Novel One‐Pot Synthesis of Functionalized Quinolines from Isocyanides, Aniline, and Acetylene Dicarboxylate
<i>via</i>
Cu‐Catalyzed Intramolecular C─H Activation Reactions
作者:Manijeh Nematpour、Elham Rezaee、Mehdi Jahani、Sayyed Abbas Tabatabai
DOI:10.1002/jhet.3477
日期:2019.4
The one‐pot synthesis of a novel class of substituted quinoline derivatives with good yields is achieved via the Cu‐catalyzed intramolecular C─H activation reaction between isocyanides, aniline, and acetylene dicarboxylate in MeCN at room temperature. The existence of one‐pot conditions, availability of a starting material‐catalyst, the absence of column chromatography, and a high yield of products
一类新的具有良好产率取代的喹啉衍生物的一锅合成实现通过在Cu催化的分子内C─H激活异腈,苯胺和二羧酸乙炔酯之间在MeCN在室温下反应。一锅法条件的存在,原料催化剂的可用性,不存在柱色谱法以及产物的高收率是该方法的优点。通过光谱(1 H NMR和13 C NMR,IR和EI-MS)并通过元素分析确认了结构。
Substituent-controlled chemoselective synthesis of multi-substituted pyridones <i>via</i> a one-pot three-component cascade reaction
An efficient and concise one-pot strategy for the synthesis of multisubstituted pyridones via a one-pot three-component cascade reaction catalyzed by Cs2CO3 under solvent-free conditions has been developed. The substituent-controlled chemoselective cycloaddition process involved steps including a Michael addition/ethanol elimination/intermolecular cyclization sequence utilizing anilines, diethyl a
A novel and facile one-pot reaction has been developed to synthesize a variety of penta-substituted pyrroles from α-nitroepoxides, primary amines and dialkyl acetylenedicarboxylates under the conditions without catalyst. Furthermore, the controlled experiments has been performed and a possible mechanism has also been proposed.