3-(2,2-dimethylhydrazino)cyclohex-2-en-1-one

2-methyl-1,3-cyclohexanedione-dimethylhydrazone

3-hydroxy-2,2-dimethylcyclohexan-1-one

2,2-dimethyl-1-oxaspiro[2.4]heptan-4-one

环辛烷-1,2-二酮