Jan C. Hummelen , Majid Keshavarz-K , Joost L. J. van Dongen , René A. J. Janssen , E. W. Meijer and Fred Wudl
The enantiomers of the first cagewise inherently asymmetric C 60 derivative, i.e. N-MEM (MEM = 2-methoxyethoxymethyl) keto lactam 1, have been separated by HPLC and their chiroptical properties compared with data obtained from C 60 derivatives that are dissymmetric or asymmetric due to chiral addends.