Über Diels‐Alder ‐Reaktionen des C 60 ‐Fullerens Vorläufige Mitteilung

On Diels‐Alder Reactions of the C 60 ‐Fullerene We report on the regioselective [4+2] cycloaddition of Buckminsterfullerene C 60 ( 1 ) at room temperature with 2,3‐dimethylbuta‐1,3‐diene and with the monoterpene 7‐methyl‐3‐methylideneocta‐1,6‐diene (= myrcene) and on the spectroscopic characterization of the corresponding crystalling monoadducts 2 and 3 . According to these experiments, 1 acts as a reactive dienophile, which can be functionalized regioselectively under mild and controlled conditons.