Solvent-free synthesis of jasminaldehyde over chitosan–layered double hydroxide catalyst assisted by microwave irradiation
This research paper reports on the use of chitosan-modified layered double hydroxide (LDH) composite catalysts (CS/MgAl–NO3) for the synthesis of jasminaldehyde under microwave irradiation. The catalysts were prepared by co-precipitation in an inert nitrogen atmosphere. The resulting samples were ch...
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| Format: | Article |
| Language: | English |
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Elsevier
2023-12-01
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| Series: | Arabian Journal of Chemistry |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S1878535223007888 |
| _version_ | 1797615905647099904 |
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| author | Jamal Houssaini Mohammed Naciri Bennani Said Arhzaf Chadia Mounir Marwa Alaqarbeh Hammou Ahlafi Abdellatif Amhoud |
| author_facet | Jamal Houssaini Mohammed Naciri Bennani Said Arhzaf Chadia Mounir Marwa Alaqarbeh Hammou Ahlafi Abdellatif Amhoud |
| author_sort | Jamal Houssaini |
| collection | DOAJ |
| description | This research paper reports on the use of chitosan-modified layered double hydroxide (LDH) composite catalysts (CS/MgAl–NO3) for the synthesis of jasminaldehyde under microwave irradiation. The catalysts were prepared by co-precipitation in an inert nitrogen atmosphere. The resulting samples were characterized by mean of X–ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), thermogravimetric/differential thermal analysis (TGA/DTA), scanning electron microscope (SEM) with energy-dispersive X–ray (EDX), and N2 adsorption/desorption isotherm (BET) analysis. The basicity of each catalyst was determined by the acid-base titration method. The performance of the catalysts was evaluated in the solvent-free synthesis of jasminaldehyde from aldol by condensation reaction between benzaldehyde and 1–heptanal in a microwave oven at P = 100 W and T = 90 °C. The effects of different parameters that are involved in the reaction, such as the catalyst amount and the benzaldehyde to 1–heptanal molar ratio, and reaction temperature, are investigated in detail. The results showed that the CS-functionalization of the catalyst leads to the enhancement of its basic sites making it more efficient than the naked MgAl–NO3 catalyst, in terms of the initial reaction rate, the conversion of the reactants and the selectivity toward the jasminaldehyde. The CS/MgAl–NO3 catalyst was also evaluated in successive regeneration reaction cycles. |
| first_indexed | 2024-03-11T07:33:37Z |
| format | Article |
| id | doaj.art-1e06b27e9adb4b0792979f94de04675a |
| institution | Directory Open Access Journal |
| issn | 1878-5352 |
| language | English |
| last_indexed | 2024-03-11T07:33:37Z |
| publishDate | 2023-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Arabian Journal of Chemistry |
| spelling | doaj.art-1e06b27e9adb4b0792979f94de04675a2023-11-17T05:26:01ZengElsevierArabian Journal of Chemistry1878-53522023-12-011612105326Solvent-free synthesis of jasminaldehyde over chitosan–layered double hydroxide catalyst assisted by microwave irradiationJamal Houssaini0Mohammed Naciri Bennani1Said Arhzaf2Chadia Mounir3Marwa Alaqarbeh4Hammou Ahlafi5Abdellatif Amhoud6Laboratory of Chemistry and Biology Applied to the Environment, URL-CNRST N°13, Research Team “Materials and Applied Catalysis”, Chemistry Department, Faculty of Sciences, Moulay Ismail University, BP. 11201 Zitoune, Meknes 50000, Morocco; Corresponding author.Laboratory of Chemistry and Biology Applied to the Environment, URL-CNRST N°13, Research Team “Materials and Applied Catalysis”, Chemistry Department, Faculty of Sciences, Moulay Ismail University, BP. 11201 Zitoune, Meknes 50000, MoroccoLaboratory of Chemistry and Biology Applied to the Environment, URL-CNRST N°13, Research Team “Materials and Applied Catalysis”, Chemistry Department, Faculty of Sciences, Moulay Ismail University, BP. 11201 Zitoune, Meknes 50000, MoroccoLaboratory of Chemistry and Biology Applied to the Environment, URL-CNRST N°13, Research Team “Materials and Applied Catalysis”, Chemistry Department, Faculty of Sciences, Moulay Ismail University, BP. 11201 Zitoune, Meknes 50000, MoroccoPrince Al Hussein bin Abdullah II Academy for Civil Protection, Al-Balqa Applied University, Al-Salt 19117, JordanLaboratory of Chemistry and Biology Applied to the Environment, URL-CNRST N°13, Research Team “Materials and Applied Catalysis”, Chemistry Department, Faculty of Sciences, Moulay Ismail University, BP. 11201 Zitoune, Meknes 50000, MoroccoLaboratory of Materials, Membranes and Nanotechnology, Department of Chemistry, Faculty of Sciences, Moulay Ismail University, BP. 11201 Zitoune, Meknes 50000, MoroccoThis research paper reports on the use of chitosan-modified layered double hydroxide (LDH) composite catalysts (CS/MgAl–NO3) for the synthesis of jasminaldehyde under microwave irradiation. The catalysts were prepared by co-precipitation in an inert nitrogen atmosphere. The resulting samples were characterized by mean of X–ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), thermogravimetric/differential thermal analysis (TGA/DTA), scanning electron microscope (SEM) with energy-dispersive X–ray (EDX), and N2 adsorption/desorption isotherm (BET) analysis. The basicity of each catalyst was determined by the acid-base titration method. The performance of the catalysts was evaluated in the solvent-free synthesis of jasminaldehyde from aldol by condensation reaction between benzaldehyde and 1–heptanal in a microwave oven at P = 100 W and T = 90 °C. The effects of different parameters that are involved in the reaction, such as the catalyst amount and the benzaldehyde to 1–heptanal molar ratio, and reaction temperature, are investigated in detail. The results showed that the CS-functionalization of the catalyst leads to the enhancement of its basic sites making it more efficient than the naked MgAl–NO3 catalyst, in terms of the initial reaction rate, the conversion of the reactants and the selectivity toward the jasminaldehyde. The CS/MgAl–NO3 catalyst was also evaluated in successive regeneration reaction cycles.http://www.sciencedirect.com/science/article/pii/S1878535223007888ChitosanLayered double hydroxideMicrowave irradiationCatalytic activityAldol condensationJasminaldehyde |
| spellingShingle | Jamal Houssaini Mohammed Naciri Bennani Said Arhzaf Chadia Mounir Marwa Alaqarbeh Hammou Ahlafi Abdellatif Amhoud Solvent-free synthesis of jasminaldehyde over chitosan–layered double hydroxide catalyst assisted by microwave irradiation Arabian Journal of Chemistry Chitosan Layered double hydroxide Microwave irradiation Catalytic activity Aldol condensation Jasminaldehyde |
| title | Solvent-free synthesis of jasminaldehyde over chitosan–layered double hydroxide catalyst assisted by microwave irradiation |
| title_full | Solvent-free synthesis of jasminaldehyde over chitosan–layered double hydroxide catalyst assisted by microwave irradiation |
| title_fullStr | Solvent-free synthesis of jasminaldehyde over chitosan–layered double hydroxide catalyst assisted by microwave irradiation |
| title_full_unstemmed | Solvent-free synthesis of jasminaldehyde over chitosan–layered double hydroxide catalyst assisted by microwave irradiation |
| title_short | Solvent-free synthesis of jasminaldehyde over chitosan–layered double hydroxide catalyst assisted by microwave irradiation |
| title_sort | solvent free synthesis of jasminaldehyde over chitosan layered double hydroxide catalyst assisted by microwave irradiation |
| topic | Chitosan Layered double hydroxide Microwave irradiation Catalytic activity Aldol condensation Jasminaldehyde |
| url | http://www.sciencedirect.com/science/article/pii/S1878535223007888 |
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