Choline-based biodegradable ionic liquid catalyst for Mannich-type reaction
作者:PENG HUAN、HU YULIN、XING RONG、FANG DONG
DOI:10.1007/s12039-016-1199-5
日期:2016.12
A three-component Mannich-typereaction of aromatic aldehydes, ketones, and amines was catalyzed by a novel choline-based acidic ionic liquid. The proposed catalyst was a Lewis-Brønsted dual acid catalyst as well as water-tolerant. The β-amino carbonyl compounds were obtained at room temperature in reasonable to good yields ranging from 63 to 98%. After the reaction, the catalyst could be recycled
A magnetic solid sulfonic acid modified with hydrophobic regulators: an efficient recyclable heterogeneous catalyst for one-pot aza-Michael-type and Mannich-type reactions of aldehydes, ketones, and amines
Two convenient green protocols for the synthesis of 3-amino ketones have been developed which involve one-pot aza-Michael-type and Mannich-type reactions of a series of aldehydes, ketones, and amines in the presence of a catalytic amount of the magnetic solid sulfonic acid catalyst, Fe3O4@SiO2@Me&Et-PhSO3H, at room temperature. The catalyst can be reused four times without loss of activity. (C) 2015 Elsevier Ltd. All rights reserved.
CeCl3·7H2O as an efficient catalyst for one-pot synthesis of β-amino ketones by three-component Mannich reaction
作者:Yan Dai、Bin Dong Li、Heng Dao Quan、Chun Xu Lü
DOI:10.1016/j.cclet.2009.08.011
日期:2010.1
Cerium trichloride heptahydrate (CeCl3 center dot 7H(2)O) was found to be an efficient and recyclable catalyst for the three-component direct Mannich reaction of anilines and benzaldehydes with acetophenone. This protocol has advantages of high yield, no environmental pollution, mild condition, and simple work-up procedure. (C) 2009 Chun Xu Lu. Published by Elsevier B.V. on behalf of Chinese Chemical Society. All rights reserved.
Dipyridine Copper Chloride-Catalysed One-Pot Synthesis of (β-amino Carbonyl Compounds via Mannich Reaction
CuPy2Cl2-catalysed Mannich reaction of aromatic aldehyde, aromatic amine, and acetophenone proceeded smoothly in water to afford the corresponding β-amino carbonyl compounds in excellent yields.