Carbonium ions are known to remove a hydride alpha to an amine, to form an iminium ion.  The reactivity of tris(4-(dimethylamino)phenyl) carbonium ion, tris(4-methoxyphenyl) carbonium ion and triphenyl carbonium ion, with triisoctylamine, tripropylamine, tributylamine and triethylamine will be determined by UV-visible spectrophotometry in acetonitrile.  Trapping studies of the iminium ion with sodium methoxide will also be performed. Based on the quantitative data, a structure-reactivity profile will be obtained.