An efficient two-step synthesis of O-(2,4-dinitrophenyl)hydroxylamine is described along with a comparison of its aminating efficiency with O-mesitylenesulfonylhydroxylamine (MSH). It was used in an expedient N-amination/benzoylation procedure involving various substituted pyridines, leading to polysubstituted N-benzoyliminopyridinium ylides, and the scope of its amination power was studied.

中文翻译：

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O-（2,4-二硝基苯基）羟胺的高效合成。在合成取代的N-苯甲酰亚氨基吡啶鎓盐中的应用。

描述了一种有效的两步合成O-（2,4-二硝基苯基）羟胺的方法，并比较了其与O-次甲基亚磺酰基羟胺（MSH）的胺化效率。它被用于方便的N-氨基化/苯甲酰化过程，涉及各种取代的吡啶，导致多取代的N-苯并亚氨基吡啶基吡啶化，并研究了其胺化能力的范围。