期刊
ACS COMBINATORIAL SCIENCE
卷 16, 期 7, 页码 352-358出版社
AMER CHEMICAL SOC
DOI: 10.1021/co500022g
关键词
heterogeneous catalyst; core-shell magnetic solid acid; hydrophobicity; Strecker reaction
资金
- Research Council of the K. N. Toosi University of Technology
- Iranian National Science Foundation (INSF) [92013520]
A three-component, Strecker reaction of a series of aldehydes or ketones, amines, and trimethylsilyl cyanide for the synthesis of alpha-aminonitriles in the presence of a catalytic amount of a magnetic solid sulfonic acid catalyst, Fe3O4@SiO2@Me&Et-PhSO3H under solvent-free conditions have been investigated. This catalyst, with a combination of hydrophobicity and acidity on the Fe3O4@SiO2 core-shell of the magnetic nanobeads, as well as its water-resistant property, enabled easy mass transfer and catalytic activity in the Strecker reaction. The catalyst was easily separated by an external magnet and the recovered catalyst was reused in 6 successive reaction cycles without any significant loss of activity.
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