N-Iodosuccinimide → HCID 57481199, compound
Reaction equation
[Br:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2[N:9]=[CH:10][N:11]([CH3:13])[CH:12]=2)=[CH:4][CH:3]=1.[I:14]N1C(=O)CCC1=O.C(=O)(O)[O-].[Na+]>ClCCl.FC(F)(F)C(O)=O>[Br:1][C:2]1[CH:3]=[CH:4][C:5]([C:8]2[N:9]=[CH:10][N:11]([CH3:13])[C:12]=2[I:14])=[CH:6][CH:7]=1Participants
6
Procedure
To a solution of 4-(4-bromophenyl)-1-methyl-1H-imidazole (Step 2 product, 2.8 g, 9.45 mmol) in dichloromethane (30 mL) was added N-iodosuccinimide (1.913 g, 8.50 mmol) and six drops of trifluoroacetic acid. The reaction mixture was stirred at rt for 16 h. The mixture was neutralized with aqueous sodium bicarbonate and the organics were extracted with dichloromethane. The organics were then washed with aqueous sodium thiosulfate, followed by three washes with water then dried (MgSO4). The solvent was concentrated to afford 4-(4-bromophenyl)-5-iodo-1-methyl-1H-imidazole, which was used with out further purification. LCMS: [M+1]+=363.
Workup
- extractionthe organics were extracted with dichloromethane
- washThe organics were then washed with aqueous sodium thiosulfate
- dry with materialthen dried (MgSO4)
- concentrationThe solvent was concentrated
Sources & evidence
- ORD record
- ord-20a6eb2f96674e79a856d8ffd33cd766
- Source dataset
- uspto-grants-2014_03
- Patent number
- US08664253B2
Reaction notes
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