2-Fluoro-4-nitrophenol → 4-(2-Fluoro-4-nitrophenoxy)-5-methylpyrrolo[2,1-f][1,2,4]triazin-6-yl pivalate

HRID 347452

反応式

HRID 347452 の反応式
[C:1]([O:7][C:8]1[C:9]([CH3:18])=[C:10]2[N:15]([CH:16]=1)[N:14]=[CH:13][N:12]=[C:11]2Cl)(=[O:6])[C:2]([CH3:5])([CH3:4])[CH3:3].[F:19][C:20]1[CH:25]=[C:24]([N+:26]([O-:28])=[O:27])[CH:23]=[CH:22][C:21]=1[OH:29].C([O-])([O-])=O.[K+].[K+]>CN(C=O)C>[C:1]([O:7][C:8]1[C:9]([CH3:18])=[C:10]2[N:15]([CH:16]=1)[N:14]=[CH:13][N:12]=[C:11]2[O:29][C:21]1[CH:22]=[CH:23][C:24]([N+:26]([O-:28])=[O:27])=[CH:25][C:20]=1[F:19])(=[O:6])[C:2]([CH3:5])([CH3:4])[CH3:3]

参加物

5

反応物 3

HCID 98252-Fluoro-4-nitrophenolHCID 11430Potassium CarbonateHCID 210816794-Chloro-5-methylpyrrolo[2,1-f][1,2,4]triazin-6-yl 2,2-dimethylpropanoate

生成物 1

HCID 210816484-(2-Fluoro-4-nitrophenoxy)-5-methylpyrrolo[2,1-f][1,2,4]triazin-6-yl pivalate収率 44%

試薬・触媒・溶媒 1

HCID 6228Dimethylformamide溶媒

実験手順

To a mixture 4-chloro-5-methylpyrrolo[2,1-f][1,2,4]triazin-6-yl pivalate (250 mg, 0.94 mmol), 2-fluoro-4-nitrophenol (176 mg, 1.12 mmol, Aldrich) and K2CO3 (154 mg, 1.12 mmol) was added DMF (5 mL). The reaction was stirred at room temperature for 24 h. The reaction was quenched with water (5 mL) and CH2Cl2 (10 mL). The organic layer was separated, dried with sodium sulfate, concentrated in vacuo, and purified by silica gel flash chromatography (eluted with 1–25% EtOAc/CH2Cl2) to give the title compound (160 mg, 44%) as a white solid.

後処理

  1. customThe reaction was quenched with water (5 mL) and CH2Cl2 (10 mL)
  2. customThe organic layer was separated
  3. dry with materialdried with sodium sulfate
  4. concentrationconcentrated in vacuo
  5. custompurified by silica gel flash chromatography (eluted with 1–25% EtOAc/CH2Cl2)

出典と根拠

ORDレコード
ord-c059561856154e4686c9d00d61743a36
出典データセット
uspto-grants-2007_02
特許番号
US07173031B2

関連ノート

読み込み中…