Poly(imidazolium) Carbosilane Dendrimers: Synthesis, Catalytic Activity in Redox Esterification of ?,??Unsaturated Aldehydes and Recycling via Organic Solvent Nanofiltration
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F44555601%3A13440%2F21%3A43896385" target="_blank" >RIV/44555601:13440/21:43896385 - isvavai.cz</a>
Result on the web
<a href="https://www.mdpi.com/2073-4344/11/11/1317/htm" target="_blank" >https://www.mdpi.com/2073-4344/11/11/1317/htm</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3390/catal11111317" target="_blank" >10.3390/catal11111317</a>
Alternative languages
Result language
angličtina
Original language name
Poly(imidazolium) Carbosilane Dendrimers: Synthesis, Catalytic Activity in Redox Esterification of ?,??Unsaturated Aldehydes and Recycling via Organic Solvent Nanofiltration
Original language description
Three series of poly(ionic) carbosilane dendrimers peripherally functionalized with imidazolium groups substituted on N-3 with methyl, isopropyl and 2,6-diisopropylphenyl (Dipp) were prepared up to the 3rd generation together with model monovalent imidazolium iodides and used as N-heterocyclic carbene (NHC) precursors. Catalytic activity of model and dendritic NHCs generated in situ by deprotonation with DBU was tested in redox esterification of ?,?-unsaturated aldehydes and the influence of substitution, dendrimer generation, temperature and substrate structure on the reaction outcome was evaluated. Dipp substituted NHCs showed high activity and selectivity in the reaction with primary alcohols. Effectiveness of organic solvent nanofiltration for the recycling of dendritic NHCs was demonstrated on the 1st generation Dipp substituted catalyst in model redox esterification of cinnamaldehyde with benzyl alcohol. A marked increase in both activity and selectivity in the first four reaction runs was observed and this improved performance was preserved in the following catalytic cycles.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10404 - Polymer science
Result continuities
Project
<a href="/en/project/EF17_048%2F0007411" target="_blank" >EF17_048/0007411: UniQSurf - Centre of biointerfaces and hybrid functional materials</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Catalysts
ISSN
2073-4344
e-ISSN
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Volume of the periodical
11
Issue of the periodical within the volume
11
Country of publishing house
CH - SWITZERLAND
Number of pages
17
Pages from-to
"nestrankovano"
UT code for WoS article
000724512100001
EID of the result in the Scopus database
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