Synthesis and catalytic evaluation in the Heck reaction of deposited palladium catalysts immobilized via amide linkers and their molecular analogues

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F14%3A10210904" target="_blank" >RIV/00216208:11310/14:10210904 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61388955:_____/14:00427873

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.cattod.2013.09.012" target="_blank" >http://dx.doi.org/10.1016/j.cattod.2013.09.012</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.cattod.2013.09.012" target="_blank" >10.1016/j.cattod.2013.09.012</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Synthesis and catalytic evaluation in the Heck reaction of deposited palladium catalysts immobilized via amide linkers and their molecular analogues

Popis výsledku v původním jazyce

A series of deposited palladium catalysts was prepared by amidation of 3-aminopropylated silica gel with donor-functionalized acetic acids followed by treatment with palladium(II) acetate. The resulting materials containing YCH2CONH(CH2)(3)Si groups at the surface, where Y= SMe, NMe2, and PPh2, as well as the corresponding catalysts generated in situ from the analogous molecular donors YCH2CONH(CH2)(2)Me and palladium(II) acetate were evaluated in the Heck reaction of n-butyl acrylate with bromobenzeneto give n-butyl cinnamate. The heterogenized catalysts afforded consistently better yields of the coupling product than their respective molecular counterparts with the best results being achieved with the catalyst obtained from the amidoamine-functionalized support (Y =NMe2). Additional tests revealed that the deposited catalysts serve as a source of active metal for the reaction occurring in the liquid phase and that the yield of the coupling product is controlled by the amount of the

Název v anglickém jazyce

Synthesis and catalytic evaluation in the Heck reaction of deposited palladium catalysts immobilized via amide linkers and their molecular analogues

Popis výsledku anglicky

A series of deposited palladium catalysts was prepared by amidation of 3-aminopropylated silica gel with donor-functionalized acetic acids followed by treatment with palladium(II) acetate. The resulting materials containing YCH2CONH(CH2)(3)Si groups at the surface, where Y= SMe, NMe2, and PPh2, as well as the corresponding catalysts generated in situ from the analogous molecular donors YCH2CONH(CH2)(2)Me and palladium(II) acetate were evaluated in the Heck reaction of n-butyl acrylate with bromobenzeneto give n-butyl cinnamate. The heterogenized catalysts afforded consistently better yields of the coupling product than their respective molecular counterparts with the best results being achieved with the catalyst obtained from the amidoamine-functionalized support (Y =NMe2). Additional tests revealed that the deposited catalysts serve as a source of active metal for the reaction occurring in the liquid phase and that the yield of the coupling product is controlled by the amount of the

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CA - Anorganická chemie

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2014

Kód důvěrnosti údajů

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

Název periodika

Catalysis Today

ISSN

0920-5861

e-ISSN

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Svazek periodika

227

Číslo periodika v rámci svazku

15 May 2014

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

8

Strana od-do

207-214

Kód UT WoS článku

000332412900028

EID výsledku v databázi Scopus

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