Rh-Catalyzed Annulation of Benzoic Acids, Formaldehyde, and Malonates via <i>ortho</i>-Hydroarylation to Indanones
作者:Shuling Yu、Ningning Lv、Chao Hong、Zhanxiang Liu、Yuhong Zhang
DOI:10.1021/acs.orglett.0c02986
日期:2020.11.6
A three-component reaction from readily available low-cost materials of benzoic acids, formaldehyde, and malonates for the preparation of indanones by rhodium catalysis is reported. The annulation is initiated by an ortho-hydroarylation of benzoic acids, and a Lewis acid is not required. The solvent has a significant influence to the reaction, and 2-substituted or nonsubstituted indanones are obtained
据报道,由廉价的苯甲酸,甲醛和丙二酸酯的廉价原料进行三组分反应,可通过铑催化制备茚满酮。通过苯甲酸的邻-氢芳基化来引发环化,并且不需要路易斯酸。溶剂对反应有重大影响,并且通过改变溶剂获得2-取代或未取代的茚满酮。