2,6,6-Trimethylcyclohepta-2,4-dienone
4-Methyl-4-(trichloromethyl)cyclohexa-2,5-dienone
4,4-Dibromo-2,6-di-tert-butylcyclohexa-2,5-dienone
4-Benzylidene-2,6-di-tert-butylcyclohexa-2,5-dienone
