O. Koval’chukova, A. Stash, V. K. Bel’skii
Oct 11, 2009
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Journal
Crystallography Reports
Abstract
The oxidative nitration of 2-amino-3-hydroxypyridine in the presence of rare-earth metal cations allocates 2-ethoxy-3-hydroxy-4,6-dinitropyridine (I) as one of the reaction products. Treating compound I with a sodium hydroxide solution gives diaquasodium bis(2-ethoxy-3-hydroxy-4,6-dinitropyridinate) (II). The molecular and crystal structures of I and II were studied. The compounds were characterized by spectroscopic methods (IR and electronic absorption spectroscopy). The acidic dissociation constant of compound I was evaluated.