Metallomicellar Hydrolytic Catalysts Containing Ligand Surfactants Derived from Alkyl Pyridin-2-yl Ketoxime

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Title:Metallomicellar Hydrolytic Catalysts Containing Ligand Surfactants Derived from Alkyl Pyridin-2-yl Ketoxime
Creators:
Cibulka, Radek
Dvořák, David
Hampl, František
Liška, František
Journal or Publication Title:
Collection of Czechoslovak Chemical Communications, 62, 8, pp. 1342-1354
Uncontrolled Keywords:Pyridine derivatives, Micellar catalysis, Ester hydrolysis, Ligand surfactant

Abstract

<i>N</i>-Hexyl- (<strong>2a</strong>), <i>N</i>-octyl- (<strong>2b</strong>), <i>N</i>-decyl- (<strong>2c</strong>) and <i>N</i>-dodecyl-<i>N</i>-[2-(hydroxyimino)-2-(pyridin-2-yl)ethyl]dimethylammonium (<strong>2d</strong>) nitrates were synthesized as water-soluble cationic ligand surfactants. Three types of micellar catalytic systems employing salts <strong>2</strong> were prepared: homomicellar water solutions of salts <strong>2</strong>, comicellar solutions of salts <strong>2</strong> with an inert cationic tenside hexadecyltrimethylammonium bromide (CTAB) and comicellar systems consisting of complexes of ligand surfactants <strong>2</strong> with transition metal ions (Co(II), Ni(II), Cu(II) and Zn(II)) and CTAB. Hydrolytic efficiency of all micellar and metallomicellar systems was tested by measuring the kinetics of the model substrate cleavage under pseudo-first-order reaction conditions. Of the above-mentioned catalysts, comicellar systems of salts <strong>2</strong> comicellized with CTAB were most efficient. In all cases, with the exception of Zn(II), coordination of a metal ion decreased the hydrolytic efficiency of salts <strong>2</strong>.

Title:Metallomicellar Hydrolytic Catalysts Containing Ligand Surfactants Derived from Alkyl Pyridin-2-yl Ketoxime
Creators:
Cibulka, Radek
Dvořák, David
Hampl, František
Liška, František
Uncontrolled Keywords:Pyridine derivatives, Micellar catalysis, Ester hydrolysis, Ligand surfactant
Divisions:Life and Chemical Sciences > Institute of Organic Chemistry and Biochemistry > Collection of Czechoslovak Chemical Communications
Journal or Publication Title:Collection of Czechoslovak Chemical Communications
Volume:62
Number:8
Page Range:pp. 1342-1354
ISSN:0010-0765
E-ISSN:1212-6950
Publisher:Institute of Organic Chemistry and Biochemistry
Related URLs:
URLURL Type
http://dx.doi.org/10.1135/cccc19971342UNSPECIFIED
ID Code:1212
Item Type:Article
Deposited On:06 Feb 2009 17:07
Last Modified:06 Feb 2009 16:07

Citation

Cibulka, Radek; Dvořák, David; Hampl, František; Liška, František (1997) Metallomicellar Hydrolytic Catalysts Containing Ligand Surfactants Derived from Alkyl Pyridin-2-yl Ketoxime. Collection of Czechoslovak Chemical Communications, 62 (8). pp. 1342-1354. ISSN 0010-0765

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