4-Acetoxyphenylboronic acid is widely used in organic synthesis, particularly in Suzuki-Miyaura cross-coupling reactions. This reaction is essential for creating carbon-carbon bonds, which are fundamental in the production of pharmaceuticals, agrochemicals, and advanced materials. The compound serves as a key intermediate in the synthesis of complex organic molecules, enabling the development of drugs and other bioactive compounds.

In medicinal chemistry, it is employed to design and synthesize potential drug candidates, especially in the development of enzyme inhibitors and receptor modulators. Its boronic acid group allows for selective interactions with biological targets, making it valuable in drug discovery and development processes.

Additionally, it finds applications in materials science, where it is used to modify polymers and create functional materials with specific properties. Its ability to form stable complexes with diols and other functional groups makes it useful in the development of sensors and diagnostic tools.

Overall, this compound plays a significant role in advancing research and innovation across various scientific fields.