Lewis acidity of mesoporous molecular sieves for acylation reactions

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F08%3A00309573" target="_blank" >RIV/61388955:_____/08:00309573 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Lewis acidity of mesoporous molecular sieves for acylation reactions
Original language description
The effect of the concentration of Lewis acid sites on the activity and selectivity of different molecular sieve catalysts was investigated in the Friedel-Crafts acylation of ferrocene with acetic anhydride, toluene with isobutyryl chloride, and cyclohexene and 1-methylcyclohexene with propionic anhydride. H-, Zn-, Fe-, Al-, and La-forms of mesoporous molecular sieves (Al)MCM-41 and (Al)SBA-15 were studied and compared with large-pore zeolites. No general relationship between the type of cation and conversion of substrate was found. In acylation of ferrocene the highest ferrocene conversions were reached over Zn- and H-atoms while in toluene acylation Al-forms were the most active. The selectivities over mesoporous molecular sieves were lower (61-89 %)compared with zeolites (82-98 %).
Czech name
Lewisova acidita mesoporézních molekulárních sít pro acylační reakce
Czech description
Tématem práce je Lewisova acidita mesoporézních molekulárních sít pro acylační reakce.

Project
<a href="/en/project/GA104%2F07%2F0383" target="_blank" >GA104/07/0383: Development of new heterogeneous catalysts for acylation reactions</a><br>
Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year
2008
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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