The chemoselective deprotection of a wide range of acetals and ketals in water is catalyzed by bismuth(III) iodide. Bismuth(III) compounds are remarkably nontoxic and hence are attractive as environmentally friendly catalysts.
Mohan, Ram; Bailey, Aaron; Baru, Ashvin; and Tashe, Kendall, "Environmentally Friendly Organic Synthesis Using Bismuth Compounds: Bismuth(III) Iodide Catalyzed Deprotection of Acetals in Water" (2008). Scholarship. 17.