T. Hino et al., Synthesis of methano[60]fullerene derivatives: the fluoride ion-mediated reaction of [60]fullerene with silylated nucleophiles, TETRAHEDR L, 42(30), 2001, pp. 5065-5067
A new reaction of [60]fullerene with silylated nucleophiles is described. T
he cyclopropanation of [60]fullerene with silylated nucleophiles, such as s
ilyl ketene acetals. silyl ketene thioacetals. and silyl enol ethers, deriv
ed from alpha -halo carbonyl compounds, smoothly proceeded in the presence
of KF/18-crown-6 to give the corresponding methano[60]fullerene derivatives
in moderate to good yields. (C) 2001 Elsevier Science Ltd. All rights rese
rved.