Recent years have seen a dramatic expansion in synthetic and structural molybdenum - sulfur chemistry. The amplest binary Mo-S moiety in MO$ ion. The thromolybdates derived by sulfur substitution from the 0x0 analogue have interesting chemical properties. Although they have been studied extensively by synthetic inorganic chemists and bio-inorganic chemists as models for enzymes like introgenases, their reactivity towards organic substrates remamed unexplored.