Photochemically-Enabled Umpolung Conversion of 2-Acyloxybenzaldehydes into 2-Hydroxybenzofuranones
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2-Acyloxybenzaldehydes are converted into 2-hydroxybenzofuranones in good to excellent yields (60-99%). The reaction proceeds at room temperature in DMSO upon 365 nm LED irradiation under photocatalyst-free conditions. The present atom-economical synthetic app... ...