5,5-二甲基-2-环己烯-1-酮

2,3,7,7-tetramethyl-6,8-dihydro-2H-chromen-5-one

2,3-bis(dimethylamino)cycloprop-2-en-1-one

2-[2,3-Bis(dimethylamino)-2-cyclopropen-1-yliden]-5,5-dimethyl-1,3-cyclohexandion

2-[5-[[2,3-Bis(dimethylamino)-2-cyclopropen-1-yliden]amino]-2,4-pentadienyliden]-5,5-dimethyl-1,3-cyclohexandion