Ring Expansions of β-Keto Lactones with Zinc Carbenoids: Syntheses of (+)-Patulolide A and (±)-Patulolide B
作者:Matthew D. Ronsheim、Charles K. Zercher
DOI:10.1021/jo0264776
日期:2003.3.1
A one-pot ring expansion/oxidation/elimination method has been developed in which beta-keto lactones are converted efficiently to alpha,beta-unsaturated-gamma-keto lactones. The reaction can be successfully applied to a variety of ring sizes. Alkene stereochemistry is dependent upon ring size and reaction conditions. The method was applied to the synthesis of (+)-patulolide A.
已经开发了一种一锅环膨胀/氧化/消除方法,其中β-酮内酯被有效地转化为α,β-不饱和-γ-酮内酯。该反应可以成功地应用于各种环尺寸。烯烃的立体化学取决于环的大小和反应条件。该方法适用于(+)-广pat香酚A的合成。