Development and application of multi-functional hybrid-type organocatalysts based on hypervalent iodine oxidation

A novel hybrid-type organocatalyst having two deferent catalytic sites, 2, 2, 6, 6-tetramethyl-1-piperidinyloxyl(TEMPO) and iodobenzene sites, was developed and applied the oxidation of alcohols. The two catalytic sites were connected by ester bonds with phthalic acid as a linker. The reaction of primary alcohols with the catalyst in the presence of peracetic acid as a co-oxidant was smoothly proceeded to give the corresponding carboxylic acid in excellent yield.