Mono-, Di-, and Tri-Hydroxylated Symmetrical Hexamethylcucurbit[3,3]uril and Allylated Derivatives

Graphical Three novel hydroxylated hexamethylcucurbit[3,3]urils (Q[ n ]s), namely {(OH)Me 6 Q[3,3], (OH) 2 Me 6 Q[3,3], and (OH) 3 Me 6 Q[3,3]} have been prepared by the parent symmetrical hexamethylcucurbit[3,3]uril (Me 6 Q[3,3]) through a photochemical method, and further chemical modification could afford novel supramolecular assemblies for new applications. Mono-, di, and tri-hydroxylated hexamethylcucurbit[3,3]urils (Q[ n ]s), {(OH)Me 6 Q[3,3], (OH) 2 Me 6 Q[3,3], and (OH) 3 Me 6 Q[3,3]}, have been prepared through a photochemical method whereby limited hydroxyl group(s) can be directly introduced on the parent symmetrical hexamethylcucurbit[3,3]uril (Me 6 Q[3,3]). These three hydroxylated Me 6 Q[3,3]s have been characterized by means of NMR, MS, and X-ray crystallographic techniques. Further chemical allylation of these hydroxylated Me 6 Q[3,3]s has also been performed.