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在活化吡啶盐的硝基衍生物作用下,可以选择性地高产率地生成苯酚的邻位单硝基化合物。例如将NO_2-N_2O_4混合物通入N-癸基吡啶烟酸盐中生成相应
The ortho-mononitro compound of phenol can be selectively produced with high yields by the action of a nitro derivative of activated pyridinium salt. For example, the N 2 -N_2O_4 mixture is passed into N-decyl pyridine nicotinate to generate correspondingly