Volume 126, Issue 36 pp. 9709-9713
Zuschrift

Enantioselective Formation of Cyano-Bearing All-Carbon Quaternary Stereocenters: Desymmetrization by Copper-Catalyzed N-Arylation

Dr. Fengtao Zhou

Dr. Fengtao Zhou

Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences (GIBH), No.190 Kaiyuan Avenue, Guangzhou Science Park, Guangzhou, 510530 (China)

Current Address: Molecular Catalyst Research Center, Chubu University, Aichi, 487-8501 (Japan)

These authors contributed equally to this work.

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Gui-Juan Cheng

Gui-Juan Cheng

Lab of Computational Chemistry and Drug Design, Key Laboratory of Chemical Genomics, Peking University Shenzhen Graduate School, Shenzhen 518055 (China)

These authors contributed equally to this work.

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Wenqiang Yang

Wenqiang Yang

Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences (GIBH), No.190 Kaiyuan Avenue, Guangzhou Science Park, Guangzhou, 510530 (China)

These authors contributed equally to this work.

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Yan Long

Yan Long

College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha, 410081 (China)

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Shasha Zhang

Shasha Zhang

Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences (GIBH), No.190 Kaiyuan Avenue, Guangzhou Science Park, Guangzhou, 510530 (China)

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Prof. Dr. Yun-Dong Wu

Prof. Dr. Yun-Dong Wu

Lab of Computational Chemistry and Drug Design, Key Laboratory of Chemical Genomics, Peking University Shenzhen Graduate School, Shenzhen 518055 (China)

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Dr. Xinhao Zhang

Corresponding Author

Dr. Xinhao Zhang

Lab of Computational Chemistry and Drug Design, Key Laboratory of Chemical Genomics, Peking University Shenzhen Graduate School, Shenzhen 518055 (China)

Xinhao Zhang, Lab of Computational Chemistry and Drug Design, Key Laboratory of Chemical Genomics, Peking University Shenzhen Graduate School, Shenzhen 518055 (China)

Qian Cai, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences (GIBH), No.190 Kaiyuan Avenue, Guangzhou Science Park, Guangzhou, 510530 (China)

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Prof. Dr. Qian Cai

Corresponding Author

Prof. Dr. Qian Cai

Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences (GIBH), No.190 Kaiyuan Avenue, Guangzhou Science Park, Guangzhou, 510530 (China)

Xinhao Zhang, Lab of Computational Chemistry and Drug Design, Key Laboratory of Chemical Genomics, Peking University Shenzhen Graduate School, Shenzhen 518055 (China)

Qian Cai, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences (GIBH), No.190 Kaiyuan Avenue, Guangzhou Science Park, Guangzhou, 510530 (China)

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First published: 15 July 2014
Citations: 12

The authors are grateful to the 100-talent program of CAS, NSFC (21272234, 21133002, & 21232001), the MOST of China (2013CB911501), and the Shenzhen STIC (KQTD201103) for their financial support. We also thank Dr. Jingsong Liu at GIBH for the X-ray experiments.

Abstract

The enantioselective construction of all-carbon quaternary stereocenters is one of the most challenging fields in asymmetric synthesis. An asymmetric desymmetrization strategy offers an indirect and efficient method for the formation of all-carbon stereocenters. An enantioselective formation of cyano-bearing all-carbon quaternary stereocenters in 1,2,3,4,-tetrahydroquinolines and 2,3,4,5-tetrahydro-1H-benzo[b]azepines by copper-catalyzed desymmetric N-arylation is demonstrated. The cyano group at the prochiral center plays a key role for the high enantioselectivity and works as an important functional group for further transformations. DFT studies provide a model which successfully accounts for the origin of enantioselectivity.

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