15-Membered Macrocyclic Schiff-Base-Pd(0) Complex Immobilized on Fe3O4 MNPs: An Novel Nanomagnetic Catalyst for the One-Pot Three-Component C–H Chalcogenation of Azoles by S8 and Aryl Iodides

This fact that diaryl sulfides are important structural components in polymers, agrochemicals, natural products, and pharmaceutical intermediates has increased the attention of chemists to synthesize these compounds. In recent times, the research on the preparation of diaryl sulfides using magnetically reusable catalysts have received profound attention in organic chemistry. In this paper, we describe the fabrication and characterization of a magnetically reusable palladium nanomaterial and evaluate its catalytic activity for the preparation of diaryl sulfides through one-pot three-component coupling reaction of azoles, S 8 and aryl iodides. The structure of palladium supported on magnetic nanoparticles was well characterized by a series of spectroscopic techniques including FT-IR, SEM, TEM, EDX, XRD, VSM, TGA, ICP-OES. To the best of our knowledge, it is the first report on the utilization of Pd nanomagnetic catalyst for the one-pot three-component coupling reaction of azoles, S 8 and aryl iodides. Graphical Abstract