Allergenic .alpha.-methylene-.gamma.-lactones. General method for the preparation of .beta.-acetoxy- and .beta.-hydroxy-.alpha.-methylene-.gamma.-butyrolactones from sulfoxides. Application to the synthesis of a tuliposide B derivative
Allergenic .alpha.-methylene-.gamma.-lactones. General method for the preparation of .beta.-acetoxy- and .beta.-hydroxy-.alpha.-methylene-.gamma.-butyrolactones from sulfoxides. Application to the synthesis of a tuliposide B derivative