Fe3O4@SiO2-imid-PMAn Magnetic Porous Nanosphere as Reusable Catalyst for Synthesis of Polysubstituted Quinolines under Solvent-free Conditions

In this research, a facile one-pot synthesis of poly-substituted quinoline derivatives has been demonstrated by using 2-aminobenzophenones and ethylacetoacetate or ketones in the presence of Fe3O4@SiO2- imid-PMAn and Fe3O4@SiO2-imid-PMAb nanoparticles as green and reusable catalysts under solvent- free conditions. The reaction proceeds efficiently in excellent yields and in a state of excellent purity. The nanocatalysts can be recycled and reused for at least four times without noticeably decreasing in catalytic activity

Polysubstituted quinolines; Heteropolyacides; Solvent-free; Magnetic nanocatalyst