Chloroacetyl chloride → 1-(Chloroacetyl)-4-(4-fluorophenyl)piperazine
Reaction equation
[F:1][C:2]1[CH:7]=[CH:6][C:5]([N:8]2[CH2:13][CH2:12][NH:11][CH2:10][CH2:9]2)=[CH:4][CH:3]=1.C(N(CC)CC)C.[Cl:21][CH2:22][C:23](Cl)=[O:24]>C(Cl)Cl>[Cl:21][CH2:22][C:23]([N:11]1[CH2:12][CH2:13][N:8]([C:5]2[CH:4]=[CH:3][C:2]([F:1])=[CH:7][CH:6]=2)[CH2:9][CH2:10]1)=[O:24]Participants
Reactant 3
Product 1
Reagents, catalysts & solvents 1
Conditions
- Temperature
- 0 °C
Procedure
1-(4-Fluorophenyl) piperazine (2.8 mmol) was dissolved in 10 mL of CH2Cl2. Triethylamine (5.5 mmol) was added to it and the reaction was cooled to 0° C. Chloroacetylchloride (4.2 mmol) was added to it slowly, and the reaction was warmed to room temperature overnight. After completion, the reaction was quenched with brine solution and reaction mixture was extracted with methylene chloride. The combined organic phases were washed with brine and water and dried over magnesium sulfate. The solvent was evaporated and the compound purified by column-chromatography (hexane/ethyl acetate=1.5/1) to afford the title compound as a white solid. 1H NMR (400 MHz, CDCl3): δ 8 6.9-7.2 (m, 2H), 6.82-6.92 (m, 2H), 4.1 (s, 2H), 6.62-3.8 (m, 4H), 3.46-3.6 (m, 4H). 13C NMR (400 MHz, CDCl3): 164, 158, 156.2, 148.5, 118.2, 116.8, 52.6, 52.2, 48, 46, 42.1, 40.6.
Workup
- temperaturethe reaction was warmed to room temperature overnight
- customAfter completion, the reaction was quenched with brine solution and reaction mixture
- extractionwas extracted with methylene chloride
- washThe combined organic phases were washed with brine and water
- dry with materialdried over magnesium sulfate
- customThe solvent was evaporated
- customthe compound purified by column-chromatography (hexane/ethyl acetate=1.5/1)
Sources & evidence
- ORD record
- ord-6edb3b6d470c4a7a80c9ec2afdfe6727
- Source dataset
- uspto-grants-2008_11
- Patent number
- US07449576B1
Reaction notes
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