The author of 《Palladium-Catalyzed Regio- and Stereoselective Synthesis of (E)-1,3-Bissilyl-6-arylfulvenes from Aryl Iodides and Silylacetylenes》 were Suzuki, Souta; Kinoshita, Hidenori; Miura, Katsukiyo. And the article was published in Organic Letters in 2019. Safety of 1-Iodonaphthalene The author mentioned the following in the article:
An efficient synthetic route to (E)-1,3-bissilyl-6-arylfulvenes has been developed. The reaction of aryl iodides with trimethylsilylacetylene in the presence of a catalytic amount of PdBr2 gives 6-aryl-1,3-bis(trimethylsilyl)fulvenes in good to excellent yields with complete regio- and stereoselectivity. The reaction involves trimerization of trimethylsilylacetylene and cleavage of one silyl group. The silylated fulvenes obtained could be converted into halogenated fulvenes by site-selective halodesilylation. The halogenated fulvenes underwent the Stille coupling leading to the corresponding arylated fulvenes. After reading the article, we found that the author used 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