Synthesis of zeolites P and evaluation of their activity as new and reusable heterogeneous catalysts in a three-component ABB’ Povarov model reaction
A Na-P zeolite was synthesized and subjected to ion exchange with Ca2+, Cu2+, Al3+, and In3+, and supported with H+/NH4Cl (NH4 -P) by in situ reaction of EtOH and NH4Cl. All the exchanged zeolites showed catalytic activity in the ABB’ Povarov reaction. However, zeolite NH4 -P promoted a better...
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| Format: | Article |
| Language: | English |
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Pontificia Universidad Javeriana
2020-12-01
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| Series: | Universitas Scientiarum |
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| Online Access: | https://revistas.javeriana.edu.co/index.php/scientarium/article/view/27798 |
| Summary: | A Na-P zeolite was synthesized and subjected to ion exchange with Ca2+,
Cu2+, Al3+, and In3+, and supported with H+/NH4Cl (NH4
-P) by in
situ reaction of EtOH and NH4Cl. All the exchanged zeolites showed
catalytic activity in the ABB’ Povarov reaction. However, zeolite NH4
-P
promoted a better yield. In all reactions two products were obtained,
2,6-dimethyl-4-(2-oxopyrrolidin-1-yl)-1,2,3,4-tetrahydroquinoline and
1-(1-(4-methylphenylamino)ethyl)pyrrolidin-2-one. Synthesis using
zeolite P as catalyst proves to be a simple method with high yields,
short reaction times and easy preparation. The catalyst can be recovered
by filtration and reused up to three times in good yields. |
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| ISSN: | 0122-7483 2027-1352 |