Rodgriguez, M.; Fernandez Bertran, J. published the article 《Solvent effect on rotational isomerism of furfural and its 5-substituted derivatives》. Keywords: solvent effect isomerism furfural; substituent effect isomerism furfural; rotamer population furfural; coupling constant furfural; PMR solvent effect furfural.They researched the compound: 5-Iodo-2-furaldehyde( cas:2689-65-8 ).Formula: C5H3IO2. Aromatic heterocyclic compounds can be divided into two categories: single heterocyclic and fused heterocyclic. In addition, there is a lot of other information about this compound (cas:2689-65-8) here.
The solvent effect on the rotamer distribution of I (R = H) was determined from the 5Jα,4 and the 6Jα,5 in the PMR; 5Jn was inversely proportional to 6J. Polar solvents favored the cis-OO population. The substituent effect on the equilibrium was determined from the 5J for I (R = NO2, Cl, Br, I, Me2N); electron donating substituents also favored the cis-OO rotamer.
In some applications, this compound(2689-65-8)Formula: C5H3IO2 is unique.If you want to know more details about this compound, you can contact with the author or consult more relevant literature.
Reference:
1,8-Naphthyridine – Wikipedia,
1,8-Naphthyridine | C8H6N2 – PubChem