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Nitration of Some Derivatives of 2‐Methylaminopyridine N‐Oxides The only stable products obtained from nitrations of 2‐methylaminopyridine N‐oxide and some derivatives, are those resulting from nitration of the pyridine ring. Thus, 2‐methyl‐aminopyridine N‐oxide 8 is nitrated under mild conditions to yield 2‐methylamino‐5‐nitropyridine N‐oxide 9, but not 2‐methylnitraminopyridine‐N‐oxide 10 is obtained. 2‐Methylamino‐4‐nitropyridine N‐oxide 1 yields 2‐methylamino‐4,5‐dinitropyridine N‐oxide 2 upon nitration. Chemical reactions which relate known compounds to the new compounds obtained, confirm the assigned structures.

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