Pyridiniumtribromide → 2-Bromo-1-(2,4-difluorophenyl)-2-(3-isopropyl-[1,2,4]triazolo[4,3-b]pyridazin-6-yl)ethanone

HRID 1929970ノート

反応式

HRID 1929970 の反応式
[Br-:1].[Br-].[Br-].[NH+]1C=CC=CC=1.[NH+]1C=CC=CC=1.[NH+]1C=CC=CC=1.[F:22][C:23]1[CH:28]=[C:27]([F:29])[CH:26]=[CH:25][C:24]=1[C:30](=[O:44])[CH2:31][C:32]1[CH:33]=[CH:34][C:35]2[N:36]([C:38]([CH:41]([CH3:43])[CH3:42])=[N:39][N:40]=2)[N:37]=1>C1COCC1.C(Cl)Cl>[Br:1][CH:31]([C:32]1[CH:33]=[CH:34][C:35]2[N:36]([C:38]([CH:41]([CH3:42])[CH3:43])=[N:39][N:40]=2)[N:37]=1)[C:30]([C:24]1[CH:25]=[CH:26][C:27]([F:29])=[CH:28][C:23]=1[F:22])=[O:44]

参加物

5

反応物 2

HCID 21124087PyridiniumtribromideHCID 579298581-(2,4-Difluorophenyl)-2-(3-isopropyl-[1,2,4]triazolo[4,3-b]pyridazin-6-yl)ethanone

生成物 1

HCID 579298612-Bromo-1-(2,4-difluorophenyl)-2-(3-isopropyl-[1,2,4]triazolo[4,3-b]pyridazin-6-yl)ethanone収率 100.2%

試薬・触媒・溶媒 2

HCID 6344Dichloromethane溶媒HCID 8028Tetrahydrofuran溶媒

実験手順

Pyridinium tribromide (0.567 g, 1.77 mmol) was added to a solution of 1-(2,4-difluorophenyl)-2-(3-isopropyl-[1,2,4]triazolo[4,3-b]pyridazin-6-yl)ethanone (0.488 g, 1.54 mmol; Preparation #K.1) in THF (6 mL) and the resulting reaction mixture was stirred at ambient temperature for about 4 h. The crude mixture was diluted with DCM (20 mL) and washed with water. The organic layer was dried over MgSO4, filtered, and concentrated under reduced pressure to give the crude title compound (0.61 g, 100%): LC/MS (Table 1, Method a) Rt=3.28 min; MS m/z: 396.9 (M+H)+.

後処理

  1. customthe resulting reaction mixture
  2. washwashed with water
  3. dry with materialThe organic layer was dried over MgSO4
  4. filtrationfiltered
  5. concentrationconcentrated under reduced pressure

出典と根拠

ORDレコード
ord-058d16031a0a413faf454bac0c29f167
出典データセット
uspto-grants-2012_05
特許番号
US08188083B2

反応ノート

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