Symmetrical and unsymmetrical 3,3-di(aryl)indolin-2-ones have been synthesized by nano-SiO2 as green, heterogeneous, and reusable catalyst under solvent-free conditions at room temperature
对称和非对称的3,3-二(芳基)吲哚啉-2-酮已经通过纳米SiO2作为绿色、非均相和可重复使用的催化剂,在室温下无溶剂条件下,通过磁搅拌和研磨方法合成。还提出了一种可能的缩合机理。