Stereoselective synthesis of trans-α-ketohydrazones from silyl enol ethers mediated by iodobenzene diacetate

Stereoselective synthesis of a variety of trans-α-ketohydrazones from silyl enol ethers in the presence of iodobenzene diacetate [PhI(OAc)2] as oxidant with N-aminophthalimide (PthNH2) as the nitrogen source in CH2Cl2 at room temperature was accomplished in good yields (up to 75%) with exclusive trans-selectivity.