Synthesis and Supramolecular Structure of 1-(4-{[(E)-3,5-Dibromo-2- hydroxybenzylidene]amino}phenyl)ethanone O-benzyloxime

Abstract

Oxime-type compounds are a traditional class of chelating ligands widely used in coordination and analytical chemistry [1][2][3] . They can accommodate one or more metal centers to form complexes with interesting properties and applications 4-6 . In the last few years, a large number of oxime-type compounds and their complexes are reported 7,8 . In present report, the synthesis and crystal structure of 1-(4-{[(E)-3,5-dibromo-2hydroxybenzylidene]amino}-phenyl)ethanone O-benzyloxime are reported. EXPERIMENTAL 4-Aminoacetophenone, O-benzylhydroxylamine, 3,5dibromosalicylaldehyde were purchased and used without further purification. The other reagents and solvents were analytical grade reagents from Tianjin Chemical Reagent Factory. C, H and N analyses were carried out with a GmbH VariuoEL V3.00 automatic elemental analyzer. X-Ray single crystal structure was determined on a Bruker Smart 1000 CCD area detector. Melting points were measured by the use of a microscopic melting point apparatus made in Beijing Taike Instrument Limited Company and the thermometer was uncorrected.General procedure: 1-(4-{[(E)-3,5-Dibromo-2-hydroxybenzylidene]amino}phenyl)-ethanone O-benzyloxime was synthesized by O-benzylhydroxylamine, 4-aminoacetophenone and 3,5-dibromosalicylaldehyde 9 . To an ethanolic solution (6 mL) of O-benzylhydroxylamine (340.9 mg, 3 mmol) was added an ethanol solution (12 mL) of 4-aminoaceto-