Neuvonen H
Department of Chemistry, University of Turku, Finland.
J Biolumin Chemilumin. 1997 Sep-Oct;12(5):241-8. doi: 10.1002/(SICI)1099-1271(199709/10)12:5<241::AID-BIO449>3.0.CO;2-3.
A mechanism is proposed for imidazole-catalysed peroxyoxalate chemiluminescence. The reaction model includes a sequential formation of 1-aroxalylimidazole and 1,1'-oxalyldiimidazole as light-producing reaction intermediates. The suggestion is supported by the kinetic data obtained for the reaction of imidazole with bis(4-nitrophenyl) oxalate and on the recently reported ability of 1,1'-oxalyldiimidazole to function as an efficient chemiluminescence reagent. The relative contributions of different catalytic pathways and hydrolytic side-reactions are discussed.
提出了一种咪唑催化过氧草酸酯化学发光的机制。该反应模型包括依次形成1-芳酰基咪唑和1,1'-草酰二咪唑作为发光反应中间体。咪唑与双(4-硝基苯基)草酸酯反应的动力学数据以及最近报道的1,1'-草酰二咪唑作为高效化学发光试剂的能力支持了这一观点。讨论了不同催化途径和水解副反应的相对贡献。
