Chiral Ferrocenyl P,N-Ligands for Palladium-Catalyzed Asymmetric Formal [3+2] Cycloaddition of Propargylic Esters with beta-Ketoesters: Access to Functionalized Chiral 2,3-Dihydrofurans

文献类型: 外文期刊

第一作者: Zhou, Xiao-Mao

作者: Zhou, Xiao-Mao;Zhu, Fu-Lin;Liu, Zhen-Ting;Hu, Xiang-Ping;Zhou, Yong;Zhou, Xiao-Mao

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期刊名称:ORGANIC LETTERS ( 影响因子:6.005; 五年影响因子:5.551 )

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收录情况: SCI

摘要: A highly enantioselective palladium-catalyzed [3 + 2] cycloaddition of propargylic esters with, beta-ketoesters has been realized by employing a newly developed chiral ferrocene/benzimidazole-based P,N-ligand. This protocol features a good tolerance of functional groups in both propargylic esters and beta-ketoesters, thereby delivering a variety of highly functionalized chiral 2,3-dihydrofurans bearing an exocyclic double bond at the 3-position in good yields and with high enantioselectivities (up to 98% ee).

分类号: O62

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