Triethylamine → 9-Chloro-1-(6-methoxy-4-methylpyridin-3-yl)-1,2,3,4-tetrahydropyrimido[1,2-a]benzimidazole-6-carbaldehyde

HRID 1399086ノート

反応式

HRID 1399086 の反応式
[Cl:1][C:2]1[C:10]2[N:9]=[C:8]3[N:11]([C:15]4[CH:16]=[N:17][C:18]([O:22][CH3:23])=[CH:19][C:20]=4[CH3:21])[CH2:12][CH2:13][CH2:14][N:7]3[C:6]=2[C:5]([CH2:24][OH:25])=[CH:4][CH:3]=1.C(N(CC)CC)C>CS(C)=O.C(=O)([O-])O.[Na+]>[Cl:1][C:2]1[CH:3]=[CH:4][C:5]([CH:24]=[O:25])=[C:6]2[C:10]=1[N:9]=[C:8]1[N:11]([C:15]3[CH:16]=[N:17][C:18]([O:22][CH3:23])=[CH:19][C:20]=3[CH3:21])[CH2:12][CH2:13][CH2:14][N:7]21

参加物

5

反応物 2

HCID 8471TriethylamineHCID 57785829[9-Chloro-1-(6-methoxy-4-methylpyridin-3-yl)-1,2,3,4-tetrahydropyrimido[1,2-a]benzimidazol-6-yl]methanol

生成物 1

HCID 577862229-Chloro-1-(6-methoxy-4-methylpyridin-3-yl)-1,2,3,4-tetrahydropyrimido[1,2-a]benzimidazole-6-carbaldehyde収率 19%

試薬・触媒・溶媒 2

HCID 679Dimethyl Sulfoxide溶媒HCID 516892Sodium Bicarbonate溶媒

実験手順

Sulfur trioxide-pyridine complex (3.42 g, 21.5 mmol) was added to a stirred solution of [9-chloro-1-(6-methoxy-4-methylpyridin-3-yl)-1,2,3,4-tetrahydropyrimido[1,2-a]benzimidazol-6-yl]methanol (1.19 g, 3.31 mmol), triethylamine (3.7 mL) in dimethyl sulfoxide (10 mL) at room temperature, and the mixture was stirred at room temperature for 5 hr. The mixture was diluted with saturated aqueous sodium hydrogen carbonate, and extracted with ethyl acetate. The combined organic layer was washed with brine, dried over anhydrous magnesium sulfate, filtered and concentrated in vacuo to give the title compound as a pale yellow solid (220 mg, 0.617 mmol, 19%).

後処理

  1. extractionextracted with ethyl acetate
  2. washThe combined organic layer was washed with brine
  3. dry with materialdried over anhydrous magnesium sulfate
  4. filtrationfiltered
  5. concentrationconcentrated in vacuo

出典と根拠

ORDレコード
ord-7831664825f14536bd09f6cd61f03212
出典データセット
uspto-grants-2014_12
特許番号
US08901141B2

反応ノート

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