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, Doklady Akademii Nauk UzSSR called Infrared spectroscopic study of the condensation reaction of halofurfural with ketones, Author is Usmanov, Z.; Tadzhieva, M. A., which mentions a compound: 2689-65-8, SMILESS is IC1=CC=C(O1)C=O, Molecular C5H3IO2, Recommanded Product: 5-Iodo-2-furaldehyde.
The reactions of furfuryl iodide (I) and bromide (II) with ketones were investigated. NaOH (3-5 ml., 5%), 0.05 mole halofurfural, and 0.8-3 ml. ketone were added to 20 ml. solvent. The reaction lasted 1-2 hrs. The product was precipitated with 30-50 ml. H2O and dried. The light-yellow oily products were investigated in C2H4Cl2 solutions, the crystalline products in pressed KBr disks. The compositions of the condensation products of I with methyl nonyl ketone, methyl naphthyl ketone, and acetophenone were C16H23O2I, C17H11O2I, and C13H9O2I, resp. The condensations of II with methyl alkyl ketones, where the alkyl group was Et, Pr, Bu, amyl, hexyl, isopropyl, and isobutyl, and with acetophenone and acetylacetone, led to C9H9O2Br, C10H11O2Br, C11H13O2Br, C12H15O2Br, C13H17O2Br, C10H11O2Br, C11H13O2Br, C13H9O2Br, and C10H9O3Br, resp. The ir spectra indicate the functional groups present in the various products.
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Reference:
1,8-Naphthyridine – Wikipedia,
1,8-Naphthyridine | C8H6N2 – PubChem