Phenylaziridine as a Masked 1,3 Dipole in Reactions with Nonactivated Alkenes

Really a carboamination, that is the end result of the reaction of N-tosyl-2-phenylaziridine (1) with various alkenes in the presence of BF3⋅Et2O to produce substituted pyrrolidines. With methylenecycloalkenes such as 2, the spiropyrrolidine 3 is conveniently accessible in good yields. In these reactions 1 has the reactivity of an electron-poor 1,3 dipole. Supporting information for this article is available on the WWW under http://www.angewandte.com or from the author. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.