69099-74-7
2,4,4a,5-tetrahydroindeno[1,2-c]pyridazin-3-one
→
~65%
69581-16-4
2,5-dihydroindeno[1,2-c]pyridazin-3-one
114915-75-2
2-(1,3-二氢-1-氧代-2H-茚-2-亚基)乙酸