N-iodobutyrylimide is an important electrophilic iodide reagent in organic chemistry. It can react with the intermediate of alkenyl aluminum to prepare alkenyl iodide compounds. It can also be used as an oxidant to oxidize and cyclize β- Lactam. Vinylsilane and vinylstantane were successfully converted into corresponding vinyliodides by n-iodobutyrylimide. In addition, under mild conditions, alkene boric acid reacts with n-iodobutyrylimide to form alkene iodide with constant geometry.