A General and Efficient Method for the Preparation of β-Enamino Ketones and Esters Catalyzed by Indium Tribromide
作者:Zhan-Hui Zhang、Liang Yin、Yong-Mei Wang
DOI:10.1002/adsc.200505268
日期:2006.1
A variety of β-enaminoketones and esters have been synthesized in high to exellent yields by reacting β-dicarbonyl compounds with amines in the presence of a catalytic amount of indiumtribromide. The reaction proceeds smoothly at room temperature in a short reaction time under solvent-free conditions.
A general and efficient method for synthesis of enaminones and enamino esters catalyzed by NbCl5 under solvent-free conditions
作者:Yu-Heng Liu、Ping Wang、Gui-Tian Cheng
DOI:10.1007/s00706-012-0783-8
日期:2013.2
synthesis of β-enaminones and β-enamino esters by reacting 1,3-dicarbonyl compounds with amines in the presence of catalytic amounts of niobium pentachloride. The reaction proceeds smoothly at room temperature under solvent-free conditions and leads to chemo- and regioselective formation of enamine derivatives in high to excellent yields. Graphical Abstract
ZrCl4-Catalyzed Efficient Synthesis of Enaminones and Enamino Esters under Solvent-free Conditions
作者:Jin Lin、Li-Feng Zhang
DOI:10.1007/s00706-006-0565-2
日期:2007.1
A facile synthesis of beta-enaminones and enamino esters by condensation of beta-dicarbonyl compounds with differently substituted amines in the presence of ZrCl4 under solvent-free conditions is reported.
Facial preparation of trifluoroacetic acid-immobilized amino-functionalized silica magnetite nano-catalysts as a highly efficient and reusable for synthesis of β-enaminones
作者:Aekkaphon Mokkarat、Senee Kruanetr、Uthai Sakee
DOI:10.1016/j.molstruc.2022.132745
日期:2022.7
In this paper, a simple method is reported for the preparation of trifluoroaceticacid immobilized silica magnetite nanoparticles. It is a new magnetic nano-catalyst for β-enaminone synthesis from 1 3-dicarbonyl compound. The magnetic nano-catalyst preparation was successfully synthesized by two different methods based on continuous flow synthesis. The synthesized magnetic nano-catalysts were identified