Magnetically Recyclable Cufe<sub>2</sub>o<sub>4</sub> Nanoparticles as an Efficient and Reusable Catalyst for the Green Synthesis of 2,4,6,8,10,12-Hexabenzyl-2,4,6,8,10,12-hexaazaisowurtzitane as CL-20 Explosive Precursor
<p>Magnetic nanoparticles of copper ferrite (CuFe<sub>2</sub>O<sub>4</sub> MNPs) have been simply prepared and applied as an efficient recyclable and reusable catalyst for the green synthesis of 2,4,6,8,10,12-hexabenzyl-2,4,6,8,10,12-hexaazatetracyclo[5.5.0.0<sup>5,9</sup>.0<sup>3,11</sup>]dodecane (HBIW). The structure of the synthesized pure HBIW (recrystallization from ethanol) was confirmed by using various spectral techniques like infrared (IR), <sup>1</sup>H-NMR, <sup>13</sup>C-NMR and some of its physical properties. The prepared catalyst was characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), and Fourier transform infrared (FTIR). In addition, CuFe<sub>2</sub>O<sub>4</sub> MNPs could be reused up to seven runs without any significant loss of activity. Finally, the remarkable advantages of this method are the simple experimental procedure, shorter reaction times, simple workup, and green aspects by avoiding toxic catalysts and high yield of product.</p
