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Ligand-induced stereodivergent synthesis of spirocycles via Pd-catalyzed 4+2 annulations

机译:Ligand-induced stereodivergent synthesis of spirocycles via Pd-catalyzed 4+2 annulations

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摘要

In this issueof Chem Catalysis, Huang and co-workers reporta Pd-cata-lyzed stereodivergent4+2 annulationofalkylidene pyrazolones with vinyl benzoxazinanones via ligand regulation, synthesizing an array of 6.5-spiropyrazolones bearing three contiguous stereocenters with high yields and stereoselectivities. The origin of this stereodivergent annulation process was revealed by DFT calculation.

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