<div><p></p><p>An efficient and mild InBr<sub>3</sub>-catalyzed approach to synthesize 2,3-dihydroquinazolin-4(1<i>H</i>)-one derivatives (<b>3a–3aa</b>) has been developed. Notably, all the products were isolated by recrystallization and the reaction is accessible on a gram scale. Moreover, the reactions only require 10–60 min. All the synthesized compounds were evaluated for their in vitro anticancer activity against four human cancer cell lines.</p></div
