From Anilines to Isatins: Oxidative Palladium-Catalyzed Double Carbonylation of CH Bonds
作者:Wu Li、Zhengli Duan、Xueye Zhang、Heng Zhang、Mengfan Wang、Ru Jiang、Hongyao Zeng、Chao Liu、Aiwen Lei
DOI:10.1002/anie.201410321
日期:2015.2.2
A novel palladium‐catalyzed CH double carbonylation introduces two adjacent carbonyl groups for the synthesis of isatins from readily available anilines. The reaction proceeds under atmospheric pressure of CO with high regioselectivity and without any additives. Density functional theory investigations indicate that the palladium‐catalyzed double carbonylation catalytic cycle is plausible.
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).