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The general procedure for the synthesis of N-benzoylphenylhydroxylamine from benzaldehyde and nitrobenzene: the reaction was carried out under the catalytic conditions of different imidazolium and triazolium salts, and it was found that triazolium salts with lower spatial site resistance significantly increased the yield of the product, N-benzoylphenylhydroxylamine (see Table 1). The experimental results showed that the reaction could be carried out efficiently even at catalyst concentrations as low as 0.125 mol%. Table 1 details the reaction conditions for the preparation of N-benzoylphenylhydroxylamine.