Synthesis of a Fullerene Derivative of Benzo[18]crown‐6 by Diels‐Alder Reaction: Complexation Ability, Amphiphilic Properties, and X‐Ray Crystal Structure of a Dimethoxy‐1,9‐(methano[1,2]benzenomethano)fullerene[60] Benzene Clathrate

Abstract A fullerene derivative 1 of benzo[18]crown‐6 was obtained by Diels‐Alder addition of fullerene[60](C60) to the ortho‐quinodimethane prepared in situ from 4,5‐bis(bromomethyl)benzo[18]crown‐6 (3) with Bu4NI in toluene. Extraction experiments show that the complexation of K+ ions strongly inc... View More