Application
Indium(III) bromide is an off-white to greenish powder that serves as a regio-, chemo-, and stereoselective Lewis acid catalyst in organic synthesis. Its primary purpose is to function as a water-tolerant Lewis acid, efficiently catalyzing reactions such as the three-component coupling of β-keto esters, aldehydes, and urea (or thiourea) to produce dihydropyrimidinones. Additionally, it facilitates the production of dithioacetals from the reaction of unactivated alkynes with thiols. Beyond its role in organic synthesis, indium is also integral in fields like optics and microelectronics, particularly in the development of high-performing solar cells that leverage semiconductor technology.