Unusual Course of the p-Nitrophenyl Phosphate Esters Cleavage by 3-Hydroxyiminoalkylpyridinium Salts in Micellar Solutions

Two types of amphiphilic quanternary 3-pyridinium ketoximes with different position of the hydrophobic alkyl chain were synthesized and tested as hydrolytic micellar catalysts. A considerable positive deviation from the expected first-order curve was observed in the absorbance vs time plot when p-ni...

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Veröffentlicht in:Chemistry letters 1998-07, Vol.27 (7), p.649-650
Hauptverfasser: Kotoucová, Hana, Mazac, Jirí, Cibulka, Radek, Hampl, František, Liška, František
Format: Artikel
Sprache:eng
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Zusammenfassung:Two types of amphiphilic quanternary 3-pyridinium ketoximes with different position of the hydrophobic alkyl chain were synthesized and tested as hydrolytic micellar catalysts. A considerable positive deviation from the expected first-order curve was observed in the absorbance vs time plot when p-nitrophenyl diphenyl phosphate and p-nitrophenyl diethyl phosphate were hydrolyzed in micellar solutions of the prepared ketoximes under pseudo-first-order reaction conditions.
ISSN:0366-7022
1348-0715
DOI:10.1246/cl.1998.649