title: Oxidative electrochemical aryl C-C coupling of spiropyrans.
abstract: The isolation and definitive assignment of the species formed upon electrochemical oxidation of nitro-spiropyran (SP) is reported. The oxidative aryl C-C coupling at the indoline moiety of the radical cation to form covalent dimers of the ring-closed form is demonstrated. The coupling is blocked with a methyl substituent para to the indoline nitrogen.
authors.affiliation: Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands.
authors.forename: Oleksii
authors.initials: O
authors.lastname: Ivashenko
authors.forename: Jochem T
authors.initials: JT
authors.lastname: van Herpt
authors.forename: Petra
authors.initials: P
authors.lastname: Rudolf
authors.forename: Ben L
authors.initials: BL
authors.lastname: Feringa
authors.forename: Wesley R
authors.initials: WR
authors.lastname: Browne