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Tributylphosphine → 1-(1,2-Dimethyl-1H-benzimidazol-6-yl)-4-((4-(trifluoromethyl)thiophen-2-yl)methoxy)pyridin-2(1H)-one

HRID 2203115
ノート
印刷プレビュー

反応式

HRID 2203115 の反応式
[CH3:1][N:2]1[C:6]2[CH:7]=[C:8]([N:11]3[CH:16]=[CH:15][C:14]([OH:17])=[CH:13][C:12]3=[O:18])[CH:9]=[CH:10][C:5]=2[N:4]=[C:3]1[CH3:19].[F:20][C:21]([F:30])([F:29])[C:22]1[CH:23]=[C:24]([CH2:27]O)[S:25][CH:26]=1.N(C(N1CCCCC1)=O)=NC(N1CCCCC1)=O.C(P(CCCC)CCCC)CCC>C1COCC1>[CH3:1][N:2]1[C:6]2[CH:7]=[C:8]([N:11]3[CH:16]=[CH:15][C:14]([O:17][CH2:27][C:24]4[S:25][CH:26]=[C:22]([C:21]([F:30])([F:29])[F:20])[CH:23]=4)=[CH:13][C:12]3=[O:18])[CH:9]=[CH:10][C:5]=2[N:4]=[C:3]1[CH3:19]
参加物反応条件実験手順後処理出典と根拠反応ノート

参加物

6

反応物 4

HCID 13831TributylphosphineHCID 730421,1'-(Azodicarbonyl)dipiperidineHCID 896902462-Thiophenemethanol, 4-(trifluoromethyl)-HCID 896909671-(1,2-Dimethyl-1H-benzimidazol-6-yl)-4-hydroxypyridin-2(1H)-one

生成物 1

HCID 897026681-(1,2-Dimethyl-1H-benzimidazol-6-yl)-4-((4-(trifluoromethyl)thiophen-2-yl)methoxy)pyridin-2(1H)-one収率 39.3%

試薬・触媒・溶媒

1
HCID 8028Tetrahydrofuran溶媒

反応条件

温度
50 °C

実験手順

To a suspension of 1-(1,2-dimethyl-1H-benzimidazol-6-yl)-4-hydroxypyridin-2(1H)-one (200 mg) in THF (5 ml) were added (4-(trifluoromethyl)thiophen-2-yl)methanol (157 mg), 1,1′-(azodicarbonyl)dipiperidine (257 mg) and tributylphosphine (0.25 ml) at room temperature, and the mixture was stirred at 50° C. overnight. After cooling, the mixture was purified by NH silica gel column chromatography (EtOAc/MeOH), followed by preparative HPLC (C18, mobile phase: H2O/CH3CN (0.1% TFA included)). The desired fraction was neutralized with saturated NaHCO3 solution, and extracted with EtOAc. The organic layer was separated, dried over MgSO4 and concentrated in vacuo to give the title compound (129 mg) as white crystals.

後処理

  1. temperatureAfter cooling
  2. customthe mixture was purified by NH silica gel column chromatography (EtOAc/MeOH)
  3. extractionextracted with EtOAc
  4. customThe organic layer was separated
  5. dry with materialdried over MgSO4
  6. concentrationconcentrated in vacuo

出典と根拠

ORDレコード
ord-11fe7d36c22d4aeca6e6408b17f3a5b6
出典データセット
uspto-grants-2016_06
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US09365540B2

反応ノート

読み込み中…

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