122598-67-8
1-acetylbicyclo[4.2.0]oct-3-ene
→
17428-89-6
(3aR,7aS)-7a-methyl-3,3a,4,7-tetrahydro-2H-inden-1-one
+
85029-31-8
trans-6-methylbicyclo[4.3.0]non-3-en-7-one
1120-73-6
甲基环戊烯醇酮
106-99-0
1,3-丁二烯