Boc-3,4-Difluoro-D-Phenylalanine is primarily used in peptide synthesis as a building block for creating modified peptides. Its protective Boc group ensures selective reactions during synthesis, while the difluoro substitution enhances the peptide's stability and bioavailability. This compound is particularly valuable in pharmaceutical research for developing drug candidates with improved metabolic resistance and binding affinity. It is also employed in studying enzyme-substrate interactions and designing peptide-based therapeutics targeting specific biological pathways. Additionally, its unique structure makes it useful in materials science for creating specialized peptide-based polymers.