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- W4367011207 abstract "An enantioselective synthesis of (–)-stemoamide is presented. Noyori’s ruthenium complex catalyzed asymmetric transfer hydrogenation of an alkynone delivered the (<i>S</i>)-C8 stereogenic center in 97.7% ee. An iron(III) chloride promoted and bioinspired <i>N</i>-iminium ion cyclization afforded a 3:1 ratio of two diastereomers in favor of the <i>cis</i>-isomer. The diastereomeric ratio was enriched to 50:1 by a silver-catalyzed cycloisomerization. The subsequent dynamic ruthenium-catalyzed CO-insertion reaction secured an enantioselective total synthesis of (–)-stemoamide in 18% overall yield with high optical purity." @default.
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- W4367011207 date "2012-10-25" @default.
- W4367011207 modified "2023-10-17" @default.
- W4367011207 title "Enantioselective Synthesis of (–)-Stemoamide" @default.
- W4367011207 doi "https://doi.org/10.1055/s-0032-1317499" @default.
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