Enantioselective Construction of Functionalized Tetrahydrocarbazoles Enabled by Asymmetric Relay Catalysis of Gold Complex and Chiral Brønsted Acid.

An intramolecular hydroamination/Michael addition cascade is realized using a combination of gold(I) complex and chiral BINOL-phosphoric acid, affording fused-tetrahydrocarbazole scaffolds in excellent yields and high enantioselectivities.

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