The synthesis of anticancer sulfonated indolo[2,1-<i>a</i>]isoquinoline and benzimidazo[2,1-<i>a</i>]isoquinolin-6(5<i>H</i>)-ones derivatives <i>via</i> a free radical cascade pathway.

6 Hence, the development of novel, versatile strategies to construct different useful skeletons bearing sulfonyl groups would be highly significant. 7 Recently, the studies revealed that heterocyclic molecules containing sulfonyl-substituents exhibit unique bioactivities and chemical properties, and widely adopted in drug design. 6 d ,8 Among the various sulfonate reagents, the incorporation of sulfonyl radicals, which generated in situ from t

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