Enantioselective addition of cyclic ketones to unactivated alkenes enabled by amine/Pd (II) cooperative catalysis

HC Shen, L Zhang, SS Chen, J Feng, BW Zhang… - ACS …, 2018 - ACS Publications
HC Shen, L Zhang, SS Chen, J Feng, BW Zhang, Y Zhang, X Zhang, YD Wu, LZ Gong
ACS Catalysis, 2018ACS Publications
Amine/Pd (II) cooperative catalysis has enabled a highly enantioselective addition of cyclic
ketones to unactivated alkenes. The hallmark of the strategy includes amide-directed,
regioselective activation of alkenes by Pd (II) and enhancing the nucleophilicity of α-carbon
of the ketones by enamine catalysis to synergistically drive the reaction, which is basically
unable to be accessed by a single catalyst. The combination of a commercially available Pd
(II) catalyst and diphenylprolinol was able to provide the γ-addition products with good to …
Amine/Pd(II) cooperative catalysis has enabled a highly enantioselective addition of cyclic ketones to unactivated alkenes. The hallmark of the strategy includes amide-directed, regioselective activation of alkenes by Pd(II) and enhancing the nucleophilicity of α-carbon of the ketones by enamine catalysis to synergistically drive the reaction, which is basically unable to be accessed by a single catalyst. The combination of a commercially available Pd(II) catalyst and diphenylprolinol was able to provide the γ-addition products with good to high yields and efficient stereochemical control (up to 95% ee).
ACS Publications
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