Bimetallic Oxidation Catalysts: Oxidations with Tert Butylhydroperoxide Mediated by Bis-(Tributyltin Oxide) Dioxochromium (VI)

Abstract

At 40–80°C, t.BuOOH in conjunction with catalytic amounts of (n.Bu₃ SnO)₂ CrO₂ 1 oxidizes benzylic alcohols, methylenes in α-position of aryl, ethylenic or acetylenic groups into ketones, anthracene into anthraquinone, adamantane into adamantan-1-ol and 2-one. Except for propargylic oxidations, yields are generally superior to those obtained when CrO₃ is used as catalyst instead of 1.