Patent ID: 8513467

Claim:
A method of making 2,4-diones, the method comprising reacting a 4-hydroxy-6-substituted-2-pyrone to yield a corresponding 2,4-dione: wherein “R” is selected from the group consisting of hydrogen; halo; hydroxyl; unsubstituted or halo-substituted, linear, branched, or cyclic alkyl, alkenyl, alkynyl, or alkoxy; unsubstituted or substituted aryl, aryl-C 1 -C 6 -alkyl, aryl-C 1 -C 6 -alkenyl, or aryl-C 1 -C 6 -alkynyl, wherein, if substituted, substituents are selected from the group consisting of halo, hydroxyl, acyl, acyloxy, and linear, branched, or cyclic alkyl, alkenyl, or alkynyl, under conditions and for a time such that the corresponding 2,4-dione is formed.