Nitryl fluorosulfonate

Nitrosyl hydrogen sulfate adds to aikenes at -40 C in liquid SO , in Markovnikov fashion giving 2-sulfato-oximes (37-84%).Reactions of nitrogen oxides with aikenes are usually complex, yet some have limited industrial, rather than laboratory, importance. Nitryl tetrafluoroborate in acetic anhydride at -65 to -45 C adds Markovnikov fashion to aikenes, with only fair stereoselectivity, giving 3-ni-troacetates in 36-40% yields. Nitryl fluorosulfonate adds to perfluoroalkenes in fluorosulfonic acid/ffeon-113 giving 63-92% 0-nitroperfluoroalkyl fluorosulfonates. 

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