Evaluates sulfonylation of pyridines using sulfur dioxide, suggesting new synthetic pathways.
-sulfonylation of pyridines via a dearomatization and rearomatization strategy from sulfur dioxide with thianthrenium salts as radical precursors. Mechanistic studies indicated that oxazino-pyridine substrates serve as redox-active substrates that quench the excited photocatalyst.
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Wang et al. (2026) studied this question.
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