N-cyclopropyl-2-fluoro-6-nitroaniline → N1-cyclopropyl-6-fluorobenzene-1,2-diamine
Reaction equation
[CH:1]1([NH:4][C:5]2[C:10]([N+:11]([O-])=O)=[CH:9][CH:8]=[CH:7][C:6]=2[F:14])[CH2:3][CH2:2]1>CO>[CH:1]1([NH:4][C:5]2[C:10]([NH2:11])=[CH:9][CH:8]=[CH:7][C:6]=2[F:14])[CH2:3][CH2:2]1Participants
3
Reactant 1
Product 1
Reagents, catalysts & solvents 1
Procedure
To a solution of N-cyclopropyl-2-fluoro-6-nitroaniline (650 mg, 3.31 mmol) in MeOH (15 mL) palladium 10 wt % on carbon (176 mg, 0.166 mmol) was added under N2. After flushing the flask with N2 for two minutes, the solution was stirred under a H2 balloon. After 6 h, the mixture was filtered through a celite pad rinsed with MeOH, and concentrated under reduced pressure. The residue was purified by column chromatography on a silica gel column using EtOAc:DCM (1:1) as eluent to give N1-cyclopropyl-6-fluorobenzene-1,2-diamine: LC-MS (ESI) m/z 167.1 [M+H]+.
Workup
- customAfter flushing the flask with N2 for two minutes
- filtrationthe mixture was filtered through a celite pad
- washrinsed with MeOH
- concentrationconcentrated under reduced pressure
- customThe residue was purified by column chromatography on a silica gel column
Sources & evidence
- ORD record
- ord-4a91c4fa528e4a9d8aa8d04af50d9e01
- Source dataset
- uspto-grants-2013_11
- Patent number
- US08575183B2
Reaction notes
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