Quinolin-4-ylboronic acid is widely used in organic synthesis, particularly in Suzuki-Miyaura cross-coupling reactions. This reaction is essential for forming carbon-carbon bonds, enabling the creation of complex organic molecules. It is particularly valuable in pharmaceutical research for synthesizing biologically active compounds, including potential drug candidates. Additionally, it serves as a building block in the development of materials science, contributing to the creation of advanced polymers and organic electronic materials. Its boronic acid group also makes it useful in sensor development, where it can interact with diols and other analytes, aiding in the detection of sugars and other biomolecules.