Hierarchical Beta zeolites as catalysts in a one-pot three-component cascade Prins-Friedel-Crafts reaction
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F20%3A10419847" target="_blank" >RIV/00216208:11310/20:10419847 - isvavai.cz</a>
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=_drbZwCLEb" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=_drbZwCLEb</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1039/d0gc01787f" target="_blank" >10.1039/d0gc01787f</a>
Alternative languages
Result language
angličtina
Original language name
Hierarchical Beta zeolites as catalysts in a one-pot three-component cascade Prins-Friedel-Crafts reaction
Original language description
Hierarchical Beta zeolites obtained from concentrated reaction mixtures (H2O/Si = 2.5-7.0) in the presence of CTAB and their conventional and nanosponge analogues were investigated in a one-pot cascade environmentally friendly Prins-Friedel-Crafts reaction of butyraldehyde with 3-buten-1-ol and anisole under mild conditions (60 degrees C). The highest yields of the desired products with 4-aryltetrahydropyran structure were achieved when using hierarchical zeolites characterised by well-developed mesoporosity (facilitating the formation of bulky intermediates and products) and by an increased fraction of highly accessible (evaluated by TTBPy method) medium-strength Bronsted acid sites. Acid sites with higher strength promote strong adsorption of bulk O-containing intermediates or products and the formation of by products (tetrahydropyranyl ether and 2-propyloxan-4-ol). Therefore, this is an inexpensive and simple synthesis method for preparing hierarchical zeolites with catalytic activity comparable to that of nanosponge Beta, which is however prepared using complex and expensive multi-quaternary ammonium surfactants. Moreover, this synthetic protocol for 4-aryltetrahydropyrans replaces the carcinogenic and toxic chemicals, which have been previously used for Prins-Friedel-Crafts reactions, with green and non-toxic substances.
Czech name
—
Czech description
—
Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10403 - Physical chemistry
Result continuities
Project
<a href="/en/project/GX19-27551X" target="_blank" >GX19-27551X: ADORable catalysts</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Green Chemistry
ISSN
1463-9262
e-ISSN
—
Volume of the periodical
22
Issue of the periodical within the volume
20
Country of publishing house
GB - UNITED KINGDOM
Number of pages
11
Pages from-to
6992-7002
UT code for WoS article
000579757000027
EID of the result in the Scopus database
2-s2.0-85095111718