摘要
Fluoroboric acid adsorbed on silica-gel(HBF4·SiO2) has been found to be an extremely efficient and recyclable catalyst for the preparation of β-enaminones and β-enamino esters under solvent-free conditions.
Fluoroboric acid adsorbed on silica-gel(HBF4·SiO2) has been found to be an extremely efficient and recyclable catalyst for the preparation of β-enaminones and β-enamino esters under solvent-free conditions.