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 Synthesis based on formylfuro(2,3-b) benzothiachromone, published in 1974, which mentions a compound: 2689-65-8, mainly applied to furobenzothiachromone, Safety of 5-Iodo-2-furaldehyde.
ο[(5-Formyl-2-furyl)thio]-benzoic acid, obtained from reaction of ο-mercaptobenzoic acid with 5-iodofurfural, cyclized (polyphosphoric acid) to give the furobenzothiachromone I (R = CHO), which when treated with HONH2 gave I (R = CH:NOH). The latter was converted (Ac2O) to the nitrile I (R = CN), hydrolysis (polyphosphoric acid) of which gave the expected amide I (R = CONH2).
This literature about this compound(2689-65-8)Safety of 5-Iodo-2-furaldehydehas given us a lot of inspiration, and I hope that the research on this compound(5-Iodo-2-furaldehyde) can be further advanced. Maybe we can get more compounds in a similar way.
Reference:
1,8-Naphthyridine – Wikipedia,
1,8-Naphthyridine | C8H6N2 – PubChem