Journal
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
Volume 20, Issue 2, Pages 973-982Publisher
AMER SCIENTIFIC PUBLISHERS
DOI: 10.1166/jnn.2020.16890
Keywords
Magnetite Nanoparticies; Reusable Catalyst; 4-Dihydropyrano[c]Chromenes; 2-Amino-4H-Chmmene; Aqueous Media
Categories
Funding
- Guilan and Zanjan Universities Research Councils
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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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