共 50 条
- [5] A comparative study on the catalytic activity of Fe3O4@SiO2–SO3H and Fe3O4@SiO2–NH2 nanoparticles for the synthesis of spiro [chromeno [2, 3-c] pyrazole-4, 3′-indoline]-diones under mild conditions Research on Chemical Intermediates, 2016, 42 : 6391 - 6406