The reaction of various sulfur reagents (S8, H2S, Na2S, NaHS) with cyclohexane under GifIII, GoAggII and GoAggIII conditions affords the usual oxidation products in competition with cyclohexyl di- and poly-sulfide formation. Other cyclic hydrocarbons behave similary. The sulfation reactions are considered to be biomimetic for the enzymes N synthase and biotin synthase.