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Keywords:

  • fullerenes;
  • hydrogenation;
  • ionic liquids;
  • Lewis acids;
  • palladium
Thumbnail image of graphical abstract

Tackling aromaticity: The title reaction was accomplished by simultaneous activation of molecular hydrogen and the aromatic substrate by Pd/C and a Lewis acidic ionic liquid, respectively. Even benzene and C60 fullerene were hydrogenated under ambient conditions (1 bar of H2 at room temperature). An ionic hydrogenation mechanism (see scheme) is supported by characterization of a stabilized arenium intermediate.