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 Palladium-Catalyzed Cross-Coupling of Indium Homoenolate with Aryl Halide with Wide Functional Group Compatibility, published in 2011-02-04, which mentions a compound: 2689-65-8, Name is 5-Iodo-2-furaldehyde, Molecular C5H3IO2, COA of Formula: C5H3IO2.
An efficient palladium-catalyzed cross-coupling of indium homoenolate with aryl halide is described. The reactions proceeded efficiently in DMA at 100 °C to afford the desired products of β-aryl ketones in moderate to good yields. Various important functional groups including ketone, ester, aldehyde, nitrile, hydroxide, and nitro groups can be well tolerated in the protocol.
After consulting a lot of data, we found that this compound(2689-65-8)COA of Formula: C5H3IO2 can be used in many types of reactions. And in most cases, this compound has more advantages.
Reference:
1,8-Naphthyridine – Wikipedia,
1,8-Naphthyridine | C8H6N2 – PubChem