2077-99-8Relevant academic research and scientific papers
Trifluralin: Photolysis under sunlight conditions and reaction with HO{radical dot} radicals
Le Person,Mellouki,Munoz,Borras,Martin-Reviejo,Wirtz
, p. 376 - 383 (2007)
The gas phase atmospheric degradation of trifluralin (a widely used herbicide) has been investigated at the EUPHORE facility. Its photolysis has been studied under sunlight conditions and its reaction rate constant with HO{radical dot} radicals was measured using the relative rate method. Using 1,3,5-trimethylbenzene as reference compound, the rate constant of HO{radical dot} reaction with trifluralin was obtained to be kHO{radical dot} = (1.7 ± 0.4) × 10- 11 cm3 molecule s-1 at (300 ± 5) K and atmospheric pressure. The mean photolysis rate measured under solar radiation was Jtrifluralin = (1.2 ± 0.5) × 10-3 s-1(JNO2 = 8 × 10- 3 s- 1) . The photolysis of trifluralin was found to generate organic aerosols with a yield of (20 ± 10)%. The data obtained enabled us to discuss the atmospheric fate of trifluralin in the gas phase.
The influence of steric effects on the kinetics and mechanism of SNAr reactions of 1-phenoxy-nitrobenzenes with aliphatic primary amines in acetonitrile
Isanbor, Chukwuemeka
, (2017/09/30)
Rate constants are reported for the reactions of 1-phenoxy-dinitrobenzenes, 3, 1-phenoxy-dinitrotrifluoromethylbenzenes, 4, with n-propylamine, and 1-methylheptylamine in acetonitrile as solvent. The results are compared with results reported previously f
Synthesis and evaluation of dinitroanilines for treatment of cryptosporidiosis
Benbow, John W.,Bernberg, Erin L.,Korda, Anna,Mead, Jan R.
, p. 339 - 343 (2007/10/03)
The efficacy of a series of dinitroaniline herbicide derivatives for the treatment of Cryptosporidium parvum infections has been studied. The lead compounds oryzalin (compound 1) and trifluralin (compound 2) have low water solubility (3 ppm) which was alleged to be a major contributor to their poor pharmacokinetic availability. Derivatives of compounds 1 and 2 were synthesized. In these derivatives the functionality at the C-1 amine position or the C-4 position was substituted with groups with various hydrophilicities to determine if a direct relation existed between water solubility and overall activity. The chlorinated precursors of these derivatives were also examined and were found to be less active in the C. parvum assays, a result in direct contrast to earlier work with Leishmania. Enhanced water solubility alone did not overcome the drug availability problem; however, several candidates with similar activities but with toxicities lower than those of the lead compounds were produced.
19F NMR as an Analytical Tool for Fluorinated Agrochemical Research
Mabury, Scott A.,Crosby, Donald G.
, p. 1845 - 1848 (2007/10/03)
19F NMR was utilized to monitor the photodegradation of trifluralin directly in NMR tubes without extraction, cleanup, concentration, or chromatographic separation.Dissipation curves were generated for the parent pesticide and degradation products, and the major products identified by addition of authentic standarts were α-α-α-trifluoro-2,6-dinitro-N-propyl-p-toluidine (II), α,α,α-trifluoro-2,6-dinitro-p-toluidine (III), and 2-ethyl-7-nitro-5-(trifluoromethyl)benzimidazole (VII).Numerous peaks were observed in the spectra that may represent labile intermediates not generally observed with other analytical techniques.Keywords: 19F NMR; trifluralin; photodegradation
Method for inhibiting the growth of tobacco suckers
-
, (2008/06/13)
The growth of tobacco suckers in tobacco plants is inhibited by applying to the tobacco plants an effective amount of a substituted 2,6-dinitroaniline alone or in combination with a surfactant.
