Dimethylformamide → HCID 86753760, compound
Reaction equation
[H-].[Na+].CN(C)C=O.[CH3:8][O:9][C:10]1[CH:11]=[C:12]2[C:16](=[CH:17][CH:18]=1)[NH:15][C:14]([CH3:19])=[C:13]2[CH2:20][C:21]([O:23][C:24]([CH3:27])([CH3:26])[CH3:25])=[O:22].[CH3:28][O:29][C:30]1[CH:38]=[CH:37][C:33]([C:34](Cl)=[O:35])=[CH:32][CH:31]=1>CCCCCC.C(OCC)(=O)C.O>[CH3:8][O:9][C:10]1[CH:11]=[C:12]2[C:16](=[CH:17][CH:18]=1)[N:15]([C:34](=[O:35])[C:33]1[CH:37]=[CH:38][C:30]([O:29][CH3:28])=[CH:31][CH:32]=1)[C:14]([CH3:19])=[C:13]2[CH2:20][C:21]([O:23][C:24]([CH3:27])([CH3:26])[CH3:25])=[O:22]Participants
7
Conditions
- Temperature
- 0 °C
Procedure
Combine sodium hydride (0.66 g, 60% in oil, 13.1 mmol) and dimethylformamide [50 mL). Cool to 0° C. using an ice-bath. Add t-butyl (5-methoxy-2-methyl-indol-3-yl]-acetate (3 g, 10.9 mmol). Stir until gas evolution ceases. Add 4-methoxybenzoyl chloride (2.23 g, 13 mmol). Warm to ambient temperature. After 18 hours, add water. Partition the reaction mixture between ethyl acetate and water. Separate the organic layer and extract with a saturated sodium chloride solution. Dry the organic layer over MgSO4, filter, and evaporate in vacuo to give a residue. Chromatograph the residue on silica gel eluting with 1/4 ethyl acetate hexane to give the title compound.
Workup
- temperatureWarm to ambient temperature
- customPartition the reaction mixture between ethyl acetate and water
- customSeparate the organic layer
- extractionextract with a saturated sodium chloride solution
- dry with materialDry the organic layer over MgSO4
- filtrationfilter
- customevaporate in vacuo
- customto give a residue
Sources & evidence
- ORD record
- ord-0919d2c3cb2f4e9ab1641963e07abae9
- Source dataset
- uspto-grants-1999_03
- Patent number
- US05877202
Reaction notes
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