| Nano palladium catalyzed C(sp3)-H bonds arylation by a transient directing strategy |
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| 作者姓名： | Jianxia Chen Chaolumen Bai Hongpeng Ma Dan Liu Yong-Sheng Bao |
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| 作者单位： | College of Chemistry and Environmental Science, Inner Mongolia Key Laboratory of Green Catalysis, Inner Mongolia Normal University, Hohhot 010022, China |
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| 基金项目： | This research was financially supported by the National Natural Science Foundation of China (No. 21861030) and the Program for Young Talents of Science and Technology in Universities of Inner Mongolia Autonomous Region (No. NJYT-17-A22). |
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| 摘 要： | Reported herein is the first example of heterogeneous palladium catalyzed C(sp3)-H bonds arylation by a transient-ligand-directed strategy.Using supported palladium(metallic state) na nopariticles as catalyst,a wide range of aryl iodides undergo the coupling with various o-methylbenzaldehyde derivatives to assemble a library of highly selective and functionalized o-benzylbenzaldehydes.The stability of the catalyst was easily recovered four runs without significant loss of activity.The XPS analysis of the catalyst before and after reaction indicated that the reaction might be carried out by a catalytic cycle starting with Pd~0.
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| 关 键 词： | C(sp3)-H functionalization Transient directing group PALLADIUM Nanoparticles catalyst ARYLATION |
| 收稿时间： | 9 January 2020 |
Nano palladium catalyzed C(sp3)—H bonds arylation by a transient directing strategy |
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| Jianxia Chen,Chaolumen Bai,Hongpeng Ma,Dan Liu,Yong-Sheng Bao.Nano palladium catalyzed C(sp3)-H bonds arylation by a transient directing strategy[J].Chinese Chemical Letters,2021,32(1):465-469. |
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| Authors: | Jianxia Chen Chaolumen Bai Hongpeng Ma Dan Liu Yong-Sheng Bao |
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| Institution: | College of Chemistry and Environmental Science, Inner Mongolia Key Laboratory of Green Catalysis, Inner Mongolia Normal University, Hohhot 010022, China |
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| Abstract: | Reported herein is the first example of heterogeneous palladium catalyzed C(sp3)-H bonds arylation by a transient-ligand-directed strategy. Using supported palladium (metallic state) nanopariticles as catalyst, a wide range of aryl iodides undergo the coupling with various o-methylbenzaldehyde derivatives to assemble a library of highly selective and functionalized o-benzylbenzaldehydes. The stability of the catalyst was easily recovered four runs without significant loss of activity. The XPS analysis of the catalyst before and after reaction indicated that the reaction might be carried out by a catalytic cycle starting with Pd0. |
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| Keywords: | C(sp3)-H functionalization Transient directing group Palladium Nanoparticles catalyst Arylation |
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