《Sequential One-Pot Coupling Reactions of Diiodobenzenes, Propiolic Acid, and Aryl Halides for the Synthesis of Diarylalkynyl Arenes》 was published in Asian Journal of Organic Chemistry in 2020. These research results belong to Ryu, Beomseok; Oh, Jonghoon; Lee, Sunwoo. Reference of 1-Bromo-4-iodobenzene The article mentions the following:
Diiodobenzenes were employed in palladium-catalyzed one-pot sequential reactions with propiolic acid and aryl halides to provided the corresponding diarylalkynyl benzenes. The combination of Pd(PPh3)4 (10 mol %) and DBU (5.0 equiv) gave optimal results in the sequence. Reactions with 1,2-diiodobenzene gave higher yields than those utilizing 1,3- and 1,4-diiodobenzenes. Furthermore, benzenes bearing electron-donating substituents gave higher yields than those with electron-withdrawing substituents. In the experimental materials used by the author, we found 1-Bromo-4-iodobenzene(cas: 589-87-7Reference of 1-Bromo-4-iodobenzene)
1-Bromo-4-iodobenzene(cas: 589-87-7) has been employed as reagent for in situ desilylation and coupling of silylated alkynes, as starting reagent in the total syntheses of ent-conduramine A and ent-7-deoxypancratistatin (alkaloids), as substrate in copper-free Sonogashira coupling in aqueous acetone in synthesis of β,β,dibromostyrenesReference of 1-Bromo-4-iodobenzene
Referemce:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com