Synthesis of imidazolo[5,4-b]carbazole-4,10-quinones was written by Desforges, Gwenaelle;Bossert, Cecile;Montagne, Cyril;Joseph, Benoit. And the article was included in Synlett in 2004.SDS of cas: 15813-09-9 This article mentions the following:
The preparation of imidazolo[5,4-b]carbazole-4,10-quinones I (R1 = H, EtOCH2; R2 = H, Cl) is described. The key steps of the synthesis are selective halogen-metal exchange of the corresponding 4,5-diiodoimidazoles and subsequent addition of the organometallic compounds formed to the carbonyl group of Et 3-formylindole-2-carboxylate. In the experiment, the researchers used many compounds, for example, 4,5-Diiodo-1H-imidazole (cas: 15813-09-9SDS of cas: 15813-09-9).
4,5-Diiodo-1H-imidazole (cas: 15813-09-9) belongs to iodide derivatives. Organic iodides are organic compounds containing a carbon-iodine (C-I) bond. The carbon-iodine bond is weaker than other carbon-halogen bonds due to the poor electronegative nature of the iodine atom. Alkyl iodides react at a faster rate than alkyl fluorides due to the weak C-I bond.SDS of cas: 15813-09-9
Referemce:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com