M. Tsuda et al., ISOLATION AND CHARACTERIZATION OF DIELS-ALDER ADDUCTS OF C-60 WITH ANTHRACENE AND CYCLOPENTADIENE, Journal of the Chemical Society, Chemical Communications, (16), 1993, pp. 1296-1298
The cycloadducts of C60 and typical dienes have been isolated by HPLC,
and the anthracene and cyclopentadiene adducts characterized by FAB m
ass and NMR spectroscopy.