The addition of perfluoroalkanesulfinyl chlorides to alkoxyallenes

The addition reaction of perfluoroalkanesulfinyl chlorides to alkoxyallenes was achieved under mild conditions. Two kinds of perfluoroalkyl alkenyl sulfoxides, β-alkoxyvinyl perfluoroalkyl sulfoxides and α-perfluoroalkanesulfinyl enones or enals, were obtained selectively depending on the structure of alkoxyallenes.