About: Highly selective synthesis of acetylferrocene by acylation of ferrocene over zeolites

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Pro acylaci ferrocenu v kapalné fázi anhydritem kyseliny octové byla testována celá řada různých zeolitických katalyzátorů lišících se svou strukturou a koncentrací kyselých aktivních center. Bylo zjištěno, že konverze ferrocenu roste v pořadí: středně porézní zeolity < 1D širokoporézní zeolity < 3D širokoporézní zeolity. Výsledná konverze ferrocene byla dále ovlivněna poměrem Si/Al (s klesajícím poměrem Si/Al rostla konverze ferrocenu). Ukázalo se, že jak Broenstedova tak Lewisova kyselá centra přispívají ke katalytické aktivitě zeolitů při studované aclylační reakci. Selektivita mono-acylovaného ferrocenu byla téměř 100%. (cs) Zeolites with different structure and concentration of acid sites were investigated in a liquid phase acylation of ferrocene with acetic anhydride. It was found that the conversion of ferrocene increased in the order: medium pore zeolites < 1D large pore zeolites < 3D large pore zeolites. Zeolite SSZ-33 with interconnecting 10 and 12-membered rings exhibited a slightly lower conversion compared with mordenite. The increase in the conversion of ferrocene was observed with decreasing Si/Al ratio for the given zeolite structure. Both Broensted and Lewis acid sites contribute to the catalytic activity of zeolites in ferrocene acylation. Mono-acylated ferrocene (acetylferrocene) was synthesized by this reaction with almost 100% selectivity. Zeolites with different structure and concentration of acid sites were investigated in a liquid phase acylation of ferrocene with acetic anhydride. It was found that the conversion of ferrocene increased in the order: medium pore zeolites < 1D large pore zeolites < 3D large pore zeolites. Zeolite SSZ-33 with interconnecting 10 and 12-membered rings exhibited a slightly lower conversion compared with mordenite. The increase in the conversion of ferrocene was observed with decreasing Si/Al ratio for the given zeolite structure. Both Broensted and Lewis acid sites contribute to the catalytic activity of zeolites in ferrocene acylation. Mono-acylated ferrocene (acetylferrocene) was synthesized by this reaction with almost 100% selectivity. (en)
Title	Highly selective synthesis of acetylferrocene by acylation of ferrocene over zeolites Selektivní syntéza acetylferrocenu acylací ferrocenu na zeolitech (cs) Highly selective synthesis of acetylferrocene by acylation of ferrocene over zeolites (en)
skos:prefLabel	Highly selective synthesis of acetylferrocene by acylation of ferrocene over zeolites Selektivní syntéza acetylferrocenu acylací ferrocenu na zeolitech (cs) Highly selective synthesis of acetylferrocene by acylation of ferrocene over zeolites (en)
skos:notation	RIV/61388955:_____/07:00085031!RIV08-AV0-61388955
http://linked.open.../vavai/riv/strany	255;260
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GA104/07/0383), P(IAB4040201), Z(AV0Z40400503)
http://linked.open...iv/cisloPeriodika	2
http://linked.open...vai/riv/dodaniDat	2008
http://linked.open...aciTvurceVysledku	Bejblová, Martina Čejka, Jiří
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Ústav fyzikální chemie J. Heyrovského AV ČR, v.v.i.
http://linked.open...dnocenehoVysledku	424133
http://linked.open...ai/riv/idVysledku	RIV/61388955:_____/07:00085031
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	acetylferrocene; acylation; zeolites; structural types (en)
http://linked.open.../riv/klicoveSlovo	acylation zeolites structural types acetylferrocene
http://linked.open...odStatuVydavatele	NL - Nizozemsko
http://linked.open...ontrolniKodProRIV	[F589492BF321]
http://linked.open...i/riv/nazevZdroje	Applied Catalysis A - General
http://linked.open...in/vavai/riv/obor	CF
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	3 (xsd:int)
http://linked.open...vavai/riv/projekt	Development of new heterogeneous catalysts for acylation reactions Modeling metallocene catalysts in the gaseous phase
http://linked.open...UplatneniVysledku	2007
http://linked.open...v/svazekPeriodika	327
http://linked.open...iv/tvurceVysledku	Čejka, Jiří Zones, S. I. Bejblová, Martina
http://linked.open...n/vavai/riv/zamer	Struktura, reaktivita a dynamika molekulárních a biomolekulárních systémů: teorie, experiment, aplikace
issn	0926-860X
number of pages	6 (xsd:int)

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