(4-methoxynaphthalen-1-yl)boronic acid is primarily used in organic synthesis, particularly in Suzuki-Miyaura cross-coupling reactions. This reaction is widely employed to form carbon-carbon bonds, making it valuable in the synthesis of complex organic molecules, including pharmaceuticals, agrochemicals, and materials. The compound serves as a key intermediate in the production of various bioactive compounds and functional materials due to its boronic acid group, which facilitates efficient coupling with aryl halides or triflates. Additionally, it is utilized in the development of fluorescent probes and sensors, leveraging its naphthalene moiety for optical applications. Its role in medicinal chemistry is also notable, as it contributes to the synthesis of drug candidates targeting specific biological pathways.