Cleavage of 4-nitrophenyl diphenyl phosphate by isomeric quaternary pyridinium ketoximes - How can structure and lipophilicity of functional surfactants influence their reactivity in micelles and microemulsions?

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F06%3A00016921" target="_blank" >RIV/60461373:22310/06:00016921 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Cleavage of 4-nitrophenyl diphenyl phosphate by isomeric quaternary pyridinium ketoximes - How can structure and lipophilicity of functional surfactants influence their reactivity in micelles and microemulsions?

Original language description

Amphiphilic pyridinium ketoximes 4-[1-(hydroxyimino)alkyl]-1-methylpyridinium bromides (1) and 1-alkyl-4-[1-(hydroxyimino)ethyl]pyridinium bromides (2) are isomeric cationic surfactants bearing the nucleophilic hydroxyimino group. They differ in the position of the nucleophilic function relative to polar head group and hydrophobic alkyl chain. The 4-nitrophenyl diphenyl phosphate (PNPDPP) cleavage by the oximate anions generated from 1 and 2 was used as a model reaction for the investigation of the influence of the structure and lipophilicity of functional surfactants on their reactivity in micelles and microemulsions. The investigation of the model reaction in cationic micelles of hexadecyltrimethylammonium bromide (CTAB), in non-ionic micelles (Triton X-100 and Brij 35) and in o/w microemulsion (isooctane/phosphate buffer/CTAB and butan-1-ol) has revealed that it is the lipophilicity which is the most important factor influencing the localization and reactivity of functional surfacta

Czech name

Štěpení 4-nitrofenyl-difenyl-fosfátu izomerními kvarterními pyridiniovými ketoximy - Jak může struktura a lipofilita funkcionalizovaného tenzidu ovlivnit jejich reaktivitu v micelách a mikroemulzích?

Czech description

Amfifilní pyridiniové ketoximy 4-[1-(hydroxyimino)alkyl]-1-methylpyridinium bromid (1) a 1-alkyl-4-[1-(hydroxyimino)ethyl]pyridinium bromid (2) jsou izomerní pyridiniové ketoximy nesoucí nukleofilní hydroxyimino skupinu. Liší se pozicí nukleofilní skupiny vzhledem k polární skupině a hydrofobnímu alkylovému řetězci. Bylo studováno štěpení 4-nitrofenyl-difenyl-fosfátu účinkem oximátového iontu generovaného ze sloučenin 1 a 2 jako modelová reakce pro studium vlivu struktury a lipofility funkcionalizovaných tenzidů na jejich reaktivitu v micelách a mikroemulzích.

Type

J_x - 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/GA203%2F04%2F0488" target="_blank" >GA203/04/0488: Phase interface properties in nanoaggregates and their influence on chemical reactivity</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2006

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Collection of Czechoslovak Chemical Communications

ISSN

0010-0765

e-ISSN

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Volume of the periodical

71

Issue of the periodical within the volume

12

Country of publishing house

CZ - CZECH REPUBLIC

Number of pages

17

Pages from-to

1642-1658

UT code for WoS article

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EID of the result in the Scopus database

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