Gold(III)‐Catalyzed Intermolecular Oxidation‐Cyclization of Ynones: Access to 4‐Substituted Chroman‐3‐ones
作者:Jian Li、Fang Yang、Yang‐Ting Ma、Kegong Ji
DOI:10.1002/adsc.201900260
日期:2019.4.23
A synthesis of 4‐substituted chroman‐3‐one derivatives has been developed through a gold(III) catalyzed oxidation‐cyclization of ynones in good to excellent yield using easily prepared substrates. A broad range of synthetically useful functional groups (halide, alkene, alkyne, phenolic hydroxyl) were tolerated. Further application of this method paves a new way to prepare the skeleton of oblarotenoids
通过使用易于制备的底物,通过金(III)催化的炔酮氧化环化反应,开发了4-取代的chroman-3-one衍生物的合成方法。宽泛的合成上有用的官能团(卤化物,烯烃,炔烃,酚羟基)是可以耐受的。该方法的进一步应用为制备扁柏烯类化合物的骨架开辟了一条新途径。还介绍了用于构建吡喃并[2,3-c] chromen-1(5H)-one衍生物的级联氧化环化方法。