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Pal, S.K. ; Moza, P.N. ; Kettrup, A.

Photochemistry of pendimethalin.

J. Agric. Food Chem. 39, 797-800 (1991)
DOI
Open Access Green as soon as Postprint is submitted to ZB.
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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Publication type Article: Journal article
Document type Scientific Article
ISSN (print) / ISBN 0021-8561
e-ISSN 1520-5118
Journal Journal of Agricultural and Food Chemistry
Quellenangaben Volume: 39, Issue: 4, Pages: 797-800 Article Number: , Supplement: ,
Publisher American Chemical Society (ACS)
Reviewing status Peer reviewed
Institute(s) PPM-MEX-Molecular EXposomics (MEX)
Institute of Ecological Chemistry (IOEC)