cis-RuCl2(DMSO)4-catalyzed oxidation of sulfides by N-methylmorpholine N-oxide (NMO)

✍ Scribed by G. Caroling; J. Rajaram; J. C. Kuriacose

• Publisher: John Wiley and Sons
• Year: 1990
• Tongue: English
• Weight: 667 KB
• Volume: 22
• Category: Article
• ISSN: 0538-8066
• DOI: 10.1002/kin.550221104

✦ Synopsis

Abstract

The induction period observed in the cis‐RuCl~2~(DMSO)~4~ catalyzed oxidation of thioethers (S) to sulfoxides by N‐methylmorpholine N‐oxide (NMO) is attributed to the rate of formation of the active species viz. RuCl~2~(DMSO)~3~S. Cyclic voltammetric studies indicate formation of the Ru^IV^ = 0 species. Based on the variable orders in NMO and first order in each of the other reactants, a mechanism is proposed where the active species generated in situ reacts with NMO in a slow step to form Ru^IV^ oxo complex which then decomposes to give the product.