期刊
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
卷 20, 期 2, 页码 973-982出版社
AMER SCIENTIFIC PUBLISHERS
DOI: 10.1166/jnn.2020.16890
关键词
Magnetite Nanoparticies; Reusable Catalyst; 4-Dihydropyrano[c]Chromenes; 2-Amino-4H-Chmmene; Aqueous Media
类别
资金
- Guilan and Zanjan Universities Research Councils
A green, simple and eco-friendly procedure for the preparation of 3,4-dihydropyrano[c]chromenes and 2-amino-4H-chromene derivatives is described using Fe3O4@SiO2-Sultone as a novel and efficient magnetic nanocatalyst. All reactions are performed under mild conditions and all products are obtained in high yields during short reaction times. The catalyst can be easily isolated from the reaction mixture by magnetic decantation using an external magnet and reused at least five times without significant degradation in the activity.
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