114920-68-2
2-(γ,γ-bis-N,N-dimethylaminopropylidene)cyclohexane-1,3-dione
→
~74%
127040-30-6
5-oxo-5,6,7,8-tetrahydrocoumarin
127040-35-1
6,11-dihydro-5H-pyrano[3,2-a]carbazol-3-one
15450-69-8
7,8-二氢-1H,6H-喹啉-2,5-二酮