A protecting-group-free synthesis of (+)-nephrosteranic, (+)-protolichesterinic, (+)-nephrosterinic, (+)-phaseolinic, (+)-rocellaric acids and (+)-methylenolactocin
作者:Jothi L. Nallasivam、Rodney A. Fernandes
DOI:10.1039/c6ob02398c
日期:——
A collective synthesis of a γ-butyrolactone class of paraconic acids such as (+)-methylenolactocin, (+)-phaseolinic acid, (+)-nephrosteranic acid, (+)-nephrosterinic acid, (+)-rocellaric acid and (+)-protolichesterinic acid is described. The strategy adopted is protecting-group-free based on efficient Pd-catalyzed Suzuki–Miyaura coupling and Ru-catalyzed Sharpless oxidation to construct the core β
γ-丁内酯类的对锥酸的集体合成,如(+)-甲基烯酸内酯,(+)-菜豆酸,(+)-肾甾酸,(+)-肾甾酸,(+)-二十二烷酸和(+ )描述了原脂白素酸。采取的策略是保护基团的自由基于高效的Pd-催化的Suzuki-Miyaura偶联和Ru催化的夏普勒斯氧化来构建芯β-CO 2 H-γ丁内酯单元来完成的各种paraconic酸的合成方法。