Twelve 4-aryl-3,4-dihydrocoumarins were synthesized by the condensation of phenols with the corresponding substituted cinnamic acids in the presence of nitrobenzene and sulfated montmorillonite K-10. This method displayed the property of green chemistry with respect of reuse of the catalyst. These compounds were evaluated for hydroxyl radical scavenging activity in vitro. Results showed that compounds with 7,8-dihydroxy groups had relatively strong hydroxyl radical scavenging activity.
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Acknowledgment
This work was financially supported by the Project of Shandong Province Higher Educational Science and Technology Program (J14M02), the Science and Technology Research Program of Shandong Academy of Medical Sciences (2014-4), and Shandong Provincial Natural Science Foundation (ZR2015YL041).
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Published in Khimiya Prirodnykh Soedinenii, No. 5, September–October, 2017, pp. 733–736.
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Li, N., Wang, B., Sun, Jy. et al. Synthesis and Hydroxyl Radical Scavenging Activity of 4-Aryl-3,4-Dihydrocoumarins. Chem Nat Compd 53, 860–865 (2017). https://doi.org/10.1007/s10600-017-2141-x
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DOI: https://doi.org/10.1007/s10600-017-2141-x