Transition-metal-free Baeyer–Villiger oxidation of benzaldehydes to phenols using Na2S2O8

A new approach for preparation of phenols from benzaldehydes using Na2S2O8 has been established. This reaction is a Na2S2O8-promoted Baeyer–Villiger oxidation. It provides a highly efficient and practical approach for the preparation of phenols. The protocol is highlighted by its operational simplicity and mild conditions.

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