Safety of 1-IodonaphthaleneIn 2020 ,《Cu2O Nanocrystals-Catalyzed Photoredox Sonogashira Coupling of Terminal Alkynes and Arylhalides Enhanced by CO2》 appeared in ChemSusChem. The author of the article were Shanmugam, Munusamy; Sagadevan, Arunachalam; Charpe, Vaibhav Pramod; Pampana, V. Kishore Kumar; Hwang, Kuo Chu. The article conveys some information:
The first visible-light-activated Sonogashira C-C coupling reaction at room temperature catalyzed by single-metal heterogeneous Cu2O truncated nanocubes (Cu2O TNCs) was developed. A wide variety of aryl halides and terminal alkynes worked well in this recyclable heterogeneous photochem. process and formed the corresponding Sonogashira C-C coupling products in good yields. Mechanistic control studies indicated that CO2 enhances the formation of light-absorbing heterogeneous surface-bound CuI-phenylacetylide (λmax=472 nm), which further underwent single-electron transfer with aryl iodides/bromides to enable Sonogashira Csp2-Csp bond formation. In contrast to literature-reported bimetallic TiO2-containing nanoparticles as photocatalyst, this work avoided the need of cocatalysis by TiO2. Single-metal CuI in Cu2O TNCs was solely responsible for the observed Csp2-Csp coupling reactions under CO2 atmosphere. In the part of experimental materials, we found many familiar compounds, such as 1-Iodonaphthalene(cas: 90-14-2Safety of 1-Iodonaphthalene)
1-Iodonaphthalene(cas: 90-14-2) is one of organic iodides. The carbon-iodine bond is weaker than other carbon-halogen bonds due to the poor electronegative nature of the iodine atom. In general, organic iodides are light-sensitive and turn yellow during storage, owing to the formation of iodine. Organic iodides can be alkyl, alkenyl, or alkynyl, and all of them are very reactive toward with many kinds of nucleophiles.Safety of 1-Iodonaphthalene
Referemce:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com