作者:Sharna-kay Daley、Nadale Downer-Riley
DOI:10.1055/s-0037-1611975
日期:2019.2
A short and efficient synthesis of balsaminone A, a dinaphthofuran-1,4-dione, is described. The eight-step synthesis features two alternate pathways including a base-induced coupling reaction of 4-methoxy-1-naphthol and 2,3-dichloro-1,4-naphthoquinone, as well as a light-mediated cyclization of 1,1'-binaphthoquinone to afford the dinaphthofurandione core. Subsequent ortho formylation yielded a known
描述了一种短而有效的 balsaminone A(一种 dinaphthofuran-1,4-dione)的合成方法。八步合成具有两条替代途径,包括 4-甲氧基-1-萘酚和 2,3-二氯-1,4-萘醌的碱诱导偶联反应,以及 1,1' 的光介导环化-二萘醌以提供二萘并呋喃二酮核。随后的邻甲酰化产生了 balsaminone A 的已知前体,以 20-27% 的产率提供天然产物。这表示与之前合成的 7.4% 产率相比适度增加。