Most of the compounds have physiologically active properties, and their biological properties are often attributed to the heteroatoms contained in their molecules, and most of these heteroatoms also appear in cyclic structures. A Journal, Oriental Journal of Chemistry called Structural, thermal and electrical studies on some transition metal complexes with heterocyclic benzoyl hydrazones, Author is Ishwar, Krishan Mohan, which mentions a compound: 3194-15-8, SMILESS is O=C(C1=CC=CO1)CC, Molecular C7H8O2, Safety of 1-(Furan-2-yl)propan-1-one.
Complexes of Co(II), Ni(II) and Cu(II), [ML2] (HL = 2-propionylfuran benzoylhydrazone, 2-propionylthiophene benzoylhydrazone) were synthesized and characterized by elemental anal., IR, electronic and ESR spectral studies. All the complexes were found to have octahedral geometry from magnetic and electronic spectral data, where ligands bond in a tridentate manner using azomethine nitrogen, carbonyl oxygen and furyl oxygen/sulfur for coordination. EPR study on the Cu(II) complexes indicate appreciable covalent character in the metal-oxygen bond.
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Reference:
Benzoxazole – Wikipedia,
Benzoxazole | C7H5NO – PubChem