Transformation of Herbicide Propachlor by an Agrochemical Thiourea
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چکیده
W E I Z H E N G , * , † , ‡ S C O T T R . Y A T E S , ‡ S H A R O N K . P A P I E R N I K , § A N D M I N G X I N G U O † , ‡ Department of Environmental Sciences, University of California, Riverside, California 92521, USDA-ARS, Soil Physics and Pesticides Research Unit, George E. Brown Jr. Salinity Laboratory, Riverside, California 92507, and USDA-ARS, North Central Soil Conservation Research Laboratory, Morris, Minnesota 56267
منابع مشابه
Transformation of herbicide propachlor by an agrochemical thiourea.
Propachlor and other chloroacetanilide herbicides are frequently detected contaminants of groundwater and surface water in agricultural regions. The purpose of this work was to develop a new approach to remove propachlor residues from the environment via chemical remediation by the nitrification inhibitor thiourea. The transformation processes of propachlor and thiourea mixed in aqueous solutio...
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Propachlor (2-chloro-N-isopropylacetanilide) is an acetamide herbicide used in preemergence. In this study, we isolated and characterized a soil bacterium, Acinetobacter strain BEM2, that was able to utilize this herbicide as the sole and limiting carbon source. Identification of the intermediates of propachlor degradation by this strain and characterization of new metabolites in the degradatio...
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Adsorption of the chloroacetanilide herbicides acetochlor, alachlor, metolachlor, and propachlor was determined on soils and soil components, and their structural differences were used to explain their sorptivity orders. On all soils and soil humic acids, adsorption decreased in the order: metolachlor > acetochlor > propachlor > alachlor. On Ca(2+)-saturated montmorillonite, the order changed t...
متن کامل2-Chloro-N-isopropyl-N-phenylacetamide
In the title compound, C(11)H(14)ClNO, the herbicide propachlor, there are significant differences between the three N-C bond lengths [N-C(carbon-yl) = 1.354 (3) Å, N-C(phen-yl) = 1.444 (2) Å and N-C(isoprop-yl) = 1.496 (3) Å], indicating the presence of π delocalization involving the carbonyl group. The N atom lies 0.074 (2) Å from the plane defined by the the three bonded C atoms.
متن کاملTheoretical Studies of Solvent Effects on the Electronic Properties of 1, 3-Bis [(Furan-2-yl) Methylene] Urea and Thiourea
The synthesis and characterization of 1, 3-bis [(furan-2-yl) methylene] urea (BFMU) and 1, 3-bis [furan-2-yl) methylene] thiourea (BFMT) have been reported by our research team. The effects of solvents polarity on their electronic transition energies (HOMO-LUMO) and associated qualitative structure activity relationship parameters (i.e. log P, ionization energies and global hardness) were inves...
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تاریخ انتشار 2004