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Gold-Catalyzed Asymmetric Synthesis of Cyclic Ethers and Copper-Catalyzed Hydrofunctionalization of Alkynes
Gold-catalyzed cyclization of enantioenriched trisubstituted allenols to form enantioenriched α-tetrasubstituted cyclic ethers has been developed. This structural motif can be found in many natural products that have useful biological properties. The cyclization reaction is compatible with multiple functional groups and can ...