Synthesis of 3′,3′-bis(hydroxymethyl)morpholino[5′,6′:1,9](C60-Ih)[5,6]fullerene by the oxidative addition reaction of tris(hydroxymethyl)aminomethane to C60 fullerene under the action of ultrasonic radiation

The ultrasonic induced oxidative addition reaction of C₆₀ fullerene to tris(hydroxymethyl)-aminomethane in a toluene—DMF solvent mixture in the presence of LiOH and Pb(OAc)₄ at room temperature in an aerobic environment gave 47% yield of the C₆₀ fullerene monoadduct containing in its structure a morpholine fragment annulated to the [60]fullerene core.