title: A Rare and Exclusive Endoperoxide Photoproduct Derived from a Thiacalix[4]arene Crown-Shaped Derivative Bearing a 9,10-Substituted Anthracene Moiety.
abstract: A rare and exclusive endoperoxide photoproduct was quantitatively obtained from a thiacalix[4]arene crown-shaped derivative upon irradiation at λ=365 nm; the structure was unambiguously confirmed by (1) H/(13) C NMR spectroscopy and X-ray crystallography. The prerequisites for the formation of the endoperoxide photoproduct have also been discussed. Furthermore, the photochemical reaction rate could be greatly enhanced in the presence of the thiacalix[4]arene platform because it served as a host to capture oxygen.
authors.affiliation: Department of Applied Chemistry, Faculty of Science and Engineering, Saga University, Honjo-machi 1, Saga, 840-8502, Japan.
authors.forename: Jiang-Lin
authors.initials: JL
authors.lastname: Zhao
authors.affiliation: Department of Applied Chemistry, Faculty of Science and Engineering, Saga University, Honjo-machi 1, Saga, 840-8502, Japan.
authors.forename: Chong
authors.initials: C
authors.lastname: Wu
authors.affiliation: Department of Applied Chemistry, Faculty of Science and Engineering, Saga University, Honjo-machi 1, Saga, 840-8502, Japan.
authors.forename: Hirotsugu
authors.initials: H
authors.lastname: Tomiyasu
authors.affiliation: Department Key Laboratory of Macrocyclic and, Supramolecular Chemistry of Guizhou Province, Guizhou University, Guiyang, Guizhou, 550025, P.R. China.
authors.forename: Xi
authors.initials: X
authors.lastname: Zeng
authors.affiliation: Chemistry Department, Loughborough University, Loughborough, Leicestershire, LE11 3TU, UK.
authors.forename: Mark R J
authors.initials: MR
authors.lastname: Elsegood
authors.affiliation: Department of Chemistry, The University of Hull, Cottingham Road, Hull, Yorkshire, HU6 7RX, UK.
authors.forename: Carl
authors.initials: C
authors.lastname: Redshaw
authors.affiliation: Department of Applied Chemistry, Faculty of Science and Engineering, Saga University, Honjo-machi 1, Saga, 840-8502, Japan. yamatot@cc.saga-u.ac.jp.
authors.forename: Takehiko
authors.initials: T
authors.lastname: Yamato
keywords: anthracenes; cycloaddition; photochemistry; reaction mechanisms; thiacalixarenes