Asymmetric synthesis of the (2<i>S</i>,4<i>S</i>,6<i>S</i>)-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
日期:2001.12
methodology to obtain sec-dialkyl acetylenes based on the intramolecular hydride transfer from a secondary γ-benzyloxy group with well-defined absolute stereochemistry, ensured by a Sharpless asymmetric epoxidation reaction, to a cation generated by Lewis acid treatment of a tertiary Co2(CO)6-complexed propargylic alcohol.
本文描述了一种不对称的合成方法,合成了虹吸管的(2 S,4 S,6 S)-2,4,6-三甲基壬基链段。所使用的关键步骤是一种新开发的方法,该方法基于分子内氢化物从具有明确定义的绝对立体化学的仲γ-苄氧基转移到路易斯酸生成的阳离子的分子内氢化物而获得仲二烷基乙炔Co 2(CO)6络合的炔丙醇的处理。