Acetic Acid → HCID 20351305, compound
Reaction equation
Cl[C:2]1[N:3]=[N:4][C:5]([O:8][C:9]2[CH:14]=[CH:13][C:12]([Cl:15])=[CH:11][CH:10]=2)=[CH:6][CH:7]=1.C(O)(=[O:18])C>>[Cl:15][C:12]1[CH:13]=[CH:14][C:9]([O:8][C:5]2[CH:6]=[CH:7][C:2](=[O:18])[NH:3][N:4]=2)=[CH:10][CH:11]=1Participants
3
Procedure
A solution of 10 g 3-chloro-6-(4-chlorophenoxy)-pyridazine in 100 ml acetic acid is maintained at reflux temperature for a few hours. The precipitate which appears on cooling is isolated and then recrystallised from butanol. There is thus obtained, at 80% yield, 6-(4-chlorophenoxy)-3-pyridazinone which melts at 202° C.
Workup
- temperatureat reflux temperature for a few hours
- temperatureon cooling
- customis isolated
- customrecrystallised from butanol
Sources & evidence
- ORD record
- ord-1e51472dd56c42e1bc87c3a7fbac3136
- Source dataset
- uspto-grants-1980_02
- Patent number
- US04188388
Reaction notes
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