3-Allyloxyphenylboronic acid is primarily utilized in organic synthesis, particularly in Suzuki-Miyaura cross-coupling reactions. This reaction is pivotal for forming carbon-carbon bonds, enabling the synthesis of complex organic molecules, including pharmaceuticals, agrochemicals, and advanced materials. The compound’s boronic acid group acts as a key functional moiety, facilitating the coupling process with aryl halides or pseudohalides. Additionally, its allyloxy group offers versatility, allowing further chemical modifications or polymerization, making it valuable in designing functional polymers or coatings. Its applications extend to materials science, where it contributes to the development of sensors or catalysts due to its ability to interact with diols or other Lewis bases.