Synthesis of the Tetrahydropyran Subunit (C8-C20 Fragment) of (-)-Dactylolide and (-)-Zampanolide
作者:Ch. Reddy、B. Srikanth
DOI:10.1055/s-0029-1219931
日期:2010.6
The asymmetric synthesis of the tetrahydropyran con taining C8-C20 fragment, a common key subunit of both (-)-dactylolide and (-)-zampanolide, is described. The salient feature of this synthesis is the extension of carbon chains using alkynols followed by the use of an alkyne system to generate the desired functionalities, in particular formation of the embedded pyran via an intramolecular oxa-Michael
描述了包含 C8-C20 片段的四氢吡喃的不对称合成,这是 (-)-dactylolide 和 (-)-zampanolide 的共同关键亚基。这种合成的显着特点是使用炔醇延长碳链,然后使用炔烃系统产生所需的功能,特别是通过分子内 oxa-Michael 加成 β-羟基炔酮形成嵌入的吡喃。