Widely used in organic synthesis as a powerful reducing agent, especially in carbon-carbon bond-forming reactions. It promotes reductive couplings of carbonyl compounds, such as in the pinacol coupling and the reductive cyclization of diketones. It is also employed in the Barbier-type reactions, where it facilitates the formation of alcohols from carbonyls and alkyl halides under mild conditions. Its ability to mediate single-electron transfer processes makes it valuable for complex molecule synthesis, including natural products. Additionally, it finds use in dehalogenation reactions and the reduction of sulfoxides to sulfides.