Retro‐Cycloaddition Reaction of Pyrrolidinofullerenes

Abstract

All things retro: Pyrrolidinofullerenes undergo a retro-cycloaddition reaction to afford the corresponding fullerene (C60, C70, or an endohedral C80 metallofullerene; see scheme) in quantitative yield upon treatment with an excess of a dipolarophile (maleic anhydride or N-phenylmaleimide) in o-dichlorobenzene. The reaction works efficiently with higher fullerenes and has allowed the isolation of one of the constitutional isomers of Sc3N@C80. Supporting information for this article is available on the WWW under http://www.wiley-vch.de/contents/jc_2002/2006/z502556_s.pdf 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.