Cobalt supported on alumina as green catalyst for Biginelli reaction in mild conditions: effect of catalyst preparation method
Cobalt supported on alumina (10 wt% Co/Al2O3) was synthesized by three different methods; sol-gel (SG), microemulsion (ME) and impregnation (IMP). The materials were characterized by the Brunauer-Emmett-Teller (BET) method, X-ray diffraction (XRD), X-ray fluorescence, scanning electron microscopy (S...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
De Gruyter
2017-11-01
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| Series: | Green Processing and Synthesis |
| Subjects: | |
| Online Access: | https://doi.org/10.1515/gps-2016-0149 |
| _version_ | 1819135403768152064 |
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| author | Khiar Chahinaz Tassadit Mazari Bennini Leila Halouane Mourad Benito González Manuel Jesús Menad Saliha Tezkratt Said Rabia Chérifa |
| author_facet | Khiar Chahinaz Tassadit Mazari Bennini Leila Halouane Mourad Benito González Manuel Jesús Menad Saliha Tezkratt Said Rabia Chérifa |
| author_sort | Khiar Chahinaz |
| collection | DOAJ |
| description | Cobalt supported on alumina (10 wt% Co/Al2O3) was synthesized by three different methods; sol-gel (SG), microemulsion (ME) and impregnation (IMP). The materials were characterized by the Brunauer-Emmett-Teller (BET) method, X-ray diffraction (XRD), X-ray fluorescence, scanning electron microscopy (SEM) and transmission electron microscopy (TEM) analysis. Their catalytic activity was investigated toward the formation of Biginelli reaction products, 3,4-dihydropyrimidin(1H)-ones (DHPMs). The catalysts were found to be efficient for this reaction with yields between 50% and 71% and can be reused without great loss of efficiency. Among the catalytic systems, that prepared by the SG method is the most active with 71% of DHPMs yield under solvent free conditions at 100°C for 1 h of reaction time. |
| first_indexed | 2024-12-22T10:18:32Z |
| format | Article |
| id | doaj.art-b2abbd46341541d081ef9a9bcfb98cfb |
| institution | Directory Open Access Journal |
| issn | 2191-9542 2191-9550 |
| language | English |
| last_indexed | 2024-12-22T10:18:32Z |
| publishDate | 2017-11-01 |
| publisher | De Gruyter |
| record_format | Article |
| series | Green Processing and Synthesis |
| spelling | doaj.art-b2abbd46341541d081ef9a9bcfb98cfb2022-12-21T18:29:42ZengDe GruyterGreen Processing and Synthesis2191-95422191-95502017-11-016653354110.1515/gps-2016-0149Cobalt supported on alumina as green catalyst for Biginelli reaction in mild conditions: effect of catalyst preparation methodKhiar Chahinaz0Tassadit Mazari1Bennini Leila2Halouane Mourad3Benito González Manuel Jesús4Menad Saliha5Tezkratt Said6Rabia Chérifa7Laboratoire de Chimie Appliqué et du Génie Chimique, Faculté des Sciences, Université M. Mammeri Tizi-Ouzou, 15000, AlgeriaFaculté des sciences, Département de Chimie, Université M. Mammeri Tizi-Ouzou, 15000, AlgeriaLaboratoire de Chimie Appliqué et du Génie Chimique, Faculté des Sciences, Université M. Mammeri Tizi-Ouzou, 15000, AlgeriaLaboratoire de Chimie Appliqué et du Génie Chimique, Faculté des Sciences, Université M. Mammeri Tizi-Ouzou, 15000, AlgeriaUnidad de Valorización Energética de Combustibles y Residuos, División de Combustión y Gasificación, Departamento de Energía, CIEMAT, Despacho 17, Plta 2a Edificio 20, Av. Complutense, 40, 28040 Madrid, SpainLaboratoire de Chimie Appliqué et du Génie Chimique, Faculté des Sciences, Université M. Mammeri Tizi-Ouzou, 15000, AlgeriaLaboratoire de Chimie Appliqué et du Génie Chimique, Faculté des Sciences, Université M. Mammeri Tizi-Ouzou, 15000, AlgeriaLaboratoire de Chimie du Gaz Naturel, Faculté de Chimie, Université de Science et Technologie Houari Boumediene, 16000, Alger, AlgeriaCobalt supported on alumina (10 wt% Co/Al2O3) was synthesized by three different methods; sol-gel (SG), microemulsion (ME) and impregnation (IMP). The materials were characterized by the Brunauer-Emmett-Teller (BET) method, X-ray diffraction (XRD), X-ray fluorescence, scanning electron microscopy (SEM) and transmission electron microscopy (TEM) analysis. Their catalytic activity was investigated toward the formation of Biginelli reaction products, 3,4-dihydropyrimidin(1H)-ones (DHPMs). The catalysts were found to be efficient for this reaction with yields between 50% and 71% and can be reused without great loss of efficiency. Among the catalytic systems, that prepared by the SG method is the most active with 71% of DHPMs yield under solvent free conditions at 100°C for 1 h of reaction time.https://doi.org/10.1515/gps-2016-0149alumina supportbiginelli reactioncatalysiscobalt materialsdihydropyrimidinonesgreen chemistry |
| spellingShingle | Khiar Chahinaz Tassadit Mazari Bennini Leila Halouane Mourad Benito González Manuel Jesús Menad Saliha Tezkratt Said Rabia Chérifa Cobalt supported on alumina as green catalyst for Biginelli reaction in mild conditions: effect of catalyst preparation method Green Processing and Synthesis alumina support biginelli reaction catalysis cobalt materials dihydropyrimidinones green chemistry |
| title | Cobalt supported on alumina as green catalyst for Biginelli reaction in mild conditions: effect of catalyst preparation method |
| title_full | Cobalt supported on alumina as green catalyst for Biginelli reaction in mild conditions: effect of catalyst preparation method |
| title_fullStr | Cobalt supported on alumina as green catalyst for Biginelli reaction in mild conditions: effect of catalyst preparation method |
| title_full_unstemmed | Cobalt supported on alumina as green catalyst for Biginelli reaction in mild conditions: effect of catalyst preparation method |
| title_short | Cobalt supported on alumina as green catalyst for Biginelli reaction in mild conditions: effect of catalyst preparation method |
| title_sort | cobalt supported on alumina as green catalyst for biginelli reaction in mild conditions effect of catalyst preparation method |
| topic | alumina support biginelli reaction catalysis cobalt materials dihydropyrimidinones green chemistry |
| url | https://doi.org/10.1515/gps-2016-0149 |
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