Synthesis of 1,2,4,5-Tetrasubstituted Imidazoles Using Sulfuric Acid ([3-(3-Silicapropyl)sulfanyl]propyl]ester as a Recyclable Solid Acid

Arabian Journal of Chemistry, 2013

Chinese Journal of Chemistry, 2010

Chinese Journal of Chemistry, 2011

Catalysis Communications, 2007

Antimony trichloride absorbed on silica gel (SbCl3/SiO2) efficiently catalyses the four-component cyclocondensation of 1,2-diketone, aldehyde, ammonium acetate, and primary amine under solvent-free conditions to afford the corresponding tetrasubstituted imidazoles in high yields. The main merit of this study is introducing a novel catalyst to successful synthesis of a wide range of 1,2,4,5-tetrasubstituted imidazoles for the first time. The proposed method involves features such as simplicity, generality, fairly good efficiency, and reusability of the catalyst.

Chinese Chemical Letters, 2011

Anglia, 2018

Academia Letters, 2021

Puruṣārtha 39, 95-116, 2023