Vanadium-substituted Wells-Dawson potassium salt as catalyst for liquid phase oxidation of 1,4-dihydropyridine derivative

Dawson-type heteropolyoxometalate compounds (HPC) P2M18O62-6 (M= Mo, W) have received increasing attention in the catalytic field due to the combination of redox and acidic properties in the same structure. It has been proved that the introduction of vanadium into the Keggin framework is beneficial...

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Autores principales: Sánchez, Laura Mabel, Sathicq, Ángel Gabriel, Baronetti, Graciela Teresita, Thomas, Horacio Jorge
Formato: Articulo Preprint
Lenguaje:Inglés
Publicado: 2014
Materias:
Ingeniería Química
Heteropolyacid
Oxidation
1,4-dihydropyridine
Hydrogen peroxide
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/104252
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-104252
record_format dspace
spelling I19-R120-10915-1042522023-08-15T18:31:17Z http://sedici.unlp.edu.ar/handle/10915/104252 Vanadium-substituted Wells-Dawson potassium salt as catalyst for liquid phase oxidation of 1,4-dihydropyridine derivative Sánchez, Laura Mabel Sathicq, Ángel Gabriel Baronetti, Graciela Teresita Thomas, Horacio Jorge 2014-04 2020-09-09T17:06:58Z en Ingeniería Química Heteropolyacid Oxidation 1,4-dihydropyridine Hydrogen peroxide Dawson-type heteropolyoxometalate compounds (HPC) P2M18O62-6 (M= Mo, W) have received increasing attention in the catalytic field due to the combination of redox and acidic properties in the same structure. It has been proved that the introduction of vanadium into the Keggin framework is beneficial for redox Catalysis, shifting its activity from acid to redox-dominated. In this work we prepared and characterized vanadium (V) substituted Wells-Dawson heteropolysalt (WDKV). Fresh solid samples were characterized by 31P MAS-NMR, FTIR, SEM, XRD, TGA and Potentiometric titration measurements. Also, we performed the oxidation of a 1,4-dihydropyridine using WDKV as catalyst in acetonitrile media, with H2O2 as oxidant agent. The optimal procedure is the following: 1 mmol% of WDKV, a ratio 1,4-DHP: H2O2 (1:214) at reflux of acetonitrile. It must be noted that along all reactions, no secondary products were observed. Centro de Investigación y Desarrollo en Ciencias Aplicadas Articulo Preprint http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf 172-180
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ingeniería Química
Heteropolyacid
Oxidation
1,4-dihydropyridine
Hydrogen peroxide
spellingShingle Ingeniería Química
Heteropolyacid
Oxidation
1,4-dihydropyridine
Hydrogen peroxide
Sánchez, Laura Mabel
Sathicq, Ángel Gabriel
Baronetti, Graciela Teresita
Thomas, Horacio Jorge
Vanadium-substituted Wells-Dawson potassium salt as catalyst for liquid phase oxidation of 1,4-dihydropyridine derivative
topic_facet Ingeniería Química
Heteropolyacid
Oxidation
1,4-dihydropyridine
Hydrogen peroxide
description Dawson-type heteropolyoxometalate compounds (HPC) P2M18O62-6 (M= Mo, W) have received increasing attention in the catalytic field due to the combination of redox and acidic properties in the same structure. It has been proved that the introduction of vanadium into the Keggin framework is beneficial for redox Catalysis, shifting its activity from acid to redox-dominated. In this work we prepared and characterized vanadium (V) substituted Wells-Dawson heteropolysalt (WDKV). Fresh solid samples were characterized by 31P MAS-NMR, FTIR, SEM, XRD, TGA and Potentiometric titration measurements. Also, we performed the oxidation of a 1,4-dihydropyridine using WDKV as catalyst in acetonitrile media, with H2O2 as oxidant agent. The optimal procedure is the following: 1 mmol% of WDKV, a ratio 1,4-DHP: H2O2 (1:214) at reflux of acetonitrile. It must be noted that along all reactions, no secondary products were observed.
format Articulo
Preprint
author Sánchez, Laura Mabel
Sathicq, Ángel Gabriel
Baronetti, Graciela Teresita
Thomas, Horacio Jorge
author_facet Sánchez, Laura Mabel
Sathicq, Ángel Gabriel
Baronetti, Graciela Teresita
Thomas, Horacio Jorge
author_sort Sánchez, Laura Mabel
title Vanadium-substituted Wells-Dawson potassium salt as catalyst for liquid phase oxidation of 1,4-dihydropyridine derivative
title_short Vanadium-substituted Wells-Dawson potassium salt as catalyst for liquid phase oxidation of 1,4-dihydropyridine derivative
title_full Vanadium-substituted Wells-Dawson potassium salt as catalyst for liquid phase oxidation of 1,4-dihydropyridine derivative
title_fullStr Vanadium-substituted Wells-Dawson potassium salt as catalyst for liquid phase oxidation of 1,4-dihydropyridine derivative
title_full_unstemmed Vanadium-substituted Wells-Dawson potassium salt as catalyst for liquid phase oxidation of 1,4-dihydropyridine derivative
title_sort vanadium-substituted wells-dawson potassium salt as catalyst for liquid phase oxidation of 1,4-dihydropyridine derivative
publishDate 2014
url http://sedici.unlp.edu.ar/handle/10915/104252
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AT sathicqangelgabriel vanadiumsubstitutedwellsdawsonpotassiumsaltascatalystforliquidphaseoxidationof14dihydropyridinederivative
AT baronettigracielateresita vanadiumsubstitutedwellsdawsonpotassiumsaltascatalystforliquidphaseoxidationof14dihydropyridinederivative
AT thomashoraciojorge vanadiumsubstitutedwellsdawsonpotassiumsaltascatalystforliquidphaseoxidationof14dihydropyridinederivative
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