Soil metabolism of the herbicide isoxaben in winter wheat crops was written by Rouchaud, Jean;Gustin, Fabrice;Callens, Dany;Van Himme, Michel;Bulcke, Robert. And the article was included in Journal of Agricultural and Food Chemistry in 1993.HPLC of Formula: 14678-05-8 This article mentions the following:
Winter wheat fields were treated with the herbicide isoxaben after sowing. Trials were made in 1990-1991 and 1991-1992. The main isoxaben soil metabolite was demethoxyisoxaben (N-[3-(1-ethyl-1-methylpropyl)isoxazol-5-yl]-2-hydroxy-6-methoxybenzamide), i.e., the monodemethoxylation product of isoxaben. 5-Isoxazolone (3-(1-ethyl-1-methylpropyl)isoxazolin-5-one) was the second main isoxaben metabolite. When 5-aminoisoxazole (5-amino-3-(1-ethyl-1-methylpropyl)isoxazole) was detected in soil, it always was at very low concentrations It never accumulated in soil; 4 mo before winter wheat harvest, it could not be detected in soil. Benzamides 2,6-dimethoxybenzamide and 2-hydroxy-6-methoxybenzamide and 2,6-dimethoxybenzoic acid also were detected in soil. Organic fertilizer treatments increased isoxaben soil persistence. At the crop’s end, their effects, however, progressively disappeared, the soil residues of isoxaben and of its metabolites becoming very low and similar in the organic fertilizer treated and untreated plots. 5-Aminoisoxazole was not detected. Thus, isoxaben was soil-metabolized into nontoxic products, unable to generate toxic ones, during the wheat crops whose soil had been treated or not treated with organic fertilizers. In the experiment, the researchers used many compounds, for example, Isoxazol-5-amine (cas: 14678-05-8HPLC of Formula: 14678-05-8).
Isoxazol-5-amine (cas: 14678-05-8) belongs to isoxazole derivatives.Synthetically, isoxazoles serve as valuable precursors for the construction of diverse molecules, including many natural products. The electrophilic cyclization of various 2-alkynone O-methyl oximes with a wide range of substrates such as ICl, I2, Br2, PhSeBr, etc. provides a variety of 3,4,5-trisubstituted isoxazoles in good to excellent yields.HPLC of Formula: 14678-05-8
Referemce:
Isoxazole – Wikipedia,
Isoxazole | C3H3NO – PubChem