Butylboronic 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 synthesis of complex organic molecules, including pharmaceuticals, agrochemicals, and advanced materials. Its role as a coupling partner makes it valuable in producing biaryl compounds, which are crucial in drug development and material science. Additionally, it is employed in the preparation of boron-containing polymers and as a reagent in the modification of organic compounds for research and industrial applications. Its versatility and stability make it a key component in modern synthetic chemistry.