Journal
RESEARCH ON CHEMICAL INTERMEDIATES
Volume 46, Issue 2, Pages 1109-1125Publisher
SPRINGER
DOI: 10.1007/s11164-019-04022-9
Keywords
Fe3O4@SiO2-Pr-Sulfurol-SO3H; Spiro[acridine-9; 5 '-thiazole]-1; 4 '-dione; Heterogeneous magnetic nanocatalyst; Multicomponent reactions; Green chemistry
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Funding
- University of Sistan and Baluchestan Research Councils
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Sulfonated Sulfurol supported Fe3O4 (Fe3O4@SiO2-Pr-Sulfurol-SO3H) a new magnetic reusable nanocatalyst was prepared using chemical modification of magnetic nanoparticles (MNPs) surface with Sulfurol-SO3H. The Sulfurol-SO3H moieties on the surface of MNPs act as acidic catalytic sites for catalysis purposes. Fe3O4@SiO2-Pr-Sulfurol-SO3H was authenticated by usual analytical and spectroscopic techniques. The prepared Fe3O4@SiO2-Pr-Sulfurol-SO3H MNPs were applied to the preparation of novel Spiro[acridine-9,5 '-thiazole]-1,4 '-dione derivatives via the three-component condensation of isatins, dimedone and thioamides or thioureas.
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