(11bR)-3-((2-(3H-dinaphtho[2,1-c:1′,2′-e]azepin-4(5H)-yl)cyclohexyl)amino)-4-((3,5-bis(trifluoromethyl)phenyl)amino)cyclobut-3-ene-1,2-dione is a chiral squaramides organocatalyst that has been intensively investigated within the area of molecular recognition because of their strong hydrogen-bonding activity.

(11bR)​-3,​5-​Dihydro-spiro[4H-​cyclohepta[2,​1-​a:3,​4-​a’]​dinaphthalene-​4,​1′-​[2,​4]​cyclopentadiene]​-​2,​6-​diol is a chiral catalyst that has been intensively applied in asymmetric reactions with high atom economy.

(11bR)-4-(2-Hydroxyphenyl)-2,6-diphenyldinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepine 4-oxide can be prepared to be used as a catalyst for various reactions.

(11bR)-4-Hydroxy-2,6-bis([1,1′:3′,1”-terphenyl]-5′-yl)-4-oxide-dinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepin is a chiral phosphoric acid catalyst for a variety of enantioselective transformations, especially for carbon-carbon and carbon-heteroatom bond-forming reactions.

(11bR)-4-Hydroxy-2,6-bis(2,3,4,5,6-pentafluorophenyl)-4-oxide-dinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepin is a chiral phosphoric acid catalyst for a variety of enantioselective transformations, especially for carbon-carbon and carbon-heteroatom bond-forming reactions.