Rh(III)-Catalyzed Cascade Nucleophilic Addition/Annulation of 2-Diazo-1,3-diketones with 1,3-Dicarbonyl Compounds To Access 6,7-Dihydrobenzofuran-4(5<i>H</i>)-ones
作者:Yinsong Wu、Xinwei He、Mengqing Xie、Ruxue Li、Yi Ning、Jiahui Duan、Enshen Zhang、Yongjia Shang
DOI:10.1021/acs.joc.1c00259
日期:2021.6.4
A Rh(III)-catalyzed cascade nucleophilic addition/intramolecular annulation of 2-diazo-1,3-diketones with 1,3-dicarbonyl compounds (e.g., 1,3-diketones and β-keto esters) is achieved to afford 6,7-dihydrobenzofuran-4(5H)-ones in up to 91% yields. Notably, a wide range of substrates and functional groups were well-tolerated under the optimized reaction conditions to give desired products in moderate
2-重氮-1,3-二酮与1,3-二羰基化合物(例如1,3-二酮和β-酮酯)的Rh(III)催化级联亲核加成/分子内环化得到6, 7-dihydrobenzofuran-4(5 H )-ones 的产率高达 91%。值得注意的是,在优化的反应条件下,广泛的底物和官能团具有良好的耐受性,以中等至优异的产率得到所需产物,同时释放出 N 2和 H 2 O 作为副产物。此外,所描述的方法是可扩展的,适用于后期功能化。