The kinetics of the hydrolysis of imidacloprid were studied at diþ erent pH values and under various temperatures. Imidacloprid was found to be stable in acidic and neutral water, but readily hydrolysed in alkaline water. The main hydrolysis product was found to be 1-[ (6-chloro-3pyridinyl)methyl ]
Kinetics and Mechanism of the Alkaline Hydrolysis of 2,4-Dinitrophenyl 4′-Hydroxyphenylpropiolate
✍ Scribed by Giorgio Cevasco; Roberto Pardini; Sergio Thea
- Publisher
- John Wiley and Sons
- Year
- 1998
- Tongue
- English
- Weight
- 342 KB
- Volume
- 1998
- Category
- Article
- ISSN
- 1434-193X
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✦ Synopsis
The alkaline hydrolysis of the title ester was studied in 40% dioxane/water (v/v) solutions. Kinetic data, reactivity comparisons with model substrates and activation parameters ap-
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The title reactions are subjected to a kinetic analysis in ethanol-water, at 44 wt% ionic strength 0.2 (KCl). With a large excess of amine over the substrate, pseudo-first-25.0ЊC, order rate coefficients are obtained, which are linearly dependent on the amine concen-(k ) obs tration. The nucleophili
Satisfactory kinetic determinations of several aliphatic 1,3-diols were difficult to obtain. Moreover the product distributions from each of these substrates suggest complex parallel mechanisms. However, the elimination kinetic of 2,4-dimethyl-2,4-pentanediol has been measured over the temperature r