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Di(4-nitrobenzoyloxy)iodo]benzene (1), a hypervalent iodine compound, is easy to prepare and stable as a solid, and was shown to be a useful functional group transforming agent in this report. Oxidative synthesis of symmetrical disulfides from thiols in the presence of compound 1 alone was performed in 58–100% yields. Furthermore, ESI-MS demonstrated that premixing of 1 and Ph 3 P yields the corresponding acyloxyphosphonium, which can acylate thiols to produce thioesters in 69–100% yields. With the assistance of a mixture of 1 and Ph 3 P, hydroxy and amino groups were benzoylated to esters and amides, respectively, also in 9–100% yields.

Hypervalent iodine-mediated formation of S–S, C–S, C–O, and C–N bonds