Boron tribromide dimethyl sulfide complex is widely used in organic synthesis, particularly for deprotection of methyl ethers. It effectively cleaves methyl ethers to yield the corresponding alcohols, making it valuable in the synthesis of complex organic molecules. The complex is also employed in the preparation of boron-containing compounds, which are essential in various catalytic processes. Additionally, it serves as a Lewis acid in reactions that require mild and controlled conditions, such as the formation of carbon-carbon bonds. Its application extends to the pharmaceutical industry, where it aids in the production of active pharmaceutical intermediates. The dimethyl sulfide component enhances the stability and handling of the reagent, making it a practical choice for laboratory and industrial use.