2-(Trifluoromethyl)aniline → HCID 178468313, compound
Reaction equation
[F:1][C:2]([F:11])([F:10])[C:3]1[CH:9]=[CH:8][CH:7]=[CH:6][C:4]=1[NH2:5].[N:12]([O-])=O.[Na+].C([O-])(=O)C.[Na+].[C:21]([CH2:24][C:25](=[O:27])[CH3:26])(=[O:23])[CH3:22]>O.Cl.C(O)C>[F:1][C:2]([F:10])([F:11])[C:3]1[CH:9]=[CH:8][CH:7]=[CH:6][C:4]=1[NH:5][N:12]=[C:24]([C:25](=[O:27])[CH3:26])[C:21](=[O:23])[CH3:22]Participants
8
Conditions
- Temperature
- 0 °C
Procedure
To a solution of 2-(trifluoromethyl)aniline (1.09 g, 6.80 mmol) in 5 mL of water and 5 mL of concentrated hydrochloride solution, sodium nitrite (563 mg, 8.16 mmol) in 4 mL of water was added dropwise at 0° C., and the mixture was stirred at 0° C. for 1 h. Then to the reaction mixture was added dropwise a solution of sodium acetate (1.67 g, 20.40 mmol) and acetylacetone (748 mg, 7.48 mmol) in 10 mL of ethanol and 6 mL of water. The mixture was stirred at room temperature overnight, filtered, washed with water, EtOH/H2O (1:1) and hexane, and dried to give 3-{[2-(trifluoromethyl)phenyl]hydrazono}pentane-2,4-dione (634 mg, 33%).
Workup
- stirringThe mixture was stirred at room temperature overnight
- filtrationfiltered
- washwashed with water, EtOH/H2O (1:1) and hexane
- customdried
Sources & evidence
- ORD record
- ord-1f4b5f5db1024cf0a81cf15a8cf879c1
- Source dataset
- uspto-grants-2014_07
- Patent number
- US08778944B2
Reaction notes
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