Show how you would use bromination followed by amination to synthesize the following amino acids.
(b) leucine

Bromination is a chemical reaction that involves the addition of bromine to a compound, typically an alkene or an aromatic ring. This process can introduce bromine atoms into organic molecules, which can later be substituted or transformed into other functional groups. In the context of amino acid synthesis, bromination can serve as a key step to modify a precursor compound, making it more reactive for subsequent reactions.

Amination refers to the process of introducing an amino group (-NH2) into a molecule. This reaction is crucial in organic synthesis, particularly for the formation of amino acids, as it allows for the conversion of halogenated compounds (like those produced by bromination) into amines. The choice of amination method can influence the final structure and properties of the synthesized amino acid, such as leucine.

The synthesis of amino acids involves a series of chemical reactions that transform simple organic compounds into more complex structures containing both amine and carboxylic acid functional groups. Understanding the specific pathways and reactions, such as bromination followed by amination, is essential for creating amino acids like leucine. This process often requires knowledge of stereochemistry and functional group transformations to ensure the correct amino acid is produced.