TITLE

Photoisomerization kinetics of trifloxystrobin

AUTHOR(S)
Banerjee, Kaushik; Ligon, Axel Patrick; Spiteller, Michael
PUB. DATE
August 2005
SOURCE
Analytical & Bioanalytical Chemistry;Aug2005, Vol. 382 Issue 7, p1527
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The photoisomerization kinetics of trifloxystrobin (TFS) in acetone under artificial sunlight is reported. HPLC analysis showed the TFS, a strobilurine fungicide of EE conformation, was converted into an equilibrium mixture of four isomers after illumination for 7 h. The isomers were identified as EZ, EE, ZZ, and ZE and were separated in the crystalline form by preparative HPLC and characterized by use of a variety of spectroscopic techniques. The quantum yield and reaction constants for the isomerization reactions were determined. The detailed spectral features of the individual isomers measured by UV, IR, Raman, NMR and mass spectroscopy are presented and compared. The spectra of the isomers were found to be very characteristic, with good analytical significance.
ACCESSION #
17719853

 

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