Ionic amino acids: Application as organocatalysts in the aza-Michael reaction
摘要:
The ethyl methyl imidazolium salts of amino acids, [emiml[AA], have been used as catalysts in the aza-Michael reaction. Furthermore, when chiral amino acids were used, a stereoselective reaction was achieved. The mechanism of the transformation was verified by the detection of a key intermediate by electrospray ionization mass spectroscopy (ESI-MS). (C) 2012 Elsevier B.V. All rights reserved.
The Mannich Reaction Between Aromatic Ketones, Aromatic Aldehydes and Aromatic Amines
作者:Yi Lin、Lei Huangshu、Zou Junhua、Xu Xiujuan
DOI:10.1055/s-1991-26554
日期:——
The acid-catalyzed Mannich reaction of acetophenones with benzaldehyde derivatives and aromatic amines gives 1,3-diaryl-3-(arylamino)propanones in high yield.
Reusable 1,2,4-Triazolium Based Brønsted Acidic Room Temperature Ionic Liquids as Catalyst for Mannich Base Reaction
作者:Sankaranarayanan Nagarajan、Elango Kandasamy
DOI:10.1007/s10562-014-1312-7
日期:2014.9
Unprecedented examples of 1-alkyl-1,2,4-triazolium methanesulfonate based Brønsted acidic room temperature ionicliquids were synthesized and characterized. Their catalytic activity and efficiency in recyclability and reusability on one pot synthesis of halide substituted β-amino carbonyl compounds are reported.Graphical Abstract
Recyclable heterogeneous Cu-nanoparticles efficiently catalyzed the one-pot three-componentMannichreaction of ketones, aromatic aldehydes and amines in methanol. This method provides a novel and improved method for obtaining β-amino carbonyl compounds in terms of good yield with little catalyst loading.
Cerium Chloride (CeCl3·7H2O) as a highly efficient catalyst for one-pot Three-Component Mannich reaction
作者:Mazaahir Kidwai、Jahan Anwar
DOI:10.1590/s0103-50532010001200002
日期:——
We have demonstrated the use of CeCl3· 7H2O as highlyefficient catalyst for one-potMannichreaction to afford β-amino carbonyl compounds in good to excellent yield within shorter period of reaction time. The process is mild, efficient, environmentally benign with the use of little amount of catalyst.
An Efficient Synthesis of 1,3-Diphenyl-3-phenylamino-propan-1-one and its Derivatives by Mannich Reaction in the Presence of Doped Porous Carbon by Nitrogen and Sulfur (NS-PCS) as Catalyst
作者:Aida Mansoori、Hossein Eshghi、Jalil Lari
DOI:10.1002/jccs.201700095
日期:2018.5
catalysts. In this work, the reactionbetween acetophenone, aromaticaldehydes, and aromatic amines has been efficiently catalyzed by porous carbon spheres which were doped by nitrogen and sulfur (NS‐PCS) at ambient temperature to give diverse β‐amino carbonylcompounds in nearly high yields.