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A mild,efficient and regioselective method for the mononitration of phenolic compounds is described using bismuth subnitrate/ charcoal in the presence of trichloroisocyanuric acid in CH_2Cl_2 at room temperature.
A mild, efficient and regioselective method for the mononitration of phenolic compounds is described using bismuth subnitrate / charcoal in the presence of trichloroisocyanuric acid in CH 2 Cl 2 at room temperature.