Silica sulfuric acid is utilized as a green, highly efficient, heterogeneous and recyclable catalyst for the preparation ofβ-enaminones andβ-enamino esters from amines andβ-dicarbonyl compounds under solvent-free conditions at 80 °C. Using this method, the title compounds are produced in high to excellent yields and in short reaction times.
硅硫酸被用作绿色、高效、非均相且可回收的催化剂,用于在80°C的无溶剂条件下从胺和β-二羰基化合物制备β-烯酮和β-烯胺酯。利用这种方法,所述化合物以高产率至极好的产率和短反应时间制备。