SDS of cas: 2689-65-8. The protonation of heteroatoms in aromatic heterocycles can be divided into two categories: lone pairs of electrons are in the aromatic ring conjugated system; and lone pairs of electrons do not participate. Compound: 5-Iodo-2-furaldehyde, is researched, Molecular C5H3IO2, CAS is 2689-65-8, about Proton-acceptor capacity of aromatic and heterocyclic carbonyl compounds at the hydrogen bond formation stage. II. 5-Substituted furfurals. Author is Shkumat, A. P.; Polyakov, V. K.; Tsukerman, S. V..
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.
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Reference:
1,8-Naphthyridine – Wikipedia,
1,8-Naphthyridine | C8H6N2 – PubChem