[2+1] Cycloaddition of Nitrene onto C60 Revisited:Interconversion between an Aziridinofullerene and an Azafulleroid

摘要

It is known that organic azides react with a [6,6] bond of C60 through a 1,3-dipolar [3+2] cycloaddition to afford triazo-lines.Thermolysis of a triazoline,followed by concomitant loss of nitrogen,gives rise to a [l,6]azafulleroid 1 and a [1,2]aziridinofullerene 2 (Scheme 1).