Tantalum Carbide or Niobium Carbide Catalyzed Oxidation of Sulfides with Hydrogen Peroxide: Highly Efficient and Chemoselective Syntheses of Sulfoxides and Sulfones
Masayuki Kirihara*, Atsushi Itou, Takuya Noguchi, Junya Yamamoto
*Department of Materials and Life Science, Shizuoka Institute of Science and Technology, 2200-2 Toyosawa, Fukuroi, Shizuoka 437-8555, Japan, Email: kiriharams.sist.ac.jp
M. Kirihara, A. Itou, T. Noguchi, J. Yamamoto, Synlett, 2010, 1557-1561.
Oxidation of sulfides with 30% hydrogen peroxide catalyzed by tantalum carbide provides the corresponding sulfoxides in high yields, whereas niobium carbide as catalyst efficiently affords the corresponding sulfones. Both catalysts can easily be recovered and reused without losing their activity.
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