Pseudocyclic bis-N-heterocycle-stabilized iodanes - synthesis, characterization and applications

Article abstract of DOI:10.1039/d1cc03097c

Bis-N-heterocycle-stabilized λ³-iodanes (BNHIs) based on azoles are introduced as novel structural motifs in hypervalent iodine chemistry. A performance test in a variety of benchmark reactions including sulfoxidations and phenol dearomatizations revealed a bis-N-bound pyrazole substituted BNHI as the most reactive derivative. Its solid-state structure was characterizedviaX-ray analysis implying strong intramolecular interactions between the pyrazole nitrogen atoms and the hypervalent iodine centre.