N-bromobutanimide → 1-Bromo-4-hydroxy-8-(4-methoxy-phenoxy)-isoquinoline-3-carboxylic acid methyl ester

HRID 2077158ノート

反応式

HRID 2077158 の反応式
[CH3:1][O:2][C:3]([C:5]1[N:6]=[CH:7][C:8]2[C:13]([C:14]=1[OH:15])=[CH:12][CH:11]=[CH:10][C:9]=2[O:16][C:17]1[CH:22]=[CH:21][C:20]([O:23][CH3:24])=[CH:19][CH:18]=1)=[O:4].[Br:25]N1C(=O)CCC1=O>C(OOC(=O)C1C=CC=CC=1)(=O)C1C=CC=CC=1.C(Cl)(Cl)(Cl)Cl>[CH3:1][O:2][C:3]([C:5]1[N:6]=[C:7]([Br:25])[C:8]2[C:13]([C:14]=1[OH:15])=[CH:12][CH:11]=[CH:10][C:9]=2[O:16][C:17]1[CH:22]=[CH:21][C:20]([O:23][CH3:24])=[CH:19][CH:18]=1)=[O:4]

参加物

5

反応物 2

HCID 67184N-bromobutanimideHCID 671102494-Hydroxy-8-(4-methoxy-phenoxy)-isoquinoline-3-carboxylic acid methyl ester

生成物 1

HCID 866170691-Bromo-4-hydroxy-8-(4-methoxy-phenoxy)-isoquinoline-3-carboxylic acid methyl ester収率 85.2%

試薬・触媒・溶媒 2

HCID 7187Benzoyl Peroxide触媒HCID 5943Carbon Tetrachloride溶媒

実験手順

A mixture of 4-hydroxy-8-(4-methoxy-phenoxy)-isoquinoline-3-carboxylic acid methyl ester (1.17 mmol, 381 mg), N-bromosuccinimide (1.3 mmol, 234 mg), benzoyl peroxide (0.06 mmol, 15 mg), and CCl4 (8 mL) was refluxed with stirring for 2.5 h. After cooling to ambient temperature silica gel was added and the mixture was concentrated in vacuo. The residue was added on top of a chromatography column filled with silica gel. Elution with CH2Cl2 gave the title compound as a tan solid (403 mg); MS-(+)-ion: M+1, 79Br/81Br=404.3 and 406.3.

後処理

  1. temperaturewas refluxed
  2. additionwas added
  3. concentrationthe mixture was concentrated in vacuo
  4. additionThe residue was added on top of a chromatography column
  5. additionfilled with silica gel
  6. washElution with CH2Cl2

出典と根拠

ORDレコード
ord-3bcbad07dc694f3887f101dbd05b27a2
出典データセット
uspto-grants-2011_04
特許番号
US07928120B2

反応ノート

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