Acyl anion equivalent with some advantages over 1,3-dithiane for the preparation of vinyl sulfides.It may be used in the synthesis of the following:dihydroxy thioethers; [Cu4I4{μ-PhS2CH2SPh}2]n; [(η5-C5Me5)MCl2(η1-(PhS)2CH2)] (M=Rh, Ir ; C5Me5= pentamethylcyclopentadienyl); 6-deoxy-1,2:3,4-di-O-isopropylidene-α-D-galactoheptodialdo-1,5-pyranose diphenyl dithioacetal. Acyl anion equivalent with some advantages over 1,3-dithiane for the preparation of vinyl sulfides. It may be used in the synthesis of the following:dihydroxy thioethers; [Cu4I4{μ-PhS2CH2SPh}2]n; [(η5-C5Me5)MCl2(η1-(PhS)2CH2)] (M=Rh, Ir ; C5Me5= pentamethylcyclopentadienyl); 6-deoxy-1,2:3,4-di-O-isopropylidene-α-D-galactoheptodialdo-1,5-pyranose diphenyl dithioacetal.