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Statements

Subject Item
n2:RIV%2F61388955%3A_____%2F09%3A00326442%21RIV10-MSM-61388955
rdf:type
n13:Vysledek skos:Concept
dcterms:description
A series of supported catalysts is prepared by treatment of SBA-15-type mesoporous molecular sieve bearing SiCH2CH2CH2NHCH2CH2CH2NEt2 groups with palladium(II) acetate. These catalysts are studied in Suzuki biaryl couplings and in Heck reactions to establish the influence of metal loading and innocent surface modifications (trimethylsilylation). The Suzuki reaction proceeded efficiently with model and practically relevant substrates; the catalyst performance increasing with an increasing degree of metalation (decreasing N/Pd ratio). Catalyst poisoning tests revealed that the reaction takes place in the liquid phase with the catalyst serving as a reservoir of active metal species and also as a stabilizing support once the reaction is performed. In the Heck reactions, on the other hand, the catalyst performance strongly changed with the reaction temperature and with N/Pd ratio. A series of supported catalysts is prepared by treatment of SBA-15-type mesoporous molecular sieve bearing SiCH2CH2CH2NHCH2CH2CH2NEt2 groups with palladium(II) acetate. These catalysts are studied in Suzuki biaryl couplings and in Heck reactions to establish the influence of metal loading and innocent surface modifications (trimethylsilylation). The Suzuki reaction proceeded efficiently with model and practically relevant substrates; the catalyst performance increasing with an increasing degree of metalation (decreasing N/Pd ratio). Catalyst poisoning tests revealed that the reaction takes place in the liquid phase with the catalyst serving as a reservoir of active metal species and also as a stabilizing support once the reaction is performed. In the Heck reactions, on the other hand, the catalyst performance strongly changed with the reaction temperature and with N/Pd ratio.
dcterms:title
Palladium Catalysts Supported on Mesoporous Molecular Sieves Bearing Nitrogen Donor Groups: Preparation and Use in Heck and Suzuki C-C Bond-Forming Reactions Palladium Catalysts Supported on Mesoporous Molecular Sieves Bearing Nitrogen Donor Groups: Preparation and Use in Heck and Suzuki C-C Bond-Forming Reactions
skos:prefLabel
Palladium Catalysts Supported on Mesoporous Molecular Sieves Bearing Nitrogen Donor Groups: Preparation and Use in Heck and Suzuki C-C Bond-Forming Reactions Palladium Catalysts Supported on Mesoporous Molecular Sieves Bearing Nitrogen Donor Groups: Preparation and Use in Heck and Suzuki C-C Bond-Forming Reactions
skos:notation
RIV/61388955:_____/09:00326442!RIV10-MSM-61388955
n3:aktivita
n11:P n11:Z
n3:aktivity
P(GA104/09/0561), P(LC06070), Z(AV0Z40400503), Z(MSM0021620857)
n3:cisloPeriodika
5
n3:dodaniDat
n8:2010
n3:domaciTvurceVysledku
n4:1538349 n4:7016662
n3:druhVysledku
n12:J
n3:duvernostUdaju
n15:S
n3:entitaPredkladatele
n10:predkladatel
n3:idSjednocenehoVysledku
332562
n3:idVysledku
RIV/61388955:_____/09:00326442
n3:jazykVysledku
n18:eng
n3:klicovaSlova
supported catalysts; Heck reaction; mesoporous materials; palladium; Suzuki reaction
n3:klicoveSlovo
n9:supported%20catalysts n9:Heck%20reaction n9:mesoporous%20materials n9:palladium n9:Suzuki%20reaction
n3:kodStatuVydavatele
DE - Spolková republika Německo
n3:kontrolniKodProRIV
[6C5B1C5B149E]
n3:nazevZdroje
ChemSusChem
n3:obor
n16:CF
n3:pocetDomacichTvurcuVysledku
2
n3:pocetTvurcuVysledku
4
n3:projekt
n14:LC06070 n14:GA104%2F09%2F0561
n3:rokUplatneniVysledku
n8:2009
n3:svazekPeriodika
2
n3:tvurceVysledku
Štěpnička, P. Lamač, M. Čejka, Jiří Demel, Jan
n3:wos
000266469600014
n3:zamer
n6:MSM0021620857 n6:AV0Z40400503
s:issn
1864-5631
s:numberOfPages
10