Synthesis of C_3 Benzol,2-e:3,4-e':5,6-e'tribenzolacephenanthrylenes (Crushed Fullerene Derivatives)by Intramolecular Palladium-Catalyzed Arylation

摘要

The C_(60)polyarenes 4,5,18a,and 18b have been synthesized from trux-ene by triple alkylation at C5,CIO,and C15 followed by a palladium-catalyzed intramolecular arylation.The synthesis of "crushed fullerene"C_(60)H_(30)(2)is the most efficient reported to date and proceeds in 33 overall yield.