Yh. Wang et al., A SUPERIOR SYNTHESIS OF [6,6]-METHANOFULLERENES - THE REACTION OF SULFONIUM YLIDES WITH C-60, Tetrahedron letters, 36(38), 1995, pp. 6843-6846
The addition-elimination reaction of stabilized sulfonium ylides 1a-f
to C-60 provides a new high yield route to [6,6]-methanofullerenes. Th
e rates of reaction differ with the nucleophilicity of the ylides.