Rhodium(II)-Catalyzed Intramolecular Cycloisomerizations of Methylenecyclopropanes with N-Sulfonyl 1,2,3-Triazoles.

Several intramolecular tandem reactions of methylenecyclopropanes with rhodium(II) azavinyl carbenes are realized. Different types of cycloisomerizations are observed depending on substrates used. Derivatization of the products easily gives a series of diazabicyclo[3.2.1]octane derivatives. [ABSTRACT FROM AUTHOR]