作者:Ling Zhang、Tongxiang Cao、Huanfeng Jiang、Shifa Zhu
DOI:10.1002/anie.201915212
日期:2020.3.16
An unprecedented deconstructive reorganization strategy for the de novo synthesis of hydroxylated benzofurans from kojic acid- or maltol-derived alkynes is reported. In this reaction, both the benzene and furan rings were simultaneously constructed, whereas the pyrone moiety of the kojic acid or maltol was deconstructed and then reorganized into the benzene ring as a six-carbon component. Through this
报道了一种空前的解构重组策略,用于从曲酸或麦芽酚衍生的炔烃从头合成羟基化苯并呋喃。在该反应中,同时构造了苯环和呋喃环,而曲酸或麦芽酚的吡喃酮部分被解构,然后以六碳组分重组为苯环。通过这种策略,以取代模式可调节的方式将至少一个游离羟基引入苯环,而无需进行保护-脱保护和氧化还原调节。通过这种方法,已经有效地制备了具有不同取代模式的大量羟基化苯并呋喃衍生物。