Water → N-(4-Bromophenyl)methanesulfinamide
Reaction equation
[CH3:1][S:2](Cl)=[O:3].[Br:5][C:6]1[CH:12]=[CH:11][C:9]([NH2:10])=[CH:8][CH:7]=1.C(N(CC)C(C)C)(C)C.O>ClCCl>[Br:5][C:6]1[CH:12]=[CH:11][C:9]([NH:10][S:2]([CH3:1])=[O:3])=[CH:8][CH:7]=1Participants
6
Reactant 4
Product 1
Reagents, catalysts & solvents 1
Procedure
A solution of methanesulfinyl chloride (2.06 g) in dichloromethane (20 mL) is added drop wise to an ice-cooled mixture of 4-bromoaniline (3.00 g) and N,N-diisopropylethylamine (10.63 mL) in dichloromethane (20 mL). The reaction mixture is allowed to warm to room temperature and stirred for 5 h. Water is added to the mixture and the organic phase is separated, washed with water, dried over MgSO4, and concentrated in vacuo. The residue is chromatographed on silica gel (cyclohexane/ethyl acetate 50:500:100) to give the title compound. LC (method 1): tR=0.82 min; Mass spectrum (ESI+): m/z=234, 236 [M+H]+.
Workup
- temperaturecooled
- customthe organic phase is separated
- washwashed with water
- dry with materialdried over MgSO4
- concentrationconcentrated in vacuo
- customThe residue is chromatographed on silica gel (cyclohexane/ethyl acetate 50:500:100)
Sources & evidence
- ORD record
- ord-a794706757b84302b794ff1f2eb4f32d
- Source dataset
- uspto-grants-2016_08
- Patent number
- US09422312B2
Reaction notes
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