Sulfonic acid-functionalized magnetic nanoparticles as a recyclable and eco-friendly catalyst for atom economical Michael addition reactions and bis indolyl methane synthesis
作者： Hajar Mahmoudi , Abbas Ali Jafari , Soroosh Saeedi , Habib Firouzabadi
DOI: 10.1039/C4RA11605D
关键词:
摘要: A modified sulfonic acid functionalized magnetic nanoparticle composite (Fe3O4@γFe2O3–SO3H) is prepared by the use of ultrasonic irradiation. By this modification, size nano-particles was reduced and magnetization material highly improved. This improvement drastically affected efficiency separation as a catalyst. new nanomagnetic compound used efficient recyclable catalyst for functionalization indole derivatives via Michael addition Friedel–Crafts alkylation reactions in entirely environmentally friendly media at room temperature. can be easily applied large-scale operations producing desired products excellent yields pure states.
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