How is 3-Buten-1-ylbenzene (CAS: 768-56-9) typically synthesized?

3-Buten-1-ylbenzene can be synthesized via a Friedel-Crafts alkylation reaction where 1-butenyl chloride is introduced into benzene in the presence of a Lewis acid catalyst, such as aluminum chloride. Alternatively, it can be produced by the alkylation of toluene with 1-butyne using a heterogeneous catalyst like platinum on a carrier. The yield and selectivity can be controlled by adjusting the reaction conditions and catalyst type.