Silica-supported Sodium Hydrogen Sulfate and Amberlyst-15 : Two Efficient Heterogeneous Catalysts for Single-step Synthesis of 4(3<i>H</i>)-Quinazolinones from Anthranilic Acid, Ortho Esters, and Amines under Solvent Free Conditions
作者:Biswanath Das、Joydeep Banerjee
DOI:10.1246/cl.2004.960
日期:2004.8
The single step synthesis of 4(3H)-quinazolinones has been carried out efficiently by coupling of the three components, anthranilic acid, ortho esters, and amines in the presence of silica-supporte...