Boehmite nanoparticles, an efficient green catalyst for the multi-component synthesis of highly substituted imidazoles

• Boehmite nanoparticles was prepared and used as a catalyst for synthesis of highly substituted imidazoles.
• Boehmite nanoparticles is an efficient and reusable catalyst for this process.
• This protocol is green, solvent-free and advantageous with high yields.

Boehmite nanoparticles (AlOOH NPs) was found to be a highly active and green catalyst for the synthesis of highly substituted imidazoles under solvent-free conditions. This one-pot procedure is very simple, and affords good to excellent yields. Furthermore, the catalyst shows good thermal stability and recyclability. The catalyst was recycled for five runs without an appreciable loss in its catalytic activity.

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