Cu-catalyzed oxidative C(sp2)-H cycloetherification of o-arylphenols for the preparation of dibenzofurans |
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| Authors: | Zhao Jiaji Wang Yong He Yimiao Liu Lanying Zhu Qiang |
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| Institution: | State Key Laboratory of Respiratory Disease, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, 190 Kaiyuan Avenue, Guangzhou 510530, China. |
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| Abstract: | A new process involving copper-catalyzed aerobic C(sp(2))-H activation, followed by cycloetherification, has been developed. This reaction serves as a direct method for the preparation of multisubstituted dibenzofurans starting with o-arylphenols. The presence of a strong para-electron-withdrawing group (e.g., NO(2)) on the phenol is essential for the success of the reaction. |
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