Asymmetric synthesis of the (2S,4S,6S)-2,4,6-trimethylnonyl subunit of siphonarienes

作者: David D. Diaz , Fernando R. P. Crisóstomo , Víctor S. Martín

DOI: 10.1560/Y4CF-YM5A-N6FE-QBWF

关键词: HydrideChemistryAlcoholEnantioselective synthesisProtein subunitLewis acids and basesStereochemistry

摘要: The paper describes an asymmetric approach to the synthesis of (2S,4S,6S)-2,4,6-trimethylnonyl segment siphonarienes. key step used is a newly developed methodology obtain sec-dialkyl acetylenes based on theintramolecular hydride transfer from secondary γ-benzyloxy group with well-defined absolute stereochemistry, ensured by Sharpless epoxidation reaction, cation generated Lewis acid treatment tertiary Co 2 (CO) 6 -complexed propargylic alcohol.

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