3,3-Dimethylallyl (prenyl) building block group, useful in terpene synthesis. For use as an alkylating agent, see, e.g.: Org. Synth. Coll., 8, 381 (1993).
In the presence of the hindered base lithium 2,2,6,6-tetramethylpiperidide (LTMP) forms a carbenoid species which reacts with alkenes to provide vinylcyclopropenes: Synlett, 647 (1991).