Imido transfer of sulfonylimino-lambda3-bromane makes possible the synthesis of sulfonylimino-lambda3-iodanes.

Sulfonylimino-lambda(3)-bromane functions as a reactive nitrenoid, because of the hyperleaving group ability of aryl-lambda(3)-bromanyl groups, and undergoes transimidations to iodobenzenes at room temperature under metal-free conditions probably via an S(N)2-type nitrenoid transition state, yielding sulfonylimino-lambda(3)-iodanes.

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