Perhydroxamate Esters Or Chalcogen Analogues Thereof (i.e., Compounds Having The -c(=x)-nh-x-x- Group, Wherein The X's Are The Same Or Diverse Chalcogens And Substitution May Be Made For Hydrogen Only, And Wherein The Terminal X Is Bonded Directly To Carbon, Which Carbon May Be Single Bonded To Any Atom But May Be Multiple Bonded Only To Carbon) Patents (Class 560/311)
  • Patent number: 7211684
    Abstract: The invention relates to a method for preparing methyl 2-diphenylmethylsulfinylacetate (MDMSA) comprising the steps of: (i) conversion of benzhydrol into methyldiphenylmethylthioacetate (MDMTA); and (ii) conversion of methyldiphenylmethylthioacetate (MDMTA) into methyl-2-diphenylmethylsulfinylacetate by oxidation, according to the following sequence: benzhydrol?MDMTA?MDMSA.
    Type: Grant
    Filed: January 8, 2004
    Date of Patent: May 1, 2007
    Assignee: Cephalon France
    Inventors: S├ębastien Rose, Dominique Klein