A Ring Contraction Strategy toward a Diastereoselective Total Synthesis of (+)-Bakkenolide A
作者:Vânia M. T. Carneiro、Helena M. C. Ferraz、Tiago O. Vieira、Eloisa E. Ishikawa、Luiz F. Silva
DOI:10.1021/jo100108b
日期:2010.5.7
presented from the readily available optically active Wieland−Miescher ketone. This novel synthesis of this sesquiterpene lactone features the following as key stereoselective transformations: (i) the ring contraction reaction of a octalone mediated by thallium(III) nitrate (TTN); (ii) a hydrogenation to create the cis-fused junction; and (iii) the formation of the C7 quaternary center through an enolate intermediate
A silyl enol ether variation of the Robinson annulation
作者:John W. Huffman、Shailesh M. Potnis、Amruthur V. Satish
DOI:10.1021/jo00222a014
日期:1985.11
ZORETIC P. A.; GOLEN J. A.; SALTZMAN M. D., J. ORG. CHEM., 1981, 46, NO 17, 3554-3555
作者:ZORETIC P. A.、 GOLEN J. A.、 SALTZMAN M. D.
DOI:——
日期:——
Duhamel, Pierre; Dujardin, Gilles; Hennequin, Laurent, Journal of the Chemical Society. Perkin transactions I, 1992, # 3, p. 387 - 396
作者:Duhamel, Pierre、Dujardin, Gilles、Hennequin, Laurent、Poirier, Jean-Marie
DOI:——
日期:——
Total Synthesis of Epoxyeujindole A
作者:Zhaohong Lu、Hailong Li、Ming Bian、Ang Li
DOI:10.1021/jacs.5b09198
日期:2015.11.4
The total synthesis of epoxyeujindole A, a structurally unusual indole diterpenoid isolated from Eupenicillium javanicum, has been accomplished for the first time. The synthesis features a late-stage cationic cyclization strategy, which took advantage of an electron-rich olefinic substrate. The CDE ring system was assembled via an enantioselective conjugate addition/alkylation, a Luche cyclization
首次完成了从 Eupenicillium javanicum 中分离出的结构不寻常的吲哚二萜环氧eujindole A的全合成。该合成采用后期阳离子环化策略,该策略利用了富含电子的烯烃底物。CDE 环系统通过对映选择性共轭加成/烷基化、Luche 环化和 Nozaki-Hiyama-Kishi 反应组装。重度取代的 A 环通过 Suzuki-Miyaura 偶联和阳离子环化构建,桥连的稠合 B 环通过 Prins 反应形成。