Superior Activity of Isomorphously Substituted MOFs with MIL-100(M=Al, Cr, Fe, In, Sc, V) Structure in the Prins Reaction: Impact of Metal Type
| Autor: | Michal Horáček, Maksym Opanasenko, Gema Gómez-Pozuelo, Jiří Čejka, Carlos Palomino Cabello |
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| Rok vydání: | 2016 |
| Předmět: |
010405 organic chemistry
Chemistry Inorganic chemistry General Chemistry Prins reaction 010402 general chemistry Heterogeneous catalysis 01 natural sciences 0104 chemical sciences Catalysis Metal visual_art Yield (chemistry) visual_art.visual_art_medium Metal-organic framework Mesoporous material Selectivity Nuclear chemistry |
| Zdroj: | ChemPlusChem. 82(1) |
| ISSN: | 2192-6506 |
| Popis: | The catalytic behavior of isomorphously substituted MIL-100(M) (M=Al, Cr, Fe, In, Sc, V) was investigated in the synthesis of nopol in the Prins condensation of β-pinene with paraformaldehyde. Large mesoporous cages of metal-organic frameworks provide a sustainable confinement for the formation of the target product (100 % selectivity to nopol over all materials studied). MIL-100(Sc) and MIL-100(V) exhibited the highest yield (up to 90 %) of nopol after just 20 min from the beginning of the reaction due to their highest amount of accessible Lewis sites possessing intermediate acidity. The high catalytic activity (reaching almost 90 % of β-pinene conversion) even after decreasing the amount of catalyst from 100 to 25 mg (0.025 and 0.0063 gcatalyst/mmolsubstrate, respectively) the stability of its structure and the possibility to use it several times make MIL-100(V) a promising material for application in acid-catalyzed reactions under mild reaction conditions. |
| Databáze: | OpenAIRE |
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