Abstract:A "green" highly selective oxidation of organic sulfides to the corresponding sulfoxides was developed using hydrogen peroxide and glacial acetic acid under transition metal-free and mild conditions. The oxidation procedure is very simple and the products are easily isolated in excellent yields (90-99%).

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The oxidative coupling of aromatic thiols into the corresponding disulfides with urea-hydrogen peroxide using a Mn(III)-salen complex as catalyst under mild conditions is described. This system provides an efficient, convenient and practical method for the syntheses of symmetrical disulfides.

Sulfoxides Q 0600Mn (III)-Catalyzed Oxidation of Sulfides to Sulfoxides with Hydrogen Peroxide. -The simple and efficient procedure allows a directed oxidation of the sulfur. -(HOSSEINPOOR, F.; GOLCHOUBIAN*, H.; Tetrahedron Lett. 47 (2006) 29, 5195-5197; Dep. Chem., Mazandaran Univ., Babolsar, Iran; Eng.) -Mais 43-098