OXIDATIVE COUPLING OF ALKYLPHENOLS OR 1-NAPHTHOLS CATALYZED BY METAL COMPLEXES OF THIO-ACID COMPOUNDS

摘要

Abstract of the DisclosureCarbon-carbon coupled self-condensationproducts obtained by the oxidative coupling ofalkylphenols or 1-naphthols are prepared bycontacting an aqueous mixture of an alkylphenolor 1-naphthol with oxygen in the presence ofsufficient alkaline material to sustain a pHin the range of 7.0-9.0 during the oxidativecoupling reaction and a catalyst system comprisinga cupric, cobaltous, manganous or chromic chelateof a thio-acid compound.The mixture may optionally containa surfactant.