51927-46-9Relevant articles and documents
A general and selective zinc-catalyzed oxidation of sulfides to sulfoxides
Wu, Xiao-Feng
experimental part, p. 4328 - 4331 (2012/09/22)
A general zinc-catalyzed oxidation of sulfides to sulfoxides has been developed. All the reactions proceeded at room temperature. Hydrogen peroxide was used as a green oxidant. Twenty-one examples of sulfoxides were prepared in moderate to excellent yields.
Sulphur Trioxide/Thiol: A Novel System for the Reduction of Methionine Sulphoxide
Futaki, Shiroh,Yagami, Takeshi,Taike, Takashi,Akita, Tadashi,Kitagawa, Kouki
, p. 653 - 658 (2007/10/02)
A new method for the effective reduction of methionine sulphoxide in protected peptides with sulphur trioxide and thiol has been developed.In practice, a combination of dimethylformamide-sulphur trioxide complex and ethane-1,2-dithiol was found effective, the presence of pyridine in the reaction medium being found necessary for the reduction to proceed.Methionine sulphoxide in two types of protected methionine-enkephalins was efficiently reduced to methionine by this reduction system at 20 deg C in an hour.The (p-methylsulphinyl)benzyl protecting group was also reduced to (p-methylthio)benzyl simultaneously with the reduction of methionine sulphoxide.Subsequent deprotection afforded methionine-enkephalin of high purity in each case.