Palladium-catalyzed triple coupling of 2-iodoanisoles with aryl iodides to access 6H-dibenzopyrans was written by Chen, Li-Ping;Cheng, Shu-Lin;Fan, Xin-Yue;Zhu, Ji-Fa;Wang, Bi-Qin;Feng, Chun;Xiang, Shi-Kai. And the article was included in Organic Chemistry Frontiers in 2022.Application of 5460-32-2 This article mentions the following:
A palladium-catalyzed triple coupling of 2-iodoanisoles with aryl iodides was developed. 3-Methyl-2-pyridone was used as a ligand to accelerate the cross-coupling and suppress the homo-coupling of 2-iodoanisoles. A variety of 6H-dibenzopyran derivatives such as I [R = H, F, Cl, etc., R1 = 4-Me, 4-F, 4-MeO, etc.; R2 = 8-Me, 8-Cl, 8-Ph, etc.] was prepared by this method. In the experiment, the researchers used many compounds, for example, 4-Iodo-1,2-dimethoxybenzene (cas: 5460-32-2Application of 5460-32-2).
4-Iodo-1,2-dimethoxybenzene (cas: 5460-32-2) belongs to iodide derivatives. Generally organic iodides can be divided into two classes of alkyl iodides and aryl iodides. Typical reactions of alkyl iodides include nucleophilic substitution, elimination, reduction, and the formation of organometallics. A typical method for synthesis of aromatic iodides is diazotization of primary aromatic amines followed by treatment of potassium iodide. Aliphatic alcohols are converted to alkyl iodides by treating with hydrogen iodide.Application of 5460-32-2
Referemce:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com