Visible-light-induced dehydrogenative sulfonylation of tertiary amines under transition-metal- and photocatalyst-free conditions

A dehydrogenative sulfonylation of tertiary amines with thiosulfonates under visible-light is developed. This allows for the construction of (a)cyclic β-sulfonyl enamines under transition-metal-free, external oxidant-free, photocatalyst-free and mild reaction conditions.