Double Carbonylation Using Glyoxal (HCOCOH): A Practical Copper-Promoted Synthesis of Isatins from Primary and Secondary Anilines
作者:Suzie Hui Chin Kuan、Wei Sun、Lu Wang、Chungu Xia、Meng Guan Tay、Chao Liu
DOI:10.1002/adsc.201700583
日期:2017.10.25
(glyoxal) as the double carbonylation reagent. Simple CuCl2⋅2H2O (copper(II) chloride dihydrate) was used as the oxidant for this transformation. Under optimized reaction conditions, various primary and secondary anilines were double-carbonylated to afford their corresponding isatins (26 examples, up to 80% yields).