiao-Bing,Li, Yinwu,Li, Yan-Fang,Shen, Dong-Sheng,Ke, Zhuofeng,Liu, Feng-Shou
, p. 2914 - 2925 (2017/03/23)
To achieve efficient palladium-catalyzed cross-coupling reaction under mild reaction conditions with the flexible steric bulk strategy, a series of Pd-PEPPSI (PEPPSI: pyridine-enhanced precatalyst preparation, stabilization, and initiation) complexes C1-C6 were synthesized and characterized, in which unsymmetric flexible steric bulk was introduced on the N-aryl of ancenaphthyl skeleton. These well-defined palladium complexes were found to be excellent precatalysts for Buchwald-Hartwig amination of aryl chlorides with amines in air. The electronic effect of the Pd-PEPPSI complexes and the effect of ancillary pyridine ligands were evaluated, among which complex C3 exhibited the most efficiency. It was demonstrated that the cross-coupling products were obtained in excellent yields in the presence of 0.5-0.1 mol % palladium loading. A wide range of aryl- and heteroaryl chlorides as well as various amines were compatible. The oxidative addition of aryl chlorides is revealed to be the rate-determining step in the catalytic cycle. The catalytic activity can be enhanced by introducing electron-donating groups to the Pd-PEPPSI complexes. This type of Pd-PEPPSI precatalyst showed the most efficiency reported to date for the challenging C-N cross-coupling reactions requiring no anhydrous and inert atmosphere protections, suggesting flexible steric bulk as a promising catalyst design strategy.
Selective Cross-Coupling of (Hetero)aryl Halides with Ammonia to Produce Primary Arylamines using Pd-NHC Complexes
Lombardi, Christopher,Day, Jonathan,Chandrasoma, Nalin,Mitchell, David,Rodriguez, Michael J.,Farmer, Jennifer L.,Organ, Michael G.
supporting information, p. 251 - 254 (2017/04/26)
Herein we report the first example of (hetero)arylation of ammonia using a monoligated palladium-NHC complex. The new, rationally designed, precatalyst (DiMeIHeptCl)Pd(allyl)Cl featuring highly branched alkyl chains has been shown to be effective in selective aminations across a range of challenging substrates, including nitrogen-containing heterocycles and those featuring base-sensitive functionality. The less bulky Pd-PEPPSI-IPentCl precatalyst performs well for ortho-substituted aryl halides, giving monoarylated products in high yield with good selectivity.
Compound containing anthracene and pyrene and preparing method and application thereof
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Paragraph 0129-0134, (2017/02/24)
The invention provides a compound containing anthracene and pyrene and a preparing method and application thereof. The compound has a structure shown in formula I, wherein R1 and R3 are independently selected from substituted or unsubstituted C1-C60 alkyl groups, substituted or unsubstituted C6-C60 aryl groups, substituted or unsubstituted C10-C60 condensed ring groups or substituted or unsubstituted C5-C60 heterocyclic groups; R2 is selected from hydrogen, substituted or unsubstituted C6-C60 aryl groups, substituted or unsubstituted C5-C60 heterocyclic groups, substituted or unsubstituted C10-C60 condensed ring groups or substituted or unsubstituted C5-C60 arylamine groups; n is 0 or 1. When current density is 20 mA/cm2, the current efficiency of the compound with the structure shown in formula I is as high as 8.9 cd/A, and service life is as long as 8500 h which is much longer than that of existing electroluminescent materials.
Exploring the Catalytic Reactivity of Nickel Phosphine-Phosphite Complexes
Kampmann, Sven S.,Man, Nikki Y. T.,McKinley, Allan J.,Koutsantonis, George A.,Stewart, Scott G.
, p. 1842 - 1853 (2015/12/26)
In this study, we present an investigation into various nickel phosphite and phosphite-phosphine complexes for use in the Mizoroki-Heck and Suzuki-Miyaura cross-coupling reactions and the ammonia arylation reaction. In these coupling reactions, it was discovered that the Ni[P(OEt)3]4, (dppf)Ni[P(OPh)3]2, and (binap)Ni[P(OPh)3]2 catalysts were the most effective. In addition, an optimisation process for these catalytic systems as well as functional group compatibility are discussed.
Hydroxylamine O-benzyl ether as an ammonia equivalent in the catalytic amination of aryl halides
Bedford, Robin B.,Betham, Michael
, p. 8947 - 8950 (2008/03/14)
The palladium catalysed amination of aryl bromides with hydroxylamine O-benzyl ether leads to the formation of diaryl or triarylamines depending on the size of the aryl bromide, the number of equivalents used or the conditions employed.
One-pot synthesis of symmetrical di- and triarylamines using urea as the source of the amino group
Artamkina, Galina A.,Sergeev, Alexey G.,Stern, Mikhail M.,Beletskaya, Irina P.
, p. 235 - 238 (2007/10/03)
A simple one-pot palladium-catalyzed reaction for the conversion of aryl halides to aryl amines using urea as an ammonia equivalent is reported. Arylation of urea in the presence of Pd2dba3, t-Bu 3P·HBF4 and t-BuOK in dioxane gives di- and triarylamines in 65-95% yields. Georg Thieme Verlag Stuttgart.