High catalytic performance of CoCuFe2O4 /ZIF-8(Zn) nanocatalyst for synthesis of new benzimidazole derivatives

Herein, we reported an efficient catalytic system for the rapid construction of benzimidazole, benzimidazole-quinoline, benzothiazole, and benzoxazole derivatives by a reaction between arylaldehy-des, and ortho-phenylenediamine (2-aminothiophenol, 2-aminophenol) under green conditions. Magnetic CoCuFe2O4/ZIF-8(Zn) was synthesized by a simple and facile procedure with the aid of cetyltrimethylam-monium bromide (CTAB) to bind CoCuFe2O4 and ZIF-8(Zn). Different techniques such as Fourier transmis-sion infrared spectroscopy (FT-IR), X-ray diffraction (XRD), Field emission scanning electron microscopy (FESEM), and Transmission electron microscopy (TEM) were used to characterize the catalyst structure. This catalytic system gave us a satisfactory answer and provided the corresponding products with excel-lent yields. In order to implement procedures to comply with green chemistry, water was used for the synthesis of both catalyst and benzimidazole (benzimidazole-quinoline, benzothiazole, and benzoxazole) derivatives. This publication is the first easy protocol to be reported for the rapid synthesis of benzimida-zole (benzimidazole-quinoline, benzothiazole, and benzoxazole) derivatives at room temperature without harsh conditions.(c) 2023 Elsevier B.V. All rights reserved.