“…Complexes of diaminocarbenium-dithiocarboxylates with various metals, which include Mo, [218] W, [219] Re, [220] Ni, [221] Pd, [222] Pt, [222,223] Ag, [222] and Au, [222] have been reported. Various reactions of the dithiocarboxylate group have been studied, such as cycloaddition with alkynes, [212c] bromination and iodination, [213a] alkylation, [215a,224] oxidation [225] and reduction, [224,226] addition of Grignard and organolithium reagents, [227] and formal addition of tosyl ni-Scheme 29. Betaines derived from diaminocarbenes and CS 2 or CSe 2 trene.…”