How is 1,1-Bis(bromomethyl)cyclopropane (CAS: 29086-41-7) typically synthesized?

1,1-Bis(bromomethyl)cyclopropane is synthesized by reacting bromine with 1,1-dibromopropane in the presence of an acid catalyst. The reaction is typically conducted at room temperature, and the product is obtained with a good yield. The reaction involves the nucleophilic attack of bromide ions on the cyclopropane ring, leading to the formation of the desired product.