Transformation of the Herbicide Sulcotrione into a Root Growth Enhancer Compound by Sequential Photolysis and Hydrolysis

Goujon, Eric; Maruel, Sandra; Richard, Claire; Goupil, Pascale; Ledoigt, Gérard

doi:10.1021/acs.jafc.5b05500

Cited by 6 publications

(2 citation statements)

References 35 publications

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“…Target photolysis products, compounds 2 , 3 , 5 , and 3-{3-[2-chloro-4-(methanesulfonyl)phenyl]-3-oxopropanoyl}cyclopentane-1-carboxylic acid, were selected to reflect known sulcotrione photolysis products. ,, Of these, compounds 2 , 3 , and 5 were observed in photolysis samples (Figure and Table ); however, 3-{3-[2-chloro-4-(methanesulfonyl)phenyl]-3-oxopropanoyl}cyclopentane-1-carboxylic acid was not detected. Product yields are reported in Table .…”

Section: Resultsmentioning

confidence: 99%

Aqueous Photolysis of Benzobicyclon Hydrolysate

Williams¹,

Kaur²,

McFall³

et al. 2018

J. Agric. Food Chem.

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Benzobicyclon [3-(2-chloro-4-(methylsulfonyl)benzoyl)-2-phenylthiobicyclo[3.2.1]oct-2-en-4-one] is a pro-herbicide used against resistant weeds in California rice fields. Persistence of its active product, benzobicyclon hydrolysate, is of concern. As an acidic herbicide, the neutral species photolyzed faster than the more predominant anionic species ( t = 1 and 320 h, respectively; natural sunlight), from a >10-fold difference in the quantum yield. Dissolved organic matter in natural waters reduced direct photolysis and increased indirect photolysis compared to high-purity water. Light attenuation appears significant in rice field water and can slow photolysis. These results, used in the pesticides in flooded applications model with other experimental properties, indicate that a floodwater hold time of 20 days could be sufficient for dissipation of the majority of initial aqueous benzobicyclon hydrolysate prior to release. However, soil recalcitrance of both compounds will keep aqueous benzobicyclon hydrolysate levels constant months after benzobicyclon application.

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Section: Resultsmentioning

confidence: 99%

Aqueous Photolysis of Benzobicyclon Hydrolysate

Williams¹,

Kaur²,

McFall³

et al. 2018

J. Agric. Food Chem.

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“…Sulcotrione is a well-recognized triketone “eco-friendly” herbicide that is used on wide-leafed agricultural plants. However, recent reports on the possible health and environmental effects problematize their use and require systematic monitoring [ 14 , 15 ]. Quality control of herbicide content in distributed food requires prompt, accurate methods for its quantification.…”

Section: Introductionmentioning

confidence: 99%

Microspherical Titanium-Phosphorus Double Oxide: Hierarchical Structure Development for Sensing Applications

Korina

Abramyan

Bol’shakov

et al. 2023

Sensors

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Stable, water-soluble titanium complexed with mandelic acid was used as a precursor for titanium phosphorus double oxide obtained in hydrothermal conditions in the presence of phosphoric acid. Surprisingly, hydrolysis of organic complexes provided a microstructured sphere with narrow size distribution, low aggregation and a small fraction of morphological irregularities. Obtained microspheres had a complex structure comprised of flakes, whose size could be manipulated with temperature conditions. Samples were found to be electrochemically active against sulcotrione, a well-recognized herbicide. Electrochemical sensors based on the synthesized microspheres were successfully adapted for natural water reservoir analysis and exhibited low levels of detection of 0.61 µM, limit of quantification of 1.86 µM, wide dynamic linear range from 2 to 200 µM, good selectivity, excellent reproducibility and in-time stability.

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