Synthesis of <i>N</i>-Bromo and <i>N</i>-Iodo Imides: A Rapid Redox-Neutral and Bench Stable Process

This report presents a rapid, ecofriendly technique for the formation of commonly used <i>N</i>-bromo and <i>N</i>-iodinating reagents by reacting readily available <i>N</i>-chloro derivatives with inorganic bromide and iodide salts. All reagents were easily handled, commercially available, and bench stable. This strategy illustrates the expeditious formation of these halogenating reagents in multigram scale in high-yields and purity with an operationally straightforward recrystallization. The mechanistic details suggest an in situ generation of an interhalogen species.