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Enantioselective Rhodium-Catalyzed Synthesis of α-Chloromethylene-γ-Butyrolactams from N-Allylic Alkynamides

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Figshare2016-02-20 更新2026-04-29 收录
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https://figshare.com/articles/dataset/Enantioselective_Rhodium_Catalyzed_Synthesis_of_Chloromethylene_Butyrolactams_from_i_N_i_Allylic_Alkynamides/2499784
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The first enantioselective cycloisomerization with intramolecular halogen migration of various 1,6-enynes promoted by a cationic Rh-Synphos catalyst is reported. This method provides an efficient route to enantiomerically enriched γ-butyrolactam derivatives, which are important core scaffolds found in numerous natural products and biologically active molecules. Good yields and enantiomeric excesses up to 96% are achieved.
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2016-02-20
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