Facile one-pot three-component synthesis of diverse 2,3-disubstituted isoindolin-1-ones using ZrO<sub>2</sub> nanoparticles as a reusable dual acid–base solid support under solvent-free conditions
A facileone-potthree-component protocol for the synthesis of a series of multi-functionalized 2,3-disubstituted isoindolin-1-ones has been developed using ZrO2 nanoparticles as a dual acid–base solid support under solvent-free conditions. The surface of the ZrO2 nanoparticles, which is embedded with active hydroxyl groups, oxyanions and Zr4+ ions, efficiently catalyses the condensation of 2-carboxybenzaldehyde
An operationally simple, one-pot, catalyst-free method was developed for the synthesis of pharmaceutically important substituted isoindolinones by a three-component reaction of 2-formylbenzoic acid, a primary amine, and a 1,3-dione in ethanol under dielectric heating.