A desulfonylative homocoupling of benzylic sulfone derivatives through a photoredox Ir catalyst is described. The 3,5-bis(trifluoromethyl)phenyl group is an effective substituent on sulfonyl group in this reaction, providing the structurally diverse multiply-arylated ethanes in good yields. The -deuterated or fluorinated sulfones, which can be readily prepared by -functionalization, were also applicable, highlighting an avenue to synthesize medicinally important structures.
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