Water → HCID 66697318, compound
Reaction equation
[H-].[Na+].[Cl:3][C:4]1[CH:9]=[C:8]([O:10][CH3:11])[CH:7]=[CH:6][C:5]=1[CH2:12][C:13]([C:15]1[CH:26]=[CH:25][C:18]2[N:19]([CH3:24])[C:20](=[O:23])[N:21]([CH3:22])[C:17]=2[CH:16]=1)=[O:14].[CH3:27]I.O>CN(C=O)C>[Cl:3][C:4]1[CH:9]=[C:8]([O:10][CH3:11])[CH:7]=[CH:6][C:5]=1[CH:12]([CH3:27])[C:13]([C:15]1[CH:26]=[CH:25][C:18]2[N:19]([CH3:24])[C:20](=[O:23])[N:21]([CH3:22])[C:17]=2[CH:16]=1)=[O:14]Participants
6
Reactant 4
Product 1
Reagents, catalysts & solvents 1
Procedure
Sodium hydride (55% in mineral oil, 139 mg) was added to a solution of 5-[2-(2-chloro-4-methoxy-phenyl)-acetyl]-1,3-dimethyl-1,3-dihydro-benzoimidazol-2-one (1 g) in DMF (16 ml) at 0° C. The mixture was stirred for 30 min, then methyl iodide (0.2 ml) was added at 0° C. Water was added to the mixture and extracted with DCM. The combined organic layers were dried over Na2SO4 and concentrated to an oil. The residue was purified by flash chromatography (SiO2, 0 to 60% EtOAc/DCM) to give the title compound (830 mg) as light yellow oil. MS (m/e)=359.0 [M+H+].
Workup
- extractionextracted with DCM
- dry with materialThe combined organic layers were dried over Na2SO4
- concentrationconcentrated to an oil
- customThe residue was purified by flash chromatography (SiO2, 0 to 60% EtOAc/DCM)
Sources & evidence
- ORD record
- ord-f8c52940d6f242b49774f648910fc1de
- Source dataset
- uspto-grants-2013_05
- Patent number
- US08450313B2
Reaction notes
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