(11bS)-2,6-Bis(4-(tert-butyl)-2,6-diisopropylphenyl)-4-hydroxydinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepine 4-oxide is a chiral phosphoric acid catalyst for a variety of enantioselective transformations, especially for carbon-carbon and carbon-heteroatom bond-forming reactions.