Dilithium reagent L-A and L-B adds on the exo-cyclic double bound on 6, 6-dimethyl-, 6-methyl-6-ethyl-,6-methyl-6-n-propylfulvehes and 6, 6-penta-methylene-fulvene.

• 1,4_丁基二锂、1,6-己基二锂同6,6-二甲基、6-甲基-6-乙基、6-甲基-6-正丙基和6,6-五甲基富烯发生加成反应。