Triton X‐100 functionalized Cu(II) dihydrazone based complex immobilized on Fe₃O₄@dopa: A highly efficient catalyst for oxidation of alcohols, alkanes, and sulfides and epoxidation of alkenes

Here, we have presented a protocol for green synthesis, characterization, and catalytic application of TX100/Fe 3 O 4 @dopa@CuL ( FDCTX ) magnetically separable nanoparticles. Fe 3 O 4 @dopa@CuL ( FDC ) was synthesized using a four‐step procedure: (i) synthesis of a dihydrazone derivative, (ii) reaction of the dihydrazone derivative with copper perchlorate salt to generate a copper complex of the dihydrazone derivative, (iii) immobilization of the complex onto Fe 3 O 4 @dopa to generate FDC , and (iv) coating of FDC with surfactant Triton X‐100. The as‐synthesized homogeneous complex was well characterized using UV–Vis., Fourier‐transform infrared (FT‐IR), electrospray ionization–mass spectrometry, and single‐crystalX‐ray techniques. Single‐crystalX‐ray analysis revealed the tetranuclear framework of the complex. The heterogeneous nanoparticles ( FDCTX ) were characterized using FT‐IR, powder X‐ray diffraction, scanning electron microscopy, transmission electron microscopy, energy‐dispersiveX‐ray spectroscopy, magnetic hysteresis, and dynamic light scattering techniques. Finally, both the homogeneous and heterogeneous catalysts were utilized for efficient oxidation of alcohols, alkanes, and sulfides and epoxidation of alkenes. A most probable mechanism for the oxidation reaction is proposed at the end of the article.