title: Singlet oxygen generation from lophine hydroperoxides.
abstract: Singlet oxygen was detected from the reaction of lophine hydroperoxides 2 in the presence of 1,3-diphenyl-isobenzofuran as a singlet oxygen detector. In order to examine the substituent effect on the formation of (1)O(2), 2-(p-substituted phenyl) lophine peroxides 2a-c were tested. It was found that an electron-attracting group contributed to the efficient formation of (1)O(2) (80% for a NO(2) group), while an electron-donating group enhanced the efficiency of chemiluminescence.
authors.affiliation: Department of Chemistry, Faculty of Science, Okayama University, 700-8530 Okayama, Japan. kimuram@cc.okayama-u.ac.jp
authors.forename: M
authors.initials: M
authors.lastname: Kimura
authors.forename: G H
authors.initials: GH
authors.lastname: Lu
authors.forename: H
authors.initials: H
authors.lastname: Nishigawa
authors.forename: Z Q
authors.initials: ZQ
authors.lastname: Zhang
authors.forename: Z Z
authors.initials: ZZ
authors.lastname: Hu
mesh_terms: D001572:Benzofurans / Q000737:chemistry*; D002851:Chromatography, High Pressure Liquid; D007093:Imidazoles / Q000737:chemistry*; D015394:Molecular Structure; D010545:Peroxides / Q000737:chemistry*; D026082:Singlet Oxygen / Q000032:analysis* / Q000737:chemistry*
chemical_list: D001572:Benzofurans; D007093:Imidazoles; D010545:Peroxides; C521089:lophine hydroperoxide; D026082:Singlet Oxygen; C011238:1,3-diphenylisobenzofuran; C107378:lophine