Hydrolysis of carboxylate and phosphate esters using monopyridinium oximes in cationic micellar media

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60162694%3AG44__%2F11%3A00002475" target="_blank" >RIV/60162694:G44__/11:00002475 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1002/kin.20590" target="_blank" >http://dx.doi.org/10.1002/kin.20590</a>
DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Hydrolysis of carboxylate and phosphate esters using monopyridinium oximes in cationic micellar media
Original language description
The reactions of p-nitrophenyl acetate (PNPA) with a series of monopyridinium oximes, viz. 2-PAM (2-hydroxyiminomethyl-1-methylpyridinium iodide), 3-PAM (3-hydroxyiminomethyl-1-methylpyridinium iodide), and 4-PAM (4-hydroxyiminomethyl-1-methylpyridiniumiodide) have been studied in the presence of cationic surfactants of same hydrophobic chain length (C(16)) within the concentration range of 0.5-6.0 mM at pH 8.0 under the pseudo-first-order condition. The observed rate constant (k(obs)) increases with increasing surfactant concentration culminating into a maximum, and this has been analyzed in detail following the concepts of micellar catalysis. The structure-activity relationship of the investigated oximes has been discussed, and 2-PAM was found to bethe most reactive among all the three investigated oximes for the cleavage of PNPA. Esterolytic decomposition of p-nitrophenyldiphenyl phosphate with oximate ions (-CH=NO(-)) was followed in cetyltrimethylammonium bromide micelles at pH
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
CC - Organic chemistry
OECD FORD branch
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Project
<a href="/en/project/OVUOFVZ200803" target="_blank" >OVUOFVZ200803: Development of novel decontaminants and disinfectants of skin based on micellar compounds</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2011
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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