- Zinc-promoted direct amination of nitropyridines with methoxyamine via vicarious nucleophilic substitution
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Direct animation of nitropyridines with methoxyamine in the presence of a stoichiometric amount of zinc(II) chloride under basic conditions proceeds to give aminonitropyridines.
- Seko, Shinzo,Miyake, Kunihito
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p. 1519 - 1520
(2007/10/03)
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- Process for producing aminonitropyridines
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A process for producing an aminonitropyridine represented by the general formula [1], which comprises reacting a nitropyridine represented by the general formula [2] (wherein X1, X2 and X3 indicate a hydrogen atom, a halogen atom, a nitro group, a cyano group, an aryl group, an aromatic heterocycle or an alkyl group, etc.; Y is an oxygen atom; and n is 0 or 1) with an O-substituted hydroxylamine represented by the general formula [3] (wherein R4 is a hydrogen atom, an alkyl group, a cycloalkyl group or an aralkyl group; and R5 is an alkyl group or an aralkyl group) or a salt thereof in the presence of a base and a metal catalyst. STR1
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