Boyland–Sims_oxidation
The Boyland–Sims oxidation is the chemical reaction of anilines with alkaline potassium persulfate, which after hydrolysis forms ortho-hydroxyl anilines.[1][2][3] The reaction is generally performed in water at room temperatures or below, using equimolar quantities of reagents.
The ortho-isomer is formed predominantly. However, the para-sulfate is formed in small amounts with certain anilines.[4]