Patent ID: 6506286
Filing Date: 2003-01-14
Classification: C07B,C07C

Abstract:
A process for the treatment of a compound which has at least one nucleophilic functional group, comprising the steps of:a) contacting said compound with a reactant comprising, for successive or simultaneous addition: (1) a compound of formula (I): Rfâ€”M(X)(Z)nâ€”Yâ€”R; â€ƒwherein: R denotes a carbon-containing radical, Rf denotes a radical of formula: [R2â€”(C&Xgr;2)pâ€”][R1â€”(C&Xgr;2)mâ€”]CFâ€”â€ƒwherein R1 and R2, which are similar or different, denote fluorine, chlorine, or a carbon-containing radical; m is zero or an integer chosen within the closed range from 0 to 12; p is zero or an integer chosen within the closed range from 0 to 12; and &Xgr;, which are similar or different denote perhalogenated radicals, chlorine or fluorine atoms; with the condition that when m or p are equal to zero, R1 or R2 are electron-withdrawing; n denotes zero or 1; M denotes a carbon atom or a chalcogen of an atomic rank higher than oxygen; and X, Y and Z, which are similar or different, denote a chalcogen; and (2) a source of radicals which is the compound of formula (I) itself, subjected to an actinic source of a wavelength between 200 and 800 nm, or a chemical compound giving rise to free radicals, and b) carrying out a radical reaction of conversion of the compound of formula (I) to a perhaloalkylated thioether in the absence of a substrate.