Effect of Ultrasound on the Green Selective Oxidation of Benzyl Alcohol to Benzaldehyde
Oxidation of alcohols plays an important role in industrial chemistry. Novel green techniques, such as sonochemistry, could be economically interesting by improving industrial synthesis yield. In this paper, we studied the selective oxidation of benzyl alcohol as a model of aromatic alcohol compound...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2019-11-01
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| Series: | Molecules |
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| Online Access: | https://www.mdpi.com/1420-3049/24/22/4157 |
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| author | Marion L. Chevallier Sarah Dessolin Fanny Serres Lucile Bruyas Gregory Chatel |
| author_facet | Marion L. Chevallier Sarah Dessolin Fanny Serres Lucile Bruyas Gregory Chatel |
| author_sort | Marion L. Chevallier |
| collection | DOAJ |
| description | Oxidation of alcohols plays an important role in industrial chemistry. Novel green techniques, such as sonochemistry, could be economically interesting by improving industrial synthesis yield. In this paper, we studied the selective oxidation of benzyl alcohol as a model of aromatic alcohol compound under various experimental parameters such as substrate concentration, oxidant nature and concentration, catalyst nature and concentration, temperature, pH, reaction duration, and ultrasound frequency. The influence of each parameter was studied with and without ultrasound to identify the individual sonochemical effect on the transformation. Our main finding was an increase in the yield and selectivity for benzaldehyde under ultrasonic conditions. Hydrogen peroxide and iron sulfate were used as green oxidant and catalyst. Coupled with ultrasound, these conditions increased the benzaldehyde yield by +45% compared to silent conditions. Investigation concerning the transformation mechanism revealed the involvement of radical species. |
| first_indexed | 2024-12-19T16:52:32Z |
| format | Article |
| id | doaj.art-1fe9e4ad5dc44f66b2fb3c5cbd954b96 |
| institution | Directory Open Access Journal |
| issn | 1420-3049 |
| language | English |
| last_indexed | 2024-12-19T16:52:32Z |
| publishDate | 2019-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Molecules |
| spelling | doaj.art-1fe9e4ad5dc44f66b2fb3c5cbd954b962022-12-21T20:13:29ZengMDPI AGMolecules1420-30492019-11-012422415710.3390/molecules24224157molecules24224157Effect of Ultrasound on the Green Selective Oxidation of Benzyl Alcohol to BenzaldehydeMarion L. Chevallier0Sarah Dessolin1Fanny Serres2Lucile Bruyas3Gregory Chatel4Univ. Savoie Mont Blanc, LCME, F-73000 Chambéry, FranceUniv. Savoie Mont Blanc, LCME, F-73000 Chambéry, FranceUniv. Savoie Mont Blanc, LCME, F-73000 Chambéry, FranceUniv. Savoie Mont Blanc, LCME, F-73000 Chambéry, FranceUniv. Savoie Mont Blanc, LCME, F-73000 Chambéry, FranceOxidation of alcohols plays an important role in industrial chemistry. Novel green techniques, such as sonochemistry, could be economically interesting by improving industrial synthesis yield. In this paper, we studied the selective oxidation of benzyl alcohol as a model of aromatic alcohol compound under various experimental parameters such as substrate concentration, oxidant nature and concentration, catalyst nature and concentration, temperature, pH, reaction duration, and ultrasound frequency. The influence of each parameter was studied with and without ultrasound to identify the individual sonochemical effect on the transformation. Our main finding was an increase in the yield and selectivity for benzaldehyde under ultrasonic conditions. Hydrogen peroxide and iron sulfate were used as green oxidant and catalyst. Coupled with ultrasound, these conditions increased the benzaldehyde yield by +45% compared to silent conditions. Investigation concerning the transformation mechanism revealed the involvement of radical species.https://www.mdpi.com/1420-3049/24/22/4157sonochemistryultrasoundhydroxyl radicalselective oxidationbenzyl alcoholbenzaldehyde |
| spellingShingle | Marion L. Chevallier Sarah Dessolin Fanny Serres Lucile Bruyas Gregory Chatel Effect of Ultrasound on the Green Selective Oxidation of Benzyl Alcohol to Benzaldehyde Molecules sonochemistry ultrasound hydroxyl radical selective oxidation benzyl alcohol benzaldehyde |
| title | Effect of Ultrasound on the Green Selective Oxidation of Benzyl Alcohol to Benzaldehyde |
| title_full | Effect of Ultrasound on the Green Selective Oxidation of Benzyl Alcohol to Benzaldehyde |
| title_fullStr | Effect of Ultrasound on the Green Selective Oxidation of Benzyl Alcohol to Benzaldehyde |
| title_full_unstemmed | Effect of Ultrasound on the Green Selective Oxidation of Benzyl Alcohol to Benzaldehyde |
| title_short | Effect of Ultrasound on the Green Selective Oxidation of Benzyl Alcohol to Benzaldehyde |
| title_sort | effect of ultrasound on the green selective oxidation of benzyl alcohol to benzaldehyde |
| topic | sonochemistry ultrasound hydroxyl radical selective oxidation benzyl alcohol benzaldehyde |
| url | https://www.mdpi.com/1420-3049/24/22/4157 |
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