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1 Polish Journal of Chemistry

1 2008

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Synthesis, Structures, and Antimicrobial Activity of Two Schiff Bases Derived from 3-Hydroxybenzohydrazide and 3-Alkoxysalicylaldehyde

Wang F. H., Wei Y. I., Zhu Q. Y.

Polish Journal of Chemistry

2008

Vol. 82, nr 11

2089-2094

Two isostructural Schiff base compounds, N c-[(2-hydroxy-3-methoxy)benzylidene]-3-hydroxybenzohydrazide monohydrate (1) and N c-[(2-hydroxy-3-ethoxy)benzyl idene]-3-hydroxybenzohydrazide monohydrate (2), have been synthesized by the condensation of 3-hydroxybenzohydrazide with 3-methoxysalicylaldehyde and 3-ethoxy salicyl aldehyde, respectively. The compounds have been characterized by el e men tal anal y sis, IR spectra, and single crystal X-ray diffraction. Each compound consists of a Schiff base molecule and a water of crystallization. In the crystal, molecules are linked through intermolecular O-HźźźO and N-HźźźO hydrogen bonds, forming layers parallel to the bc plane. The antimicrobial activity of the compounds has been tested.