Design and development of a novel magnetic camphor nanospheres core/shell nanostructure

In this work, the first synthesis, characterization and catalytic performance of fe3o4/camphor core/shell nanospheres as a magnetic composite nanocatalyst were reported. the characterization was carried out by fourier transform infrared spectroscopy, field-emission scanning electron microscopy, transmission electron microscopy, x-ray diffraction, energy-dispersive x-ray spectroscopy, thermogravimetric analysis, vibrating sample magnetometer, n2 adsorption–desorption by brunauer–emmett–teller and inductively coupled plasma analyses. the recoverable heterogeneous nanostructure catalyst was simply prepared and effectively employed in the one-pot multicomponent synthesis of β-amino carbonyl compounds in ethanol as a green solvent at room temperature. further advantages of this new protocol are short reaction times, high yields, easy workup procedure, inexpensive and eco-friendly protocol and magnetically recoverability and several times reusability of the nanocatalyst without significant decrease in catalytic activity.