The author of 《Selective Ortho Thiolation Enabled by Tuning the Ancillary Ligand in Palladium/Norbornene Catalysis》 were Cai, Wenqiang; Gu, Zhenhua. And the article was published in Organic Letters in 2019. Electric Literature of C10H7I The author mentioned the following in the article:
Site-selective introduction of a sulfur group into aromatic compounds is essential and useful in organic, material, and pharmaceutical chem. A palladium/norbornene-catalyzed chemoselective ortho thiolation of aryl halides was reported. The selectivity of reductive elimination for C(Ar)-SR bond formation was well controlled by tuning the ancillary ligand in the aryl-NBE palladacycle Pd(IV) intermediate. The reaction showcased good substrate scope: both S-alkyl and S-aryl thiosulfonates were compatible. In the part of experimental materials, we found many familiar compounds, such as 1-Iodonaphthalene(cas: 90-14-2Electric Literature of C10H7I)
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.Electric Literature of C10H7I
Referemce:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com