作者:Xin-Fang Duan、Jian-Xia Feng、Zhan-Bin Zhang
DOI:10.1055/s-0029-1217129
日期:2010.2
A novel and convenient two-step synthesis of 2-arylbenzofurans is described which proceeds via a selective cross-pinacol-type coupling between a salicylaldehyde and an aromatic aldehyde, followed by an acid-promoted cyclization. One advantage of this method is that separation of the three possible pinacol products that can form during the cross-coupling is not necessary. This method is also applied to the synthesis of the 2-arylbenzofuran-containing natural product, homoegonol.
该方法通过水杨醛和芳香醛之间的选择性交叉频哪醇型偶联,然后进行酸促进环化,从而合成 2-芳基苯并呋喃。这种方法的优点之一是无需分离交叉偶联过程中可能形成的三种频哪醇产物。这种方法还可用于合成含 2-芳基苯并呋喃的天然产物高根醇。