2,4,6-tritert-butyl-4-ethoxycyclohexa-2,5-dien-1-one

2,4,6-tri-tert-butyl-4,5-epoxy-6-hydroxy-cyclohex-2-enone

2,4,6-tri-tert-butyl-4-tert-butoxy-2,5-cyclohexadienone

succinic acid bis-(1,3,5-tri-tert-butyl-4-oxo-cyclohexa-2,5-dienyl ester)

bis(2,4,6-tritert-butylphenyl) oxalate