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Catalytic β-Functionalization of Carbonyl Compounds Enabled by α,β-Desaturation

https://doi.org/10.1021/acscatal.0c01519

Wang, Chengpeng ; Dong, Guangbin ( June 2020 , ACS Catalysis)
null (Ed.)
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Intramolecular β-Alkenylation of Cyclohexanones via Pd-Catalyzed Desaturation-Mediated C(sp 3 )–H/Alkyne Coupling

https://doi.org/10.1021/jacs.0c02654

Wang, Chengpeng ; Naren, Nevin A. ; Zheng, Pengfei ; Dong, Guangbin ( May 2020 , Journal of the American Chemical Society)
null (Ed.)
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Kinetic Resolution via Rh-Catalyzed C–C Activation of Cyclobutanones at Room Temperature

https://doi.org/10.1021/jacs.9b09344

Deng, Lin ; Fu, Yue ; Lee, Siu Yin ; Wang, Chengpeng ; Liu, Peng ; Dong, Guangbin ( September 2019 , Journal of the American Chemical Society)

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Catalytic C(sp 3 )−H Arylation of Free Primary Amines with an exo Directing Group Generated In Situ

https://doi.org/10.1002/ange.201604268

Xu, Yan ; Young, Michael C. ; Wang, Chengpeng ; Magness, David M. ; Dong, Guangbin ( June 2016 , Angewandte Chemie)

Abstract
Herein, we report the palladium‐catalyzed direct arylation of unactivated aliphatic C−H bonds in free primary amines. This method takes advantage of anexo‐imine‐type directing group (DG) that can be generated and removed in situ. A range of unprotected aliphatic amines are suitable substrates, undergoing site‐selective arylation at the γ‐position. Methyl as well as cyclic and acyclic methylene groups can be activated. Furthermore, when aniline‐derived substrates were used, preliminary success with δ‐C−H arylation was achieved. The feasibility of using the DG component in a catalytic fashion was also demonstrated.

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