Hydrazine hydrate (1:1) → HCID 136049261, compound
Reaction equation
[Cl:1][C:2]1[CH:3]=[C:4]2[C:9](=[CH:10][C:11]=1[OH:12])[O:8][C:7]([CH3:13])=[C:6]([C:14]1[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=1)[C:5]2=O.O.[NH2:22][NH2:23]>>[Cl:1][C:2]1[CH:3]=[C:4]([C:5]2[C:6]([C:14]3[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=3)=[C:7]([CH3:13])[NH:23][N:22]=2)[C:9]([OH:8])=[CH:10][C:11]=1[OH:12]Participants
3
Procedure
This compounds was synthesised in the same manner as described above. 6-Chloro-7-hydroxy-2-methyl-3-phenyl-chromen-4-one (0.5 g, 1.75 mmol), Hydrazine hydrate (5 ml). The quenched reaction was extracted into ethyl acetate, washed (water), dried (MgSO4), and the solvent removed under vacuum to give 4-Chloro-6-(5-methyl-4-phenyl-1H-pyrazol-3-yl)-benzene-1,3-diol as a white solid (0.27 g, 51.4%); Rf 0.55 ethyl acetate/hexane (80/20)].
Workup
- customThis compounds was synthesised in the same manner
- customThe quenched reaction
- extractionwas extracted into ethyl acetate
- washwashed (water)
- dry with materialdried (MgSO4)
- customthe solvent removed under vacuum
Sources & evidence
- ORD record
- ord-b1993813b5fe4e059bbb51f4f31074d0
- Source dataset
- uspto-grants-2007_07
- Patent number
- US07247734B2
Reaction notes
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