Used as a key reagent in cross-coupling reactions, particularly in Suzuki-Miyaura coupling, enabling the formation of carbon-carbon bonds in complex organic synthesis. Its strained cyclobutylidene structure enhances reactivity, making it valuable for introducing cyclobutyl groups into aromatic or heteroaromatic systems. Commonly applied in pharmaceutical and agrochemical research for building novel scaffolds with improved metabolic stability. Also utilized in materials science for synthesizing conjugated systems in organic electronics.