A metal- and solvent-free, one-pot and TFA-promoted method for the construction of hetero/aryl-substituted quinoxalin-2-ones, pyrazin-2(1)-ones, and pyrimidin-4(3)-ones is reported. This method involves the reaction of chloro-derivatives of nitrogen heterocycles with electron-rich arenes/heteroarenes, followed by hydroxylation. This protocol is easy to use, providing access to (hetero)aryl-substituted -heterocycles in good yields.
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| http://dx.doi.org/10.1039/d4ob00882k | DOI Listing |
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