Dirhodium(II) Tetraacetate-Mediated Decomposition of Ethyldiazoacetate and Ethyldiazomalonate in the Presence of Fullerene. A New Procedure for the Selective Synthesis of [6-6]-Closed Methanofullerenes - Pellicciari, Roberto; Annibali, Danilo; Costantino, Gabriele; Marinozzi, Maura; Natalini, Benedetto (Synlett, 1997)