Perbrominated Sulfonium-Substitutedcloso-Decaborates withexo-Polyhedral Amino Groups [2-B10Br9S((CH2)nNH2)2]-(n=1-3)

A method for preparing fully brominated sulfonium derivatives of thecloso-decaborate anion with functional amino groups (n-Bu4N)[2-B10Br9S((CH2)(n)NH2)(2)](-)(n =1-3) has been developed. The method is based on the interaction between sulfonium derivatives of thecloso-decaborate anion with phthalimide groups (n-Bu4N)[2-B10Br9S((CH2)(n)pht)(2)](-)(n =1-3) and elemental bromine in acetonitrile in an inert atmosphere, followed by removal of the phthalimide protection using methylamine.