acidic ionic liquid based silica-coated fe3o4 nanoparticles as a new nanomagnetic catalyst for preparation of aryl and heteroaryl thiocyanates

In this research study, acidic ionic liquid based silica-coated fe3o4 nanoparticles [fe3o4@sio2@(ch2)3-py]hso4 as an efficient and reusable magnetic nanocatalyst was synthesized and characterized using the ft-ir, tem, vsm, xrd, and tga analysis. the catalytic performance of the [fe3o4@sio2@(ch2)3-py]hso4 was evaluated towards the regioselective thiocyanation of aromatic and heteroaromatic compounds with kscn as a thiocyanate source afforded the corresponding aryl and heteroaryl thiocyanates derivatives 2a-n at room temperature in h2o2 as a clean oxidant and ethanol as a green solvent. a broad range of products 2a-n was synthesized high yields (up to yield 97%) under the mild reaction conditions.