Abstract We have synthesized two recoverable catalysts by covalently attaching complexes such as Cu-complex-phen and Cu-complex-bipy on MCM-41 through a greener synthetic route. FT-IR, EDX, SEM and TEM microscopy, XRD analysis, N2 adsorption and desorption, ICP-OES and TGA were used to characterize the heterogeneous catalysts. The catalytic functioning of Cu-complex-phen-MCM-41 (C1) and Cu-complex-bipy-MCM-41 (C2) were shown yield up to 95% for the synthesis of benzimidazole derivatives in ethanol/methanol solvent under ultrasonic irradiation within 90 min. The catalyst was easily recovered and reused up to three times without significant loss of its activity. Graphical Abstract

中文翻译：

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使用嵌入在 MCM-41 上的 Cu-Schiff 碱配合物作为高效且可重复使用的催化剂，在超声照射下绿色合成苯并咪唑衍生物

摘要 我们通过更绿色的合成路线，将 Cu-complex-phen 和 Cu-complex-bipy 等配合物共价连接到 MCM-41 上，合成了两种可回收催化剂。FT-IR、EDX、SEM 和 TEM 显微镜、XRD 分析、N2 吸附和解吸、ICP-OES 和 TGA 用于表征多相催化剂。Cu-complex-phen-MCM-41 (C1) 和 Cu-complex-bipy-MCM-41 (C2) 的催化作用在超声波照射下在乙醇/甲醇溶剂中合成苯并咪唑衍生物的收率高达 95% 90 分钟内 该催化剂很容易回收并重复使用多达 3 次，而不会显着降低其活性。图形概要