Preparation and reactions of samarium diiodide in nitriles

Article abstract of DOI:10.1016/0040-4020(96)00861-7

Samarium diiodide can be prepared from samarium metal in various nitriles. Because of its chemical inertness pivalonitrile is the most suitable solvent. Organic reactions mediated by SmI₂ are slower than in THF, but selectivities are often improved. Reactions are greatly accelerated by addition of catalytic amounts of some transition metal salts.