Chemiluminescence of Organic Peroxides: Intramolecular Electron-Exchange Luminescence from a Secondary Perester
The reaction of an aminocoumarincarboxylic acid chloride (Coumarin 343) with 1-phenethyl hydroperoxide results in light emission that is easily detected with the unaided eye.This reaction proceeds through a secondary perester intermediate.Intramolecular electron exchange, modeled after the analogous process in the bioluminescence of the firefly, is proposed as the mechanism for light generation.Attempts to carry out this reaction under conditions where the coumarin acid is recycled were not successful.
Rational design and efficient synthesis of a fluorescent-labeled jasmonate
A fluorescent-labeled jasmonate was rationally designed based on examination of the model of interaction between the jasmonate and its receptor. An efficient synthetic route has been developed for this molecule. The biological activity of this fluorescent probe was retained which was similar to that of the methyl jasmonate as examined by root growth inhibition bioassay. This fluorescent probe will greatly facilitate biological studies of jasmonates through fluorescent imaging.