## Abstract Les paramètres d'__Arrhenius__ de l'hydrolyse par la soude caustique, dans l'éthanol à 85%, des esters suivants: benzoate d'éthyle, naphtoates‐1 et ‐2 d'éthyle, phénanthroates‐9, ‐2 et ‐3 d'éthyle et anthroate‐9 d'éthyle ont été déterminés.
Etudes cinétiques dans le domaine des dérivés polycycliques aromatiques VIII. Alcoolyse des chlorures d'acides d'hydrocarbures polycycliques aromatiques condensés
✍ Scribed by G. Geuskens; M. Planchon; J. Nasielski; R. H. Martin
- Publisher
- John Wiley and Sons
- Year
- 1959
- Tongue
- German
- Weight
- 332 KB
- Volume
- 42
- Category
- Article
- ISSN
- 0018-019X
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✦ Synopsis
Abstract
ARRHENIUS parameters have been determined for the solvolysis of a series of acid chlorides of polycyclic aromatic hydrocarbons in methanol‐acetone (1:1) (Table 11). The fact that the solvolyses were carried out at an average temperature (275°K)situated above the isokinetic temperature (estimated to be 220°K) explains why the sequence observed is the reverse of the one obtained in the case of the alkaline hydrolysis of the corresponding esters.
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## Abstract The following reactions have been studied kinetically: 1. Solvolysis of 1‐, 3‐ and 8‐chloromethylfluoranthene with (a) water 20,5%‐dioxane 79,5%, (b) water 6,1%‐dioxane 39,8%‐formic acid 54,1%.
## Abstract ARRHENIUS parameters of the alkaline hydrolysis of ethyl 3,4‐benzophenanthrene‐1‐carboxylate in water (15%) ‐ ethanol (85%) have been determined: E = 16,39 kcal, log PZ = 8,66, k~2~,(25°C) =4,40.10^−4^.These results indicate that the rate constant of this reaction is not affected by the
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