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Synthesis of Chiral Triarylmethanes Bearing All‐Carbon Quaternary Stereocenters: Catalytic Asymmetric Oxidative Cross‐Coupling of 2,2‐Diarylacetonitriles and (Hetero)arenes
Authors:Zehua Wang  Yasheng Zhu  Xiaoguang Pan  Gang Wang  Lei Liu
Abstract:A direct and enantioselective oxidative cross‐coupling of racemic 2,2‐diarylacetonitriles with electron‐rich (hetero)arenes has been described, which allows for efficient construction of triarylmethanes bearing all‐carbon quaternary stereocenters with excellent chemo‐ and enantioselectivity. The reaction has an excellent functional group tolerance, and exhibits a broad scope with respect to both 2,2‐diarylacetonitrile and (hetero)arene components. The rich chemistry of the cyano group allows for facile synthesis of other valuable chiral triarylmethanes bearing all‐carbon quaternary centers that are otherwise difficult to access.
Keywords:asymmetric catalysis  nitrile  oxidative C−  H functionalization  quaternary stereocenter  triarylmethane
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