| A practical synthesis of α-bromo/iodo/chloroketones from olefins under visible-light irradiation conditions |
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| 作者姓名： | Zhihui Wang Lei Wang Zhiming Wang Pinhua Li Yicheng Zhang |
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| 作者单位： | Advanced Research Institute and Department of Chemistry, Taizhou University, Taizhou 318000, China;; Department of Chemistry, Huaibei Normal University, Huaibei 235000, China;; State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Shanghai 200032, China |
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| 基金项目： | We gratefully acknowledge the National Natural Science Foundation of China (No. 21772062) for financial support. |
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| 摘 要： | A practical synthesis of α-bromo/iodo/chloroketones from olefins under visible-light irradiation conditions has been developed.In the presence of PhI(OAc)2 as promoter and under ambient conditions,the reactions of styrenes and triiodomethane undergo the transformation smoothly to deliver the corresponding a-iodoketones without additional photocatalyst in good yields under sunlight irradiation.Mea nwhile,the reactions of styrenes with tribromomethane and trichloromethane generate the desiredα-bromoketones and a-chloroketones in high yields by using Ru(bpy)3Cl2 as a photocatalyst under blue LED(450-455 nm) irradiation.
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| 关 键 词： | α-Bromoketones α-Iodoketones α-Chloroketones OLEFINS Visible-light irradiation |
| 收稿时间： | 24 December 2019 |
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