2-[2-(3,3-dimethyl-2,6-dioxocyclohexylidene)hydrazinyl]benzoic acid

2,5,5-trimethylcyclohexane-1,3-dione

2-[bis(methylthio)methylene]-5,5-dimethyl-1,3-cyclohexanedione

methyl 2-hydroxy-4,4-dimethyl-6-oxocyclohex-1-enedithiocarboxylate

3-anilino-5,5-dimethylcyclohex-2-en-1-one