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
作者:Barahman Movassagh、Leili Tahershamsi、Akbar Mobaraki
DOI:10.1016/j.tetlet.2015.02.088
日期:2015.4
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.