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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| Formato: | article |
| Lenguaje: | EN ES |
| Publicado: |
Pontificia Universidad Javeriana
2020
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| Materias: | |
| Acceso en línea: | https://doaj.org/article/24f2e651f892411a8d457637472c8463 |
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| Sumario: | 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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