In organic chemistry, atoms other than carbon and hydrogen are generally referred to as heteroatoms. The most common heteroatoms are nitrogen, oxygen and sulfur. Now I present to you an article called Furan derivatives. LV. Kinetics of condensation of 5-nitrofurfuryl sulfones with aldehydes, published in 1975, which mentions a compound: 2689-65-8, mainly applied to kinetics condensation aldehyde nitrofurfuryl sulfone; substituent effect condensation aldehyde nitrofurfuryl sulfone; reaction constant condensation aldehyde nitrofurfuryl sulfone; furfuryl sulfone condensation aldehyde nitrofurfuryl sulfone, Product Details of 2689-65-8.
The kinetics of the condensation of I with II (R = H, Me, iodo, Cl, Br, CO2Me NO2) or III (R = H, NO2, Cl, Br, CO2H, CO2Et, Me, MeO, NHAc) [to give, resp., the corresponding (E)-IV or (E)-V, examined in NH4OAc-piperidine at 118° or MeOH-piperidine at 40°, were 2nd order. The log k was linearly related with σp+. The pKa of I and of 5-nitrofurfuryl Me sulfone (VI) were determined and the rates of the condensation of I or VI with III (R = NO2) indicated that steric factors were more important in the condensation than was the sulfone acidity.
In some applications, this compound(2689-65-8)Product Details of 2689-65-8 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