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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