Preparation and catalytic evaluation of a palladium catalyst deposited over two-dimensional zeolite ITQ-2 modified with N-donor groups
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F14%3A10210905" target="_blank" >RIV/00216208:11310/14:10210905 - isvavai.cz</a>
Nalezeny alternativní kódy
RIV/61388955:_____/14:00427868
Výsledek na webu
<a href="http://dx.doi.org/10.1002/zaac.201300389" target="_blank" >http://dx.doi.org/10.1002/zaac.201300389</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/zaac.201300389" target="_blank" >10.1002/zaac.201300389</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Preparation and catalytic evaluation of a palladium catalyst deposited over two-dimensional zeolite ITQ-2 modified with N-donor groups
Popis výsledku v původním jazyce
Two-dimensional zeolite ITQ-2 was reacted successively with (3-chloropropyl)triethoxysilane, 2-(N,N-diethylamino)ethylamine, and ammonia to give a support bearing the Si(CH2)3NHCH2CH2NEt2 groups at the surface. Subsequent treatment with palladium(II) acetate afforded an immobilized palladium catalyst 3, which was tested in the Heck coupling of n-butyl acrylate with bromobenzene to give n-butyl cinnamate (4). This (pre)catalyst, which acts as a source of active metal species for the reaction occurring inthe liquid phase, showed good activity in N,N-dimethylformamide and N,N-dimethylacetamide at 150 degC. Reaction tests with different bases revealed a pronounced effect of the base additive on the course of the catalyzed process in terms of both the activity (yield of the coupling product) and selectivity [amount of n-butyl 3, 3-diphenylacrylate (5) resulting from twofold arylation]. Among the hydrated bases, the best yields of 4 were obtained in reactions performed in the presence of CH
Název v anglickém jazyce
Preparation and catalytic evaluation of a palladium catalyst deposited over two-dimensional zeolite ITQ-2 modified with N-donor groups
Popis výsledku anglicky
Two-dimensional zeolite ITQ-2 was reacted successively with (3-chloropropyl)triethoxysilane, 2-(N,N-diethylamino)ethylamine, and ammonia to give a support bearing the Si(CH2)3NHCH2CH2NEt2 groups at the surface. Subsequent treatment with palladium(II) acetate afforded an immobilized palladium catalyst 3, which was tested in the Heck coupling of n-butyl acrylate with bromobenzene to give n-butyl cinnamate (4). This (pre)catalyst, which acts as a source of active metal species for the reaction occurring inthe liquid phase, showed good activity in N,N-dimethylformamide and N,N-dimethylacetamide at 150 degC. Reaction tests with different bases revealed a pronounced effect of the base additive on the course of the catalyzed process in terms of both the activity (yield of the coupling product) and selectivity [amount of n-butyl 3, 3-diphenylacrylate (5) resulting from twofold arylation]. Among the hydrated bases, the best yields of 4 were obtained in reactions performed in the presence of CH
Klasifikace
Druh
J<sub>x</sub> - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
CEP obor
CA - Anorganická chemie
OECD FORD obor
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Návaznosti výsledku
Projekt
<a href="/cs/project/GA104%2F09%2F0561" target="_blank" >GA104/09/0561: Deponované nanočásticové katalyzátory pro tvorbu vazeb C-C</a><br>
Návaznosti
S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Ostatní
Rok uplatnění
2014
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Zeitschrift für Anorganische und Allgemeine Chemie
ISSN
0044-2313
e-ISSN
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Svazek periodika
640
Číslo periodika v rámci svazku
3-4
Stát vydavatele periodika
DE - Spolková republika Německo
Počet stran výsledku
6
Strana od-do
571-576
Kód UT WoS článku
000333192400007
EID výsledku v databázi Scopus
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