Highly efficient oxidation of organic halides to aldehydes and ketones with H5IO6 in ionic liquid [C12mim][FeCl4]

A simple, mild, and efficient procedure for the oxidation of organic halides to aldehydes and ketones with H5IO6 in ionic liquid [C12mim][FeCl4] has been developed. The oxidation reactions afford the target products in good to high yields and no overoxidation was observed. The products can be separated by a simple extraction with organic solvent, and the catalytic system can be recycled and reused without loss of catalytic activity.