tert-Butyl Hydroperoxide Mediated Cascade Synthesis of 3-Arylsulfonylquinolines

3-Arylsulfonylquinoline derivatives play important roles as pharmaceutical drugs. A new method for the synthesis of 3-arylsulfonylquinoline derivatives has been achieved through tert-butyl hydroperoxide mediated cycloaddition between N-propargyl aromatic amine derivatives and arylsulfonylhydrazides without the addition of any metals. This transformation offers a straightforward route to the formation of a C–S bond and quinoline ring in one step via a sulfonylation–cyclization–aromatization process.