作者:Stone Woo、Christopher S. P. McErlean
DOI:10.1021/acs.orglett.9b01402
日期:2019.6.7
strigolactone, heliolactone, has remained ambiguous. The total synthesis of heliolactone is described, with the key bond-forming event being a Stille cross-coupling that relied upon a reversal of the nucleophile–electrophile coupling partners. Spectroscopic analysis of synthetic heliolactone (and other stereoisomers) and comparisons with the isolated material enabled the absolute and relative stereochemistry
到现在为止,非规范性的硬脂酸内酯(Heliolactone)的相对立体化学一直是模棱两可的。描述了乙酰内酯的总合成,关键的键形成事件是Stille交叉偶联,其依赖于亲核试剂-亲电子偶联配偶体的逆转。合成乙酰丙内酯(和其他立体异构体)的光谱分析以及与分离出的材料进行比较,可以确保乙酰丙内酯的绝对和相对立体化学。