Reductive Molybdenum-Catalyzed Direct Amination of Boronic Acids with Nitro Compounds
作者:Samuel Suárez-Pantiga、Raquel Hernández-Ruiz、Cintia Virumbrales、María R. Pedrosa、Roberto Sanz
DOI:10.1002/anie.201812806
日期:2019.2.11
The synthesis of aromatic amines is of utmost importance in a wide range of chemical contexts. We report a direct amination of boronic acids with nitro compounds to yield (hetero)aryl amines. The novel combination of a dioxomolybdenum(VI) catalyst and triphenylphosphine as inexpensive reductant has revealed to be decisive to achieve this new C−N coupling. Our methodology has proven to be scalable,
Brønsted Acid Catalyzed Functionalization of Aromatic Alcohols through Nucleophilic Substitution of Hydroxyl Group
作者:Abhishek Kumar Mishra、Srijit Biswas
DOI:10.1021/acs.joc.5b02849
日期:2016.3.18
have been substituted by O-, S-, N-, and C-centered nucleophiles under solvent-free reaction conditions. The products are generated in good to excellent yields. para-Toluenesulfonic acid exhibits the best catalytic activity compared to other Brønstedacids. Experimental observations suggest that the reaction proceeds through the intermediacy of the keto tautomer of naphthol. Nucleophilic addition to
在无溶剂反应条件下,萘酚和互变异构酚衍生物的羟基已被O-,S-,N-和C中心的亲核试剂取代。产生的产品良率极佳。与其他布朗斯台德酸相比,对甲苯磺酸显示出最佳的催化活性。实验观察表明该反应通过萘酚的酮互变异构体的中间体进行。亲核加成到羰基上,然后除去水,得到所需产物。本方法提供了对取代的萘[2,1- b ]呋喃衍生物的访问。使用N生成的产品以中心为中心的亲核试剂可以进一步转化为重要种类的有机分子,例如苯并咔唑和咪唑衍生物。
Synergistic lubricating oil composition containing a mixture of a benzo[b]perhydroheterocyclic arylamine and a diarylamine
申请人:Chevron Oronite Company, LLC
公开号:US07501386B2
公开(公告)日:2009-03-10
Disclosed is a lubricating oil composition containing an oil of lubricating viscosity and a particularly effective mixture of a benzo[b]perhydroheterocyclic arylamine and a diarylamine which together provide superior oxidation inhibition.
揭示了一种润滑油组合物,包含具有润滑粘度的油和一种特别有效的苯并[ b ]过氢杂环芳胺和二芳胺的混合物,二者共同提供卓越的氧化抑制作用。
Nickel‐Catalyzed Amination of Aryl Nitriles for Accessing Diarylamines through C−CN Bond Activation
作者:Ke Wu、Qiang Rong、Nan Sun、Baoxiang Hu、Zhenlu Shen、Liqun Jin、Xinquan Hu
DOI:10.1002/adsc.202100641
日期:2021.10.19
A nickel-catalyzedamination 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.
AMINOANTHRACENE DERIVATIVE AND AN ORGANIC ELECTROLUMINESCENT ELEMENT EMPLOYING THE SAME
申请人:Hong Jin-Seok
公开号:US20120161615A1
公开(公告)日:2012-06-28
Disclosed are a novel amino anthracene derivative and an organic electro-luminescence device using the same. More specifically, the disclosed amino anthracene derivative has a core (e.g., indenoanthracene core) of an anthracene moiety (with a high device characteristic) linked to a fluorene moiety (with a high fluorescence characteristic), in which in the core is substituted with at least one amine group represented by Formula 2 and the disclosed organic electro-luminescence device uses the amino anthracene derivative as a light emitting layer material so as to be enhanced in efficiency, operating voltage, and life span.