Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5278603 | Tetrahedron Letters | 2006 | 5 Pages |
Abstract
The chemiluminescence of 6-aryl-2-methylimidazo[1,2-a]pyrazin-3(7H)-ones (Cypridina luciferin analogues) in DMSO/1,1,3,3-tetramethylguanidine and in diglyme/acetate buffer was investigated. The results indicate that the reaction mechanism that produces a high chemiluminescence quantum yield involves a chemiexcitation process from a neutral dioxetanone intermediate possessing an electron-donating aryl group (ÏAr <â0.6) to the singlet-excited state of neutral acetamidopyrazine. This result may be applied to the reaction mechanism for Cypridina (Vargula) bioluminescence.
Related Topics
Physical Sciences and Engineering
Chemistry
Organic Chemistry
Authors
Yuto Takahashi, Hiroyuki Kondo, Shojiro Maki, Haruki Niwa, Hiroshi Ikeda, Takashi Hirano,