title: Selective fluorometric detection of aromatic thiols by a chemosensor containing two electrophilic sites with different local softness.
abstract: A resorufin–dinitrophenyl ether conjugate (1) shows emission enhancement for aromatic thiols in aqueous media with a neutral–basic pH, while being nonemissive for aliphatic thiols. This is achieved by two electrophilic sites with different local softness on compound 1; the respective sites selectively react with aromatic or aliphatic thiolate anions.
authors.affiliation: Research Center for Solar Energy Chemistry, and Division of Chemical Engineering, Graduate School of Engineering Science, Osaka University, Toyonaka 560-8531, Japan. shiraish@cheng.es.osaka-u.ac.jp.
authors.forename: Yasuhiro
authors.initials: Y
authors.lastname: Shiraishi
authors.forename: Kohei
authors.initials: K
authors.lastname: Yamamoto
authors.forename: Shigehiro
authors.initials: S
authors.lastname: Sumiya
authors.forename: Takayuki
authors.initials: T
authors.lastname: Hirai
mesh_terms: D004136:Dinitrobenzenes / Q000737:chemistry; D005456:Fluorescent Dyes / Q000737:chemistry*; D006841:Hydrocarbons, Aromatic / Q000032:analysis*; D010078:Oxazines / Q000737:chemistry*; D013050:Spectrometry, Fluorescence; D013438:Sulfhydryl Compounds / Q000032:analysis*
chemical_list: D004136:Dinitrobenzenes; D005456:Fluorescent Dyes; D006841:Hydrocarbons, Aromatic; D010078:Oxazines; D013438:Sulfhydryl Compounds; C014180:resorufin