Piperazine additions to C₆₀—a facile approach to fullerene substitution

Abstract

A range of fullerene monoadducts can be generated via the photochemical reaction of piperazine derivatives with C60. Addend functionality can also be efficiently incorporated by transformation of the hydroxyl-substituted adduct prepared in this fashion. Reaction yields and process simplicity compete with current standard procedures for fullerene mono-functionalisation.