2-Hydroxy-2,4-diene derivative > 2-Oxo-3-ene derivative
[H][#8:1][#6:2]1=[#6:3][#6:4]=[#6:5]-,=[*:6]-,=[*:7]-,=[*:8]-1>>[*:8]1=,-[*:7]=,-[*:6]=,-[#6:5][#6:4]=[#6:3][#6:2]-1=[O:1]
[H][#8:1][#6:2]1=[#6:3][#6:4]=[#6:5]-,=[*:6]-,=[*:7]-,=[*:8]-1
None
[*:8]1=,-[*:7]=,-[*:6]=,-[#6:5][#6:4]=[#6:3][#6:2]-1=[O:1]
None
