[2+2]环加成反应是对C60进行化学修饰的重要反应之一,重点从[2+2]环加成的典型反应、主要试剂及反应机理等方面进行了综述.
[2+2] cycloaddition plays an important role in [60]fullerene chemistry. C60 can undergo this reaction with a series of compounds containing unsaturated bonds, such as alkyne, alkene and their derivatives. In addition, some polymerizations of C60 also follow this route. In this review the main emphasis is on the three following aspects: classic reaction, the main reagent as well as the reaction mechanism.