A variety of sulfides were converted into the corresponding sulfoxide
            derivatives with 70% tert-butyl
            hydroperoxide in water as the oxidant in the presence of catalytic
            quantity of silver nitrate. The method described has a wide range
            of application, does not involve cumbersome workup, exhibits chemoselectivity,
            and proceeds under mild reaction conditions, and the resulting products are
            obtained in good yields within a reasonable time.
         
            oxidation - sulfide - sulfoxide - silver
               nitrate - 
               tert-butyl hydroperoxide