D’Auria, Maurizio; De Mico, Antonella; D’Onofrio, Franco published the article 《An unusual photochemical reaction of indene with furan and thiophene derivatives》. Keywords: photochem substitution reaction halofuran halothiophene; furan indenyl; thiophene indenyl; iodofuran iodothiophene photochem substitution reaction.They researched the compound: 5-Iodo-2-furaldehyde( cas:2689-65-8 ).Electric Literature of 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.
Photochem. substitution of iododfurans or iodothiophenes by indene gave 2-indenylfurans or -thiophenes. E.g., irradiation of 5-iodofuran-2-carboxaldehyde in MeCN in the presence of indene gave the substitution product I.
As far as I know, this compound(2689-65-8)Electric Literature of C5H3IO2 can be applied in many ways, which is helpful for the development of experiments. Therefore many people are doing relevant researches.
Reference:
1,8-Naphthyridine – Wikipedia,
1,8-Naphthyridine | C8H6N2 – PubChem