N-bromobutanimide → 4-Bromomethyl-2-(4-methoxy-phenyl)-thiazole-5-carboxylic acid ethyl ester

HRID 642294

반응식

HRID 642294 반응식
[CH2:1]([O:3][C:4]([C:6]1[S:10][C:9]([C:11]2[CH:16]=[CH:15][C:14]([O:17][CH3:18])=[CH:13][CH:12]=2)=[N:8][C:7]=1[CH3:19])=[O:5])[CH3:2].[Br:20]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:12]=[CH:13][C:14]([O:17][CH3:18])=[CH:15][CH:16]=2)=[N:8][C:7]=1[CH2:19][Br:20])=[O:5])[CH3:2]

참가 물질

5

반응물 2

HCID 67184N-bromobutanimideHCID 7540952Ethyl 2-(4-methoxyphenyl)-4-methyl-1,3-thiazole-5-carboxylate

생성물 1

HCID 684274184-Bromomethyl-2-(4-methoxy-phenyl)-thiazole-5-carboxylic acid ethyl ester수율 94.3%

시약·촉매·용매 2

HCID 7187Benzoyl Peroxide촉매HCID 5943Carbon Tetrachloride용매

실험 절차

A mixture of 2-(4-Methoxy-phenyl)-4-methyl-thiazole-5-carboxylic acid ethyl ester (1.41 g, 5.09 mmol), N-bromosuccinimide (951 mg, 5.34 mmol) and benzoyl peroxide (62 mg, 0.25 mmol) in carbon tetrachloride (20 mL) was refluxed for 15 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 solid (1.71 g): MS: (+) m/z 355.96, 357.96 (M+1, 79Br/81Br).

후처리

  1. temperaturewas refluxed for 15 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

출처 및 근거

ORD 기록
ord-084115644596457d9a8a75ade597e29d
출처 데이터셋
uspto-grants-2010_04
특허 번호
US07696223B2

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