Silica-bonded S-Sulfonic Acid: A Recyclable Catalyst for the Synthesis of Trisubstituted Imidazoles under Solvent-free Conditions
作者:Khodabakhsh Niknam、Mohammad R. Mohammadizadeh、Salimeh Mirzaee、Dariush Saberi
DOI:10.1002/cjoc.201090129
日期:——
Trisubstituted imidazoles have been synthesized in high yields in the presence of silica‐bonded S‐sulfonic acid as a catalyst. The reaction was carried out at 130°C undersolvent‐freeconditions. The reaction work‐up is simple and the catalyst is easily separated from the products by filtration.