1-Phenylethyl chloroformate is widely used in organic synthesis as a reagent for the protection of amines. It is particularly effective in the formation of carbamates, which are crucial intermediates in the production of pharmaceuticals and agrochemicals. The compound is also employed in peptide synthesis to protect amino groups, ensuring selective reactions at other functional sites. Additionally, it serves as a chiral derivatizing agent, aiding in the resolution of enantiomers for analytical purposes. Its application extends to the preparation of specialty chemicals, where it facilitates the introduction of the phenylethyl group into target molecules.