Synthesis, characterization and catalytic application of Fe۳O۴/ ethyleneammoniumtungestophosphate Nano-composite in the synthesis of Spiro[۴H-chromene-۴,۳'-indolin-۲-one]s

The magnetic nanoparticles of Fe۳O۴@C۲H۴NH۳ [Li۲PW۱۲O۴۰] were synthesized. The resultingproduct contains the ammonium group on the magnetic scaffold. The catalytic activities of Fe۳O۴@C۲H۴NH۳[Li۲PW۱۲O۴۰] and Fe۳O۴@C۲H۴NH۲ were studied through their application in one-pot synthesis of somespiro[۴H-chromene-۴,۳'-indolin-۲-one] s. The synthesis was based on a three-component reaction.

کلیدواژه ها:

Magnetic Nanoparticles ، Heteropolyacid ، Catalyst ، Green Chemistry