About: Comparison of the catalytic activity of MOFs and zeolites in Knoevenagel condensation

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About: Comparison of the catalytic activity of MOFs and zeolites in Knoevenagel condensation Goto Sponge NotDistinct Permalink

An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

Attributes	Values
rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
rdfs:seeAlso	http://dx.doi.org/10.1039/c2cy20586f
Description	The catalytic behavior of metal-organic-frameworks (MOFs) CuBTC and FeBTC was investigated in Knoevenagel condensation of cyclohexane carbaldehyde and benzaldehyde with active methylene compounds and compared with zeolites BEA and TS-1. High yields were achieved over the CuBTC catalyst in the Knoevenagel condensation involving malonitrile, especially at a relatively low reaction temperature (80 degrees C); no leaching of the active phase was evidenced. In contrast, zeolites were not active under such reaction conditions. We propose an activation of malonitrile on a pair of adjacent Cu ions to explain the high catalytic activity of CuBTC with respect to conventional catalysts. Compared with CuBTC, zeolites exhibited usually lower selectivities, which is ascribed to a high acid strength of their active sites promoting consecutive reactions. The catalytic behavior of metal-organic-frameworks (MOFs) CuBTC and FeBTC was investigated in Knoevenagel condensation of cyclohexane carbaldehyde and benzaldehyde with active methylene compounds and compared with zeolites BEA and TS-1. High yields were achieved over the CuBTC catalyst in the Knoevenagel condensation involving malonitrile, especially at a relatively low reaction temperature (80 degrees C); no leaching of the active phase was evidenced. In contrast, zeolites were not active under such reaction conditions. We propose an activation of malonitrile on a pair of adjacent Cu ions to explain the high catalytic activity of CuBTC with respect to conventional catalysts. Compared with CuBTC, zeolites exhibited usually lower selectivities, which is ascribed to a high acid strength of their active sites promoting consecutive reactions. (en)
Title	Comparison of the catalytic activity of MOFs and zeolites in Knoevenagel condensation Comparison of the catalytic activity of MOFs and zeolites in Knoevenagel condensation (en)
skos:prefLabel	Comparison of the catalytic activity of MOFs and zeolites in Knoevenagel condensation Comparison of the catalytic activity of MOFs and zeolites in Knoevenagel condensation (en)
skos:notation	RIV/00216208:11310/13:10133660!RIV14-MSM-11310___
http://linked.open...avai/riv/aktivita	I P
http://linked.open...avai/riv/aktivity	I, P(7E09111), P(GBP106/12/G015)
http://linked.open...iv/cisloPeriodika	2
http://linked.open...vai/riv/dodaniDat	2014
http://linked.open...aciTvurceVysledku	Nachtigall, Petr
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	Univerzita Karlova v Praze / Přírodovědecká fakulta
http://linked.open...dnocenehoVysledku	66331
http://linked.open...ai/riv/idVysledku	RIV/00216208:11310/13:10133660
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	ELECTROPHILIC ALKENES; METAL-ORGANIC FRAMEWORKS; SOLVENT-FREE CONDITIONS (en)
http://linked.open.../riv/klicoveSlovo	ELECTROPHILIC ALKENES METAL-ORGANIC FRAMEWORKS SOLVENT-FREE CONDITIONS
http://linked.open...odStatuVydavatele	GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV	[4800A9296A9B]
http://linked.open...i/riv/nazevZdroje	Catalysis Science & Technology
http://linked.open...in/vavai/riv/obor	CF
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	7 (xsd:int)
http://linked.open...vavai/riv/projekt	Intelligent design of nanoporous adsorbents and catalysts MOFs As Catalysts and Adsorbents: Discovery and Engeneering of Materials for Industrial Applications
http://linked.open...UplatneniVysledku	2013
http://linked.open...v/svazekPeriodika	3
http://linked.open...iv/tvurceVysledku	Nachtigall, Petr Čejka, Jiří Dhakshinamoorthy, Amarajothi Garcia, Hermenegildo Horacek, Michal Opanasenko, Maksym Shamzhy, Mariya
http://linked.open...ain/vavai/riv/wos	000313513000028
issn	2044-4753
number of pages	8 (xsd:int)
http://bibframe.org/vocab/doi	10.1039/c2cy20586f
http://localhost/t...ganizacniJednotka	11310

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