作者:Marc Lafrance、Nicole Blaquiere、Keith Fagnou
DOI:10.1002/ejoc.200600674
日期:2007.2
aporphines by reaction with benzodioxole, pyridine N-oxide and pyrazine N-oxide. Successful application of direct arylation in these diversification reactions highlights its utility not only in convergent, but also in divergent synthesis. We also describe enantioselective syntheses of (R)-nornuciferine and (R)-nuciferine employing a catalytic asymmetric transfer hydrogenation in high yield and excellent enantiomeric
钯催化的芳基氯化物、溴化物和碘化物的直接芳基化已被应用于通过与苯并二恶唑、吡啶 N-氧化物和吡嗪 N-氧化物反应制备新的阿朴啡类似物,包括 C2 取代的阿朴啡。直接芳基化在这些多样化反应中的成功应用突出了其不仅在收敛合成中而且在发散合成中的效用。我们还描述了 (R)-nornuciferine 和 (R)-nuciferine 的对映选择性合成,采用催化不对称转移氢化以高产率和优异的对映体过量。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2007)