期刊
CURRENT ORGANIC CHEMISTRY
卷 20, 期 15, 页码 1648-1654出版社
BENTHAM SCIENCE PUBL LTD
DOI: 10.2174/1385272820666160218233729
关键词
Nanoparticles; magnetite; heterogeneous catalysis; sulfamic acid; imidazo[1,2-a]pyrimidine; multicomponent reaction
资金
- research council of Arak University
Alkyl disulfamic acid-functionalized silica-coated magnetic nanoparticles (ADSA-MNPs) have been synthesized as a hybrid organic-inorganic acidic nanoparticles and its catalytic activity has been evaluated in the synthesis of mono-, bis- and tris 1,2-dihydrobenzo[4,5]imidazo[1,2-a]pyrimidine via a one-pot three, pseudo-five or pseudo-seven component condensation reaction of aromatic aldehydes, malononitrile and 2-aminobezimidazole under solvent-free heating. The heterogeneous catalyst was facilely separated from the reaction mixture by utilizing external magnetic field and reused for several times without considerable decrease of catalytic performance.
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