Preparation of pure alkyl-hydroquinones - by electrochemically oxidising alkyl-phenols and electrochemically reducing in aqs ketone soln

摘要

Alkylhydroquinones of formula: (where R is 1-4C alkyl; and n is 1-3), are prepd. by electrolytic oxidn. of alkylphenols of formula: and then electrochemically reducing the formed alkylquinones in the presence of an aq. soln. of an electrolyte and a water-sol. ketone. Used as polymsn. inhibitors, and for the prepn. of dyes, plant protection agents, and substances with biological activity, e.g., vitamin E. Prodts. of 90% purity are obtd.