No abstract

A novel and efficient metal‐free approach has been disclosed for the deoxygenation of amine N‐oxides to amines and sulfoxides to corresponding sulfides using the green and economical reagent I2/K2S2O8. Deoxygenation of pyridine N‐oxide, quinoline N‐oxide, N,N‐dialkylaniline N‐oxides, trialkylamine N‐oxides and aryl sulfoxides have been achieved in excellent yields. This method has been proven to be applicable to a wide range of substrates. A broad range of functional groups were well tolerated in this reaction system.

A convenient and novel approach has been developed for the synthesis of unsymmetrical diaryl sulfides by the reaction of sulfonyl hydrazides with phenols, aromatic amines and heterocycles using a [Bmim][Br] ionic liquid through C–S bonds formation.