Ethyl (3S)-2-(Benzhydrylideneamino)-3-(Hydroxymethyl)Pent-4-Enoate置于sodium Hydride,三乙胺体系中,用 四氢呋喃,二氯甲烷 作为反应溶剂,化学反应生成 (1R,2S)-1-氨基-2-乙烯基环丙烷甲酸甲酯
参考文献:Catalytic Asymmetric Synthesis Of Ethyl (1R,2S)-Dehydrocoronamate
标题:Catalytic Asymmetric Synthesis Of Ethyl (1R,2S)-Dehydrocoronamate
摘要:A Synthesis Of (1R,2S)-Dehydrocoronamic Acid Ethyl Ester Was Developed Employing A Regio-And Enantioselective Palladium-Catalysed Nucleophilic Ring-Opening Of 3,4-Epoxy-1-Butene With A Glycine Anion Equivalent As The Key Enantiodifferentiating Step. The Desired Selectivity Was Achieved Using Trost'S Naphthyl Ligand. The Subsequent Activation Of The Free Hydroxyl Group And Ring-Closure By Intramolecular S(N)2 Reaction Gave The Desired Amino Acid Ethyl Ester. (C) 2006 Elsevier Ltd. All Rights Reserved.
DOI:10.1016/j.Tetlet.2006.12.025