Silver-Catalyzed Oxidative Coupling of Aniline and Ene Carbonyl/Acetylenic Carbonyl Compounds: An Efficient Route for the Synthesis of Quinolines
作者:Xu Zhang、Xuefeng Xu
DOI:10.1002/asia.201402742
日期:2014.11
An efficient silver‐mediated coupling of aniline with ene carbonyl/acetylenic carbonyl compounds for the synthesis of quinolines is reported. The transformation is effective for a broad range of substrates, thus enabling the expansion of substituent architectures on the heterocyclic framework. The electronic properties of the substituents on the amine have been investigated. It was found that molecules
Iron-Based Imidazolium Salts as Versatile Catalysts for the Synthesis of Quinolines and 2- and 4-Allylanilines by Allylic Substitution of Alcohols
作者:Paz Trillo、Isidro M. Pastor
DOI:10.1002/adsc.201600315
日期:2016.9.15
proven to be very versatile catalysts for the allylic substitution reaction of alcohols with anilines, allowing the synthesis of quinolines, 2‐allylanilines and 4‐allylanilines just by modulating the reaction conditions. Noteworthy, the formation of quinoline derivatives proceeds by ortho‐allylation of the corresponding aniline and subsequent oxidative cyclization mediated by atmospheric oxygen. The reaction
Bronsted acid-mediated reactions of aldehydes with 2-vinylaniline and biphenyl-2-amine
作者:Xu Zhang、Xuefeng Xu、Lintao Yu、Qiang Zhao
DOI:10.1016/j.tetlet.2014.02.090
日期:2014.4
Herein we report simple Bronsted acid-mediated reactions of aldehydes with 2-vinylaniline and biphenyl-2-amine. Ultimately, the useful nitrogen-containing heterocycle derivatives are obtained. The electronic properties of the substituents on the aldehydes and 2-vinylaniline were investigated. It was found that molecules with both electron-donating and -withdrawing substituents were perfectly suitable
One-pot synthesis of 2,4-disubstituted quinolines via three-component reaction of amines, aldehydes and alkynes using Al2O3 nanoparticles/methanesulfonic acid (nano-AMA) as a new catalyst
作者:Hashem Sharghi、Mahdi Aberi、Jasem Aboonajmi
DOI:10.1007/s13738-016-0941-8
日期:2016.12
AbstractAn efficient, useful and general procedure for the synthesis of 2,4-disubstituted quinolines via one-pot three-component reaction of aryl amines, aryl aldehydes and phenylacetylene using Al2O3 nanoparticles/methanesulfonicacid (nano-AMA) as a new catalyst has been described. The major advantages of this protocol are high yields, inexpensive catalyst, short reaction times, green and reusable
摘要通过使用Al 2 O 3纳米颗粒/甲磺酸(nano-AMA)作为新化合物,通过芳基胺,芳基醛和苯乙炔的一锅三组分反应,合成2,4-二取代喹啉的有效,有用和通用程序已经描述了催化剂。该方案的主要优点是高产率,廉价的催化剂,较短的反应时间,绿色和可重复使用的非均相纳米催化剂。发现该催化剂是可回收的,并且可以使用多达五次而不会显着降低其活性。 图形概要