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Abstract
Transition-metal-free multicomponent reactions involving aryne precursors, secondary
amines, and sulfuryl fluoride are reported herein. Zwitterionic intermediates formed
from the reaction of arynes with amine nucleophiles can capture SO2F2 under mild conditions,
offering a novel and practical protocol for the synthesis of 2-dialkyl-, 2-alkylaryl-,
or 2-diarylamino-substituted arenesulfonyl fluoride derivatives in good to excellent
yields.