Fullerene-Attached Polymeric Homogeneous/Heterogeneous Photoactivators for Visible-Light-Induced CuAAC Click Reactions

In this work, a visible-light-induced copper­(I)-catalyzed azide–alkyne cycloaddition (CuAAC) click reaction via an electron transfer reaction employing fullerene (C₆₀) containing linear polystyrene and network polymer as homogeneous and heterogeneous activators, PS-C₆₀ and Gel-C₆₀, respectively, is described. Various low molar mass organic and polymeric azide and alkyne compounds are used to conduct the click reaction, and almost quantitative yields are attained. Compared to the bare C₆₀, the polymers with C₆₀ units exhibited a much higher promoting effect to catalyze CuAAC reactions