Paper Details

Name: Anuja Atul Pardeshi
Email: pardeshianuja121@gmail.com
Country: India

Year: 2024
Volume: Volume-11, Issue-1 (January-June)
Page Number: 44-49

A simple approach was used to prepare concentrated nitric acid supported on nano silica (HNO3@nanoSiO2). The synthetic powder was used as an efficient catalytic system for the synthesis of different 2,4,5-trisubstituted imidazoles in good to outstanding yields under solvent-free conditions at 100 C. Furthermore, 1,2,4,5-tetrasubstituted imidazoles have been successfully performed under the same reaction conditions. In three runs, the recovery and reusability of HNO3@nano SiO2 were tested without activity loss. In the reported technique, the main properties of this acidic Nano catalyst include high product yield, quick reaction times, green reaction media, and a wide variety of substrates usage. The theorized mechanism of cyclo-condensation is also depicted.