Preparation of tetra‐n‐butylammonium peroxydisulfate. Novel tetrahydrofuranylation [1] and tetrahydropyranylation of alcohols

Abstract

Tetra-n-butylammonium peroxydisulfate (BuJV' O,) has been successfully prepared and turned out to be a useful source of the tetra-n-butylammonium sulfate radical in organic solvents. Primary, secondary, and tertiary alcohols containing functional groups, such as benzylic, allylic, and sulfide, reacted with tetrahydrofuran or tetrahydropyran in the presence of (TBA)2S208 to give the corresponding 2-tetrahydrofuranylor 2tetrahydropyranyl-ether in excellent yields under nearly neutral conditions.