Abstract
An efficient protocol for the synthesis of 2,3-dihydroquinazolinone derivatives from substituted 2-aminobenzamides and carbonyl analog catalyzed by the natural-based 5,5’-indigodisulfonic acid has been developed with good to excellent yields. Compared to the reaction conditions reported before, the use of eco-friendly and recyclable catalysts and mild reaction conditions are the major advantages of the present method.
Graphical Abstract
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Acknowledgments
We thank the Jiangsu Institute of Botany Talent Fund (JIBTF202207) for financial support.
Disclosure statement
The authors declare no conflict of interest.