First synthesis of ring-B C60-substituted derivatives of N,N-(tetrachlorophthaloyl)dehydroabietylamine

A new route to ring-B C60-substituted derivatives of N,N-(tetrachlorophthaloyl) dehydroabietylamine from dehydroabietylamine was reported. This advance was used to achieve the first synthesis of methanofullerene derivatives 14-17 and dehydroabietylamine derivatives 2-13. NMR spectroscopy unambiguously proved that the methanofullerene derivatives were C1 symmetric structures with a 6,6-junction.