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Statements

Subject Item
n2:RIV%2F00216208%3A11310%2F13%3A10133660%21RIV14-MSM-11310___
rdf:type
n6:Vysledek skos:Concept
rdfs:seeAlso
http://dx.doi.org/10.1039/c2cy20586f
dcterms: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.
dcterms: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
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
skos:notation
RIV/00216208:11310/13:10133660!RIV14-MSM-11310___
n6:predkladatel
n21:orjk%3A11310
n4:aktivita
n8:I n8:P
n4:aktivity
I, P(7E09111), P(GBP106/12/G015)
n4:cisloPeriodika
2
n4:dodaniDat
n13:2014
n4:domaciTvurceVysledku
n19:1747681
n4:druhVysledku
n7:J
n4:duvernostUdaju
n5:S
n4:entitaPredkladatele
n20:predkladatel
n4:idSjednocenehoVysledku
66331
n4:idVysledku
RIV/00216208:11310/13:10133660
n4:jazykVysledku
n15:eng
n4:klicovaSlova
ELECTROPHILIC ALKENES; METAL-ORGANIC FRAMEWORKS; SOLVENT-FREE CONDITIONS
n4:klicoveSlovo
n12:ELECTROPHILIC%20ALKENES n12:SOLVENT-FREE%20CONDITIONS n12:METAL-ORGANIC%20FRAMEWORKS
n4:kodStatuVydavatele
GB - Spojené království Velké Británie a Severního Irska
n4:kontrolniKodProRIV
[4800A9296A9B]
n4:nazevZdroje
Catalysis Science & Technology
n4:obor
n14:CF
n4:pocetDomacichTvurcuVysledku
1
n4:pocetTvurcuVysledku
7
n4:projekt
n11:7E09111 n11:GBP106%2F12%2FG015
n4:rokUplatneniVysledku
n13:2013
n4:svazekPeriodika
3
n4:tvurceVysledku
Garcia, Hermenegildo Čejka, Jiří Nachtigall, Petr Horacek, Michal Opanasenko, Maksym Dhakshinamoorthy, Amarajothi Shamzhy, Mariya
n4:wos
000313513000028
s:issn
2044-4753
s:numberOfPages
8
n9:doi
10.1039/c2cy20586f
n18:organizacniJednotka
11310