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Photochemistry of pendimethalin.
J. Agric. Food Chem. 39, 797-800 (1991)
Pendimethalin decomposed readily when irradiated in methanol at wavelengths λ ≥ 250 nm to form a number of products. In addition to the N-dealkylated intermediates, the principal products were 2-methyl-4,6-dinitro-5-[(l-ethylpropyl)amino]benzaldehydeand2-methyl-4,6- dinitro-5-[(l-ethylpropyl)amino]benz;yl alcohol. The decomposition at sunlight wavelengths (λ ≥ 290 nm) in methanol is relatively slower and also leads to N-dealkylation and arylmethyl oxidation. Neither acid nor alkali has an effect on the rate of disappearance of pendimethalin. At acidic pH N-dealkylation takes place, whereas at alkaline pH one of the NO2 groups is replaced by an OH group.
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Publikationstyp
Artikel: Journalartikel
Dokumenttyp
Wissenschaftlicher Artikel
Sprache
englisch
Veröffentlichungsjahr
1991
HGF-Berichtsjahr
0
ISSN (print) / ISBN
0021-8561
e-ISSN
1520-5118
Zeitschrift
Journal of Agricultural and Food Chemistry
Quellenangaben
Band: 39,
Heft: 4,
Seiten: 797-800
Verlag
American Chemical Society (ACS)
Begutachtungsstatus
Peer reviewed
Institut(e)
PPM-MEX-Molecular EXposomics (MEX)
Institute of Ecological Chemistry (IOEC)
Institute of Ecological Chemistry (IOEC)
POF Topic(s)
30202 - Environmental Health
Forschungsfeld(er)
Environmental Sciences
PSP-Element(e)
G-509100-001
Scopus ID
0001276510
Erfassungsdatum
1991-12-30