6-(4,4-dimethylcyclohexa-2,5-dien-1-ylidene)-3,3-dimethylcyclohexa-1,4-diene

2,6,6-tribromo-4,4-dimethylcyclohex-2-en-1-one

2,6-dichloro-4,4-dimethylcyclohexa-2,5-dien-1-one

3,3-dimethyl-6-propan-2-ylidenecyclohexa-1,4-diene

二(3,4-二甲苯基)二硫醚