Beckmann rearrangement of oximes catalyzed by cyanuric chloride in ionic liquids

The Beckmann rearrangement of a variety of ketoximes has been carried out in imidazolium –based ionic liquids in the presence of catalytic amounts of 2,4,6-trichloro [1,3,5] triazine. This mild and “green” procedure is highly regioselective affording the corresponding N-substituted amides in very good to quantitative yields. The ionic liquids were easily recovered and recycled several times.