One-Pot Access to Sulfonylmethyl Arylpyrroles via the Domino Aerobic Wacker-Type Aminocyclization/1,4-Sulfonyl Migration

PdCl<sub>2</sub>/CuCl<sub>2</sub>/NH<sub>4</sub>OAc-mediated the domino aerobic Wacker-type aminocyclization of α-allyl-β-ketosulfones <b>4</b> in cosolvents THF and MeOH afforded 2-(sulfonylmethyl)­arylpyrroles <b>5</b> via 1,4-sulfonyl migration with moderate to good yields.