hierarchically porous carbon plates are developed for the immobilization of SACs to enhance catalytic activity and stability. The carbon-based SACs exhibit excellent activity and selectivity (≈68%) for the synthesis of substituted quinolines by a three-component oxidative cyclization, affording a wide assortment of quinolines (23 examples) from anilines and acetophenones feedstock in an efficient, atom-economical
Synthetic Utility of Propylphosphonic Anhydride–DMSO Media: An Efficient One-pot Three-component Synthesis of 2-Arylquinolines
作者:Kereyagalahally H. Narasimhamurthy、Siddappa Chandrappa、Kothanahally S. Sharath Kumar、Toreshettahally R. Swaroop、Kanchugarakoppal S. Rangappa
DOI:10.1246/cl.130432
日期:2013.9.5
Propylphosphonic anhydride (T3P®)–DMSO-mediated one-pot three-component synthesis which provides 2-arylquinolines in a single step from benzyl alcohols, anilines, and ethyl vinyl ether by the modified Povarov reaction has been demonstrated. T3P®–DMSO is a mild and low-toxic peptide coupling agent and an easy to handle reagent for bulk reactions at room temperature.
Facile synthesis of substituted quinolines by iron(<scp>iii</scp>)-catalyzed cascade reaction between anilines, aldehydes and nitroalkanes
作者:Sachinta Mahato、Anindita Mukherjee、Sougata Santra、Grigory V. Zyryanov、Adinath Majee
DOI:10.1039/c9ob01294j
日期:——
A library of substituted quinolines has been synthesized by the reaction of aldehydes, anilines and nitroalkanes using a catalytic amount of Fe(iii) chloride. The reaction is a simple, efficient, one-pot, three-component domino strategy in ambient air which afforded the products in high yields. A probable pathway of the reaction is a sequential aza-Henry reaction/cyclization/denitration. The use of
efficient copper-catalyzed intermolecular decarboxylative cascade cyclization has been developed that uses readily accessible starting materials and less-expensive reagents. A one-pot reaction of an aryl aldehyde, an aniline, and acrylic acid permits the direct synthesis of 2-substituted quinolines through the sequential formation of C–N and C–C bonds. Furthermore, the three-component, one-pot, domino
Three-Component Synthesis of 2-Substituted Quinolines and Benzo[<i>f</i>]quinolines Using Tertiary Amines as the Vinyl Source
作者:Yanfeng Ma、Chunlan Zhou、Fuhong Xiao、Guojiang Mao、Guo-Jun Deng
DOI:10.1021/acs.joc.2c02677
日期:2023.3.3
the construction of 2-substituted quinolines and benzo[f]quinolines from aromatic amines, aldehydes, and tertiary amines has been demonstrated. Cheap and readily available tertiary amines acted as the vinyl source. A new pyridine ring was selectively formed via [4 + 2] condensation that was promoted by ammonium salt under neutral conditions and an oxygen atmosphere. This strategy provided a new route
已经证明了一种从芳香胺、醛和叔胺构建 2-取代喹啉和苯并 [ f ] 喹啉的无金属方法。廉价且容易获得的叔胺充当乙烯基来源。在中性条件和氧气气氛下,通过铵盐促进的[4 + 2]缩合选择性地形成新的吡啶环。该策略为制备吡啶环上具有不同取代基的多种喹啉衍生物提供了一条新路线,为进一步修饰提供了可能。