One-pot preparation of β-amido ketones/esters in a three-component condensation reaction using magnesium hydrogensulfate as an effective and reusable catalyst
three-component condensation of an aryl aldehyde, an enolizable ketone or β-keto ester, acetyl chloride, and acetonitrile or benzonitrile in the presence of magnesium hydrogensulfate as an active, recoverable, and reusable green catalyst is described for the synthesis of β-amido ketones/esters at room temperature. The key features of this methodology are simplicity, mild reaction conditions, and high
Aromatic aldehydes react in one pot at room temperature with enolizable ketones and acetonitrile in the presence of acetyl chloride and catalytic amount of BiOCl producing the corresponding β-acetamido ketones in very high to excellent yields. BiCl3 generated in situ from BiOCl and acetyl chloride catalyzes the multicomponent reaction.
SBA-15-Pr–SO3H: An efficient, environment friendly and recyclable heterogeneous nanoreactor catalyst for the one-pot multicomponent synthesis of β-acetamido ketones
作者:KIUMARS BAHRAMI、MOHAMMAD M KHODAEI、PEYMAN FATTAHPOUR
DOI:10.1007/s12039-014-0762-1
日期:2015.1
multi-component condensation of aromatic aldehydes, ketones and acetonitrile in the presence of acetyl chloride at 80°C to afford β-acetamido ketones in excellent yields. The catalyst can be recovered and recycled for subsequent reactions without any appreciable loss of efficiency. SBA-15-Pr–SO3H as nanoreactor catalyzes the multicomponent condensation of aromatic aldehydes, ketones, and acetonitrile
ZrOCl2·8H2O: an efficient Lewis acid catalyst for the one-pot multicomponent synthesis of β-acetamido ketones
作者:Rina Ghosh、Swarupananda Maiti、Arijit Chakraborty、Santu Chakraborty、Alok K. Mukherjee
DOI:10.1016/j.tet.2006.02.037
日期:2006.4
Aromatic aldehydes were reacted in one-pot with enolisable ketones, acetonitrile and acetyl chloride at ambient temperature in the presence of ZrOCl2·8H2O to furnish the corresponding β-acetamidoketones in very good to excellent yields. X-ray crystallographic analysis of one anti-β-acetamido ketone exhibited a two-dimensional supramolecular framework by a combination of N–H⋯O, C–H⋯O and C–H⋯π (arene)
CuSO<sub>4</sub> · 5H<sub>2</sub>O: A Novel, Green, Reusable, and Environmentally Friendly Catalyst for the One-Pot, Four-Component Synthesis of<font>β</font>-Acetamido Carbonyl Compounds
作者:Farahnaz K. Behbahani、Neda Doragi、Majid M. Heravi
DOI:10.1080/00397911.2010.529354
日期:2012.3.1
Abstract Multicomponent reactions for the synthesis of β-acetamido carbonyl compounds have been gained considerable attention in organic synthesis. In this articles, aromatic aldehydes have been employed in a one-pot reaction with enolizable ketones, acetonitrile, benzonitrile, and acetyl chloride in the presence of copper(II) sulfate petahydrate at ambient temperature to afford the corresponding β-acetamido
摘要 β-乙酰氨基羰基化合物的多组分反应在有机合成中受到了广泛关注。在这篇文章中,在环境温度下,在五水硫酸铜 (II) 存在下,芳香醛与可烯醇化的酮、乙腈、苄腈和乙酰氯进行一锅反应,得到相应的 β-乙酰氨基酮。产量。报告了新化合物。使用现成的五水硫酸铜 (II) 作为可重复使用和可回收的催化剂,使该过程变得非常简单、方便且环保。图形概要