Allyl(tert-butyl)dimethylsilane is an organosilicon compound utilized as a reagent in organic synthesis, particularly in allylsilylation reactions such as the Hosomi-Sakurai allylation. This enables the stereoselective addition of allyl groups to electrophiles like carbonyls under Lewis acid catalysis, aiding in the formation of carbon-carbon bonds essential for constructing complex molecules in pharmaceuticals, natural products, and fine chemicals. The presence of the bulky tert-butyl group enhances regioselectivity and steric control in these transformations. Furthermore, it acts as an intermediate for synthesizing advanced organosilicon materials, including functionalized silicones, polymers, and coatings with improved thermal and chemical stability.