Synthesis of glycosyls fullerene [C70] under ultrasonic irradiation

The reaction of fullerene [C70] with 2′-azidoethyl 2,3,4,6-tetra-O-acetyl-α-d-mannopyranoside (2a) and 2′-azidoethyl 2,3,4,6-tetra-O-acetyl-β-d-galactopyranoside (2b) under ultrasonic irradiation cause the cycloaddition of 2′-azidoethyl glycosides to fullerene [C70] and lead to d-glycosyl fullerene [C70] derivatives 3a and 3b, respectively. The glycosyls fullerene [C70] were characterized by 1H and 13C NMR, UV–vis, FAB-MS, FT-IR spectra and were a 1:1 glycoside–fullerene [C70] adduct.