Direct Cross-Coupling of Alcohols with O-Nucleophiles Mediated by N-Iodosuccinimide As a Precatalyst under Mild Reaction Conditions

We report N-iodosuccinimide as the most efficient and selective precatalyst among the N-halosuccinimides for dehydrative O-alkylation reactions between various alcohols under high-substrate concentration reaction conditions. The protocol is non-metal, one-pot, selective, and easily scalable, with excellent yields; enhancing the green chemical profiles of these transformations.