Selective syntheses of novel polyether fullerene multiple adducts.

摘要: We have applied a modified macrocyclic tether approach to control multiple additions C60. The technique of 3He NMR was used confirm the selective formation specific C60 adducts by approach. An oligoglycol as flexible linker produce polyether-linked malonates 5, 6, 8, and 9 under solid−liquid PTC (phase-transfer-catalysis) conditions. single tris-adduct, 3, from malonate 1 3He@C60 proven NMR. Similarly, polyether 5 gave bis-adduct 10 selectively, while reaction with 8 bis-adducts 11 12. A similar process 6 tris-adduct 13 high selectivity well. Saponification these gives corresponding polyacids that are potentially useful in biological applications. Macrocyclic fullerenes new class ionophores, which could be intere...