Air oxidation of sulfides to sulfoxides using BiBr3-Bi(NO3)3 as a binary catalyst

Article abstract of DOI:10.1246/cl.1997.1229

Selective air oxidation of sulfides to sulfoxides was accomplished with a binary catalytic system, BiBr₃-Bi(NO3)₃, in high yields under aerial ambient conditions. This oxygenation requires neither an aldehyde nor a transition metal complex.