3-Isopropylphenylboronic 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 production of pharmaceuticals, agrochemicals, and advanced materials. The compound acts as a key intermediate in the synthesis of complex organic molecules, including active pharmaceutical ingredients (APIs) and fine chemicals. Its boronic acid group facilitates the coupling with aryl halides or pseudohalides, enabling the creation of biaryl structures, which are common in many biologically active compounds. Additionally, it is utilized in the development of sensors and catalysts due to its ability to interact with various organic and inorganic substrates.