Experimental chemistry study demonstrates visible-light photoredox sulfonylation and cyclization of ketene dithioacetals, suggesting an efficient route to functionalized benzoxepines.
A general and efficient methodology for the synthesis of benzoxepine derivatives via visible‐light‐induced regioselective radical cyclization has been developed. This method has good regioselectivity, is operationally simple, and exhibits high‐functional group tolerance.
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Zhao et al. (2026) studied this question.
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