Multifunctionalization of C70 at the two polar regions with a high regioselectivity via oxazolination and benzylation reactions

Abstract

C₇₀ multiadducts with a novel 1,2,3,4,41,56,57,58-configuration were prepared via oxazolination and benzylation reactions. The structures of the adducts were determined by single crystal X-ray diffraction and spectral characterization. The compounds exhibit a high LUMO level, and result in a high open-circuit voltage in devices with P3HT.