How is bromozinc(1+);2-ethyl-1,3-dioxolane (CAS: 307531-83-5) typically synthesized?

Bromozinc(1+);2-ethyl-1,3-dioxolane (CAS: 307531-83-5) is typically synthesized by reacting zinc with 2-ethyl-1,3-dioxolane in the presence of bromine. The reaction is carried out in a non-aqueous solvent to promote the formation of the bromozinc(1+) complex, which then reacts with 2-ethyl-1,3-dioxolane to form the target compound. The yield is typically around 85%, with good selectivity towards the desired product.