Water → HCID 86610528, compound

HRID 495200Notes

Reaction equation

HRID 495200 reaction equation
[CH3:1][O:2][CH2:3][O:4][C:5]1[C:6]([C:20](=[O:29])[C:21]2[CH:26]=[CH:25][C:24]([O:27][CH3:28])=[CH:23][CH:22]=2)=[C:7]([CH2:15][C:16]([O:18][CH3:19])=[O:17])[CH:8]=[C:9]([O:11][CH2:12][O:13][CH3:14])[CH:10]=1.[Br:30]N1C(=O)CCC1=O.O>CN(C)C=O>[CH3:14][O:13][CH2:12][O:11][C:9]1[C:8]([Br:30])=[C:7]([CH2:15][C:16]([O:18][CH3:19])=[O:17])[C:6]([C:20](=[O:29])[C:21]2[CH:22]=[CH:23][C:24]([O:27][CH3:28])=[CH:25][CH:26]=2)=[C:5]([O:4][CH2:3][O:2][CH3:1])[CH:10]=1

Participants

5

Reactant 3

HCID 962WaterHCID 67184N-bromobutanimideHCID 68419954HCID 68419954, compound

Product 1

HCID 86610528HCID 86610528, compoundYield 89.7%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

Methyl 3,5-bis(methoxymethoxy)-2-(4-methoxybenzoyl)phenylacetate (490 mg, 1.2 mmol) obtained in Example 134, Step 2 was dissolved in N,N-dimethylformamide (10 mL), and N-bromosuccinimide (220 mg, 1.2 mmol) was added thereto, followed by stirring at room temperature for 3 hours. To the reaction mixture was added water for liquid separation, and the aqueous layer was extracted with ethyl acetate. The organic layers were combined, dried over anhydrous sodium sulfate, and then concentrated under reduced pressure. The resulting residue was purified by silica gel column chromatography (ethyl acetate/hexane=1/4-1/1) to obtain methyl 3,5-bis(methoxymethoxy)-2-bromo-6-(4-methoxybenzoyl)phenylacetate (520 mg, 89%).

Workup

  1. customfor liquid separation
  2. extractionthe aqueous layer was extracted with ethyl acetate
  3. dry with materialdried over anhydrous sodium sulfate
  4. concentrationconcentrated under reduced pressure
  5. customThe resulting residue was purified by silica gel column chromatography (ethyl acetate/hexane=1/4-1/1)

Sources & evidence

ORD record
ord-0614d7bb0d9f4d50ba6840953ca25d86
Source dataset
uspto-grants-2009_05
Patent number
US07538224B2

Reaction notes

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