An unprecedented metal-free regioselective halogenation of 2H-indazoles is reported, and not only realizes the highly selective synthesis of mono-halogenated products, but also complete poly-halogenations.
A simple protocol of metal‐free C−H benzylation on the C3 position of quinoxalin‐2(1H)‐ones via the oxidation of Di‐tert‐butyl peroxide (DTBP) was developed. This environmentally friendly transformation showed high efficiency and well‐tolerated functionalization, providing the desired products in moderate to good yields. The radical mechanism was confirmed by control experiment as well.
Using CF3SO2Na as the CF3 radical source, an eco-friendly approach of electrochemistry-mediated radical cascade cyclization process of N-methacryloyl-2-phenylbenzoimidazoles was described. This reaction tolerated a variety of functional groups and provided...
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