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A visible-light-promoted C(sp(3))-H amidation and chlorination of N-chlorosulfonamides (NCSs) is reported. This remote C(sp(3))-H functionalization can be achieved in weak basic solution at room temperature with as little as 0.1 mol % of a photocatalyst. A variety of nitrogen-containing heterocycles (up to 94% yield) and chlorides (up to 93% yield) are prepared from NCSs. Late-stage C(sp(3))-H functionalization of complex and biologically important (-)-cis-myrtanylamine and (+)-dehydroabietylamine derivatives can also be achieved with excellent yields and regioselectivity.
Q et al. (Wed,) studied this question.
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