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Enantioselective Reductive (Hetero)Arylation of Cyclic N-Sulfonyl Imines by Cobalt Catalysis |
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| Authors: | Jieshuai Xiao Prof Dr Minyan Wang Xuwen Yin Shuo Yang Pei Gu Xueli Lv Dr Yue Zhao Prof Dr Zhuangzhi Shi |
| Institution: | 1. State Key Laboratory of Coordination Chemistry, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093 China
These authors contributed equally to this work.;2. State Key Laboratory of Coordination Chemistry, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093 China |
| Abstract: | Transition-metal-catalyzed enantioselective addition of aryl organometallic reagents to imines has emerged as one of the most powerful tools for the formation of optically active diarylmethylamines. Here, we report the first asymmetric reductive (hetero)arylations of imines using aryl and heteroaryl halides enabled by a chiral cobalt-bisphosphine catalyst. This approach shows good functional group compatibility and complements the reported strategy without use of organometallic reagents. Mechanistic investigations supported that aryl-cobalt, instead of an arylzinc reagent, was formed in situ in this reductive aryl-addition event. |
| Keywords: | Addition Arylation Cobalt Enantioselectivity Imines |