A Facile and Efficient Deoxygenation of Sulfoxides with Mo(CO) 6

The deoxygenation of sulfoxides to sulfides is a valuable transformation in the application of organosulfur compounds in organic synthesis. Accordingly, a good number of methods have been developed for the reduction of sulfoxides to the corresponding sulfides. 1 However, they often suffer from serious disadvantages, such as functional group incompatibility, difficult work-up procedures, harsh reaction conditions, or not readily available reagents. Further some of these methods are associated with limitations regarding low yields, prolonged reaction times, and intricate procedures. Therefore, there still exists a search for new improved methods based on easily accessible reagents and operationally simple procedures for the reduction of sulfoxides. The use of oxophilic dblock metals have become important in deoxygenation of various types of organic molecules. 2 In this regard, the selective reduction of azides, nitro compounds and hydroxylamines to amines and deoxygenation of epoxides have been accomplished with Mo(CO)6. 3 Recently, we have reported

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