N-bromobutanimide → HCID 68428209, compound

HRID 642333Notes

Reaction equation

HRID 642333 reaction equation
[CH2:1]([O:3][C:4]([C:6]1[S:10][C:9]([C:11]2[CH:16]=[CH:15][C:14]([O:17][C:18]3[CH:23]=[CH:22][CH:21]=[CH:20][CH:19]=3)=[CH:13][CH:12]=2)=[N:8][C:7]=1[CH3:24])=[O:5])[CH3:2].[Br:25]N1C(=O)CCC1=O>C(Cl)(Cl)(Cl)Cl.C(OOC(=O)C1C=CC=CC=1)(=O)C1C=CC=CC=1>[CH2:1]([O:3][C:4]([C:6]1[S:10][C:9]([C:11]2[CH:16]=[CH:15][C:14]([O:17][C:18]3[CH:23]=[CH:22][CH:21]=[CH:20][CH:19]=3)=[CH:13][CH:12]=2)=[N:8][C:7]=1[CH2:24][Br:25])=[O:5])[CH3:2]

Participants

5

Reactant 2

HCID 67184N-bromobutanimideHCID 684263914-Methyl-2-(4-phenoxy-phenyl)-thiazole-5-carboxylic acid ethyl ester

Product 1

HCID 68428209HCID 68428209, compoundYield 97.6%

Reagents, catalysts & solvents 2

HCID 7187Benzoyl PeroxideCatalystHCID 5943Carbon TetrachlorideSolvent

Procedure

A mixture of 4-methyl-2-(4-phenoxy-phenyl)-thiazole-5-carboxylic acid ethyl ester (1.40 g, 4.14 mmole), N-bromosuccinimide (760 mg, 4.27 mole) and benzoyl peroxide (50 mg, 0.21 mmole) in carbon tetrachloride (18 ml) was refluxed for 8 h before it was cooled to room temperature and partitioned between dichloromethane and water. The organic layer was washed with saturated aqueous sodium bicarbonate solution, brine, dried over anhydrous sodium sulfate and concentrated in vacuo to give the title compound as a yellow oil (1.69 g). MS: (+) m/z 417.87, 419.87 (M+1, 79Br/81Br).

Workup

  1. temperaturewas refluxed for 8 h before it
  2. custompartitioned between dichloromethane and water
  3. washThe organic layer was washed with saturated aqueous sodium bicarbonate solution, brine
  4. dry with materialdried over anhydrous sodium sulfate
  5. concentrationconcentrated in vacuo

Sources & evidence

ORD record
ord-2a5345111e1a4d478a4e24fdee23da4a
Source dataset
uspto-grants-2010_04
Patent number
US07696223B2

Reaction notes

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