An iron(II)-catalyzed three-component reaction was developed for the construction of trichloromethylated 3-benzylquinoxalin-2(1H)-ones. This reaction was conducted through the trichloromethylation of alkenes with quinoxalin-2(1H)-ones using commercially available chloroform as trichloromethyl radical source, which provided a convenient approach toward trichloromethylated 3-benzylquinoxalin-2(1H)-ones.
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