Studies of manufacturing controlled-release graphene acid and catalyzing synthesis of chalcone with Claisen–Schmidt condensation reaction |
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| Institution: | 1. Jiangsu Key Laboratory of Regional Resource Exploitation and Medicinal Research, School of Chemical Engineering, Huaiyin Institute of Technology, Huaian 223003, China;2. State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences of Guangxi Normal University, Guilin 541004, China;3. Jiangsu Province Hi-Tech Key Laboratory for Biomedical Research, Southeast University, Nanjing 211189, China;4. Seasons Biotechnology (Taizhou) Co., Ltd, 21 Jiutiao Road, Jiaojiang District, Taizhou City, Zhejiang Province, 318000, China;1. Guangling College, Yangzhou University, Yangzhou 225002, China;2. School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China;1. Department of Pharmacognosy and Pharmaceutical Chemistry, Faculty of Medicine and Biomedical Sciences, University of Yaoundé I, P.O. Box. 1364, Yaoundé, Cameroon;2. Department of Chemistry, Faculty of Science, University of Yaounde I, Yaounde, Cameroon;3. Department of Biochemistry, Faculty of Science, University of Dschang, Dschang, Cameroon;4. Department of Food Engineering, Faculty of Engineering and Architecture, Kafkas University, Kars 36100, Turkey;5. Department of Chemistry, Faculty of Science, University of Dschang, Dschang, Cameroon;6. Department of Chemistry, Faculty of Sciences, Atatürk University, Erzurum 25240, Turkey |
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| Abstract: | In the paper, graphene acid (GA) was manufactured, using flake graphite as raw material, and the acidity and the structure of GA were characterized as well as. Then, chalcone was synthesized in the presence of GA, using acetophenone and benzaldehyde as the reactant. The results showed that the acidity of GA was for pH = 1.12 in aqueous solution, and it was structured by the graphene sheets with the spaces between the graphene sheet and the graphene sheet and sulfuric acid (H2SO4) and acetic acid (CH3CO2H) inside the spaces. At the same time, the results also exhibited that the chalcone yield was able to reach 60.36% when GA dosage was 5 g, and the chalcone yields could attain apart 60.36, 52.05 and 31.16% when 5 g of GA was used thrice. This shows that GA is not only a high-performance catalyst, but also a controlled-release catalyst. |
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| Keywords: | Graphene acid Catalyst Chalcone Synthesis Claisen–Schmidt condensation |
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