Process for producing aminonitropyridines

Details Process for producing aminonitropyridines Process for producing aminonitropyridines

1996-03-28

1997-07-15

Davis, Zinna Northington

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

546286, 546287, C07D21373, C07D21384

Patent

active

056484968

ABSTRACT:
A process for producing an aminonitropyridine represented by the general formula [1], which comprises reacting a nitropyridine represented by the general formula [2] (wherein X.sup.1, X.sup.2 and X.sup.3 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 R.sup.4 is a hydrogen atom, an alkyl group, a cycloalkyl group or an aralkyl group; and R.sup.5 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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Marian Wozniak et al., Regioselectivity of the Amination . . . , Liebigs Ann. Chem., 875, 1991.
Boyer et al., 2, 3-T-Dinitrosopyridines, J. Am. Chem. Soc. 78, 423, 1956.

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