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Statements

Subject Item
n2:RIV%2F61388955%3A_____%2F13%3A00391356%21RIV14-GA0-61388955
rdf:type
n5:Vysledek skos:Concept
dcterms:description
The catalytic behavior of metal–organic frameworks Cu-benzene- 1,3,5-tricarboxylate (CuBTC) and Fe-benzene-1,3,5-tricarboxylate (FeBTC) was investigated in the Pechmann condensation of different phenols (resorcinol, pyrogallol, and naphthol) with ethyl acetoacetate and compared with large-pore zeolites beta (BEA) and ultrastable Y (USY). Zeolites BEA and USY exhibited high activity in transformations of the most active substrates (resorcinol and pyrogallol) but a low conversion of naphthol was observed. Almost total transformation of naphthol (94–98% conversion) to the target product was achieved within 24 h of the reaction time over CuBTC and FeBTC. We assume that the regularity in the arrangement of active sites within the framework of CuBTC, which results in the existence of 2 active centers in close proximity, is of critical importance to the transformation of naphthol in the Pechmann reaction that leads to coumarin. The catalytic behavior of metal–organic frameworks Cu-benzene- 1,3,5-tricarboxylate (CuBTC) and Fe-benzene-1,3,5-tricarboxylate (FeBTC) was investigated in the Pechmann condensation of different phenols (resorcinol, pyrogallol, and naphthol) with ethyl acetoacetate and compared with large-pore zeolites beta (BEA) and ultrastable Y (USY). Zeolites BEA and USY exhibited high activity in transformations of the most active substrates (resorcinol and pyrogallol) but a low conversion of naphthol was observed. Almost total transformation of naphthol (94–98% conversion) to the target product was achieved within 24 h of the reaction time over CuBTC and FeBTC. We assume that the regularity in the arrangement of active sites within the framework of CuBTC, which results in the existence of 2 active centers in close proximity, is of critical importance to the transformation of naphthol in the Pechmann reaction that leads to coumarin.
dcterms:title
Solid Acid Catalysts for Coumarin Synthesis by the Pechmann Reaction: MOFs versus Zeolites Solid Acid Catalysts for Coumarin Synthesis by the Pechmann Reaction: MOFs versus Zeolites
skos:prefLabel
Solid Acid Catalysts for Coumarin Synthesis by the Pechmann Reaction: MOFs versus Zeolites Solid Acid Catalysts for Coumarin Synthesis by the Pechmann Reaction: MOFs versus Zeolites
skos:notation
RIV/61388955:_____/13:00391356!RIV14-GA0-61388955
n5:predkladatel
n17:ico%3A61388955
n3:aktivita
n15:P n15:I
n3:aktivity
I, P(GBP106/12/G015)
n3:cisloPeriodika
4
n3:dodaniDat
n7:2014
n3:domaciTvurceVysledku
n6:7016662 Opanasenko, Maksym Shamzhy, Mariya
n3:druhVysledku
n14:J
n3:duvernostUdaju
n12:S
n3:entitaPredkladatele
n13:predkladatel
n3:idSjednocenehoVysledku
106239
n3:idVysledku
RIV/61388955:_____/13:00391356
n3:jazykVysledku
n19:eng
n3:klicovaSlova
mesoporous molecular sieves; metal-organic frameworks; heterogeneous catalysis
n3:klicoveSlovo
n10:metal-organic%20frameworks n10:heterogeneous%20catalysis n10:mesoporous%20molecular%20sieves
n3:kodStatuVydavatele
DE - Spolková republika Německo
n3:kontrolniKodProRIV
[7F3C62981356]
n3:nazevZdroje
ChemCatChem
n3:obor
n4:CF
n3:pocetDomacichTvurcuVysledku
3
n3:pocetTvurcuVysledku
3
n3:projekt
n18:GBP106%2F12%2FG015
n3:rokUplatneniVysledku
n7:2013
n3:svazekPeriodika
5
n3:tvurceVysledku
Čejka, Jiří Opanasenko, Maksym Shamzhy, Mariya
n3:wos
000316809900021
s:issn
1867-3880
s:numberOfPages
8
n16:doi
10.1002/cctc.201200232