When a highly electron-rich alkene such as the given 4-methoxystyrene derivative is brominated, trans- and cis-dibromide are produced in approximately equal amounts. Explain this observation.

Identify the products for the given reaction and indicate the stereoisomers formed, if any.

In the following reaction, assuming that one equivalent of bromine is employed, determine the major product(s).

How can the compound shown below be prepared from an alkene?

Starting with an alkene, how can you synthesize the following compound?

Halogenation reactions of alkenes proceed via the halonium ion mechanism and form the anti-addition product. However, a mixture of the cis and trans isomers formed in the reaction shown below. Propose a reaction mechanism for the formation of the products and explain why the reaction is not stereospecific.