title: Cyclodextrin nanosponge-sensitized enantiodifferentiating photoisomerization of cyclooctene and 1,3-cyclooctadiene.
abstract: Enantiodifferentiating geometrical photoisomerizations of (Z)-cyclooctene and (Z,Z)-1,3-cyclooctadiene were performed by using the pyromellitate-linked cyclodextrin network polymer, termed "cyclodextrin nanosponge (CDNS)", as a supramolecular sensitizing host. The photochirogenic behavior of the nanosponges incorporating β- or γ-cyclodextrin was significantly different from that reported for the conventional sensitizer-appended monomeric cyclodextrins, affording chiral (E)-cyclooctene and (E,Z)-cyclooctadiene in enantiomeric excesses critically dependent on the solution pH and solvent composition employed, revealing the active roles of chiral void spaces of CDNS in the photochirogenic reaction.
authors.affiliation: Department of Applied Chemistry and Center for Advanced Science and Innovation, Osaka University, 2-1 Yamada-oka, Suita 565-0871, Japan.
authors.forename: Wenting
authors.initials: W
authors.lastname: Liang
authors.forename: Cheng
authors.initials: C
authors.lastname: Yang
authors.forename: Masaki
authors.initials: M
authors.lastname: Nishijima
authors.forename: Gaku
authors.initials: G
authors.lastname: Fukuhara
authors.forename: Tadashi
authors.initials: T
authors.lastname: Mori
authors.forename: Andrea
authors.initials: A
authors.lastname: Mele
authors.forename: Franca
authors.initials: F
authors.lastname: Castiglione
authors.forename: Fabrizio
authors.initials: F
authors.lastname: Caldera
authors.forename: Francesco
authors.initials: F
authors.lastname: Trotta
authors.forename: Yoshihisa
authors.initials: Y
authors.lastname: Inoue