In general, if the atoms that make up the ring contain heteroatoms, such rings become heterocycles, and organic compounds containing heterocycles are called heterocyclic compounds. An article called Proton-acceptor capacity of aromatic and heterocyclic carbonyl compounds at the hydrogen bond formation stage. II. 5-Substituted furfurals, published in 1982-05-31, which mentions a compound: 2689-65-8, Name is 5-Iodo-2-furaldehyde, Molecular C5H3IO2, Recommanded Product: 5-Iodo-2-furaldehyde.
The IR spectral shifts of the OH group of PhOH in the presence of I (R = H, Me, Me2N, Cl, Br, I) and II (R = H, Me, MeO, Cl, Br) were determined and correlated with substituent constants The furan ring displayed electron-donating character to a small extent. The doublet IR bands in the 3100-3600 cm-1 region arose form H bonding of PhOH with the carbonyl O and with the π system of I and II. Transmission coefficients of 0.4 and 0.5 were calculated for the 1,4-phenylene and 2,5-furandiyl groups.
Although many compounds look similar to this compound(2689-65-8)Recommanded Product: 5-Iodo-2-furaldehyde, numerous studies have shown that this compound(SMILES:IC1=CC=C(O1)C=O), has unique advantages. If you want to know more about similar compounds, you can read my other articles.
Reference:
1,8-Naphthyridine – Wikipedia,
1,8-Naphthyridine | C8H6N2 – PubChem