(2-((O-tolylamino)methyl)phenyl)boronic acid is primarily used in organic synthesis, particularly in Suzuki-Miyaura cross-coupling reactions. This reaction is widely employed in the pharmaceutical and materials science industries to form carbon-carbon bonds, enabling the synthesis of complex organic molecules. The boronic acid group in the compound acts as a key reagent, facilitating the coupling of aryl or vinyl halides with aryl or vinyl boronic acids to produce biaryl or styrene derivatives. These derivatives are essential intermediates in the production of drugs, agrochemicals, and advanced materials. Additionally, the compound's structure, featuring a boronic acid moiety, makes it useful in the development of sensors and probes for detecting biological molecules, owing to its ability to interact with diols and other functional groups. Its application in medicinal chemistry also extends to the design of enzyme inhibitors and receptor ligands, where the boronic acid group can mimic transition states or interact with active sites.