Axially chiral biaryls were synthesized by an isoquinoline or 2-pyridine-directed Rh(III)-catalyzed dual C–H cleavage and coupling with internal alkynes in good to excellent yields. Oxidation of isoquinoline derivatives with m-CPBA furnished their corresponding N-oxides, which could be utilized as Lewis base catalysts in asymmetric reactions.
J. Zheng and S. You, Chem. Commun., 2014, 50, 8204 DOI: 10.1039/C4CC02822H
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