Modified Algar–Flynn–Oyamada Reaction for the Synthesis of 3-Hydroxy-2-styryl-chromen-4-ones under Solvent-Free Conditions
The simple and efficient conditions for a Algar–Flynn–Oyamada reaction for the synthesis of 3-hydroxy-2-styryl-chromen-4-ones involving the grinding of different 1-(2′-hydroxy-phenyl)-5-aryl-penta-2,4-dien-1-ones with UHP (urea–hydrogen peroxide), pulverized potassium hydroxide and a few drops of et...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-11-01
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| Series: | Chemistry Proceedings |
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| Online Access: | https://www.mdpi.com/2673-4583/12/1/27 |
| Summary: | The simple and efficient conditions for a Algar–Flynn–Oyamada reaction for the synthesis of 3-hydroxy-2-styryl-chromen-4-ones involving the grinding of different 1-(2′-hydroxy-phenyl)-5-aryl-penta-2,4-dien-1-ones with UHP (urea–hydrogen peroxide), pulverized potassium hydroxide and a few drops of ethanol at room temperature under solvent-free conditions are described. A presented protocol offers a faster reaction and a higher yield compared to conventional methods. The structure of the synthesized compounds was identified from their spectral data (IR, <sup>1</sup>H-NMR). |
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| ISSN: | 2673-4583 |