Water → (RS)-1-[1-(acenaphthen-1-yl)piperidin-4-yl]-1,3-dihydro-3-methyl-2H-benzoimidazole-2-thione

HRID 1675379ノート

反応式

HRID 1675379 の反応式
[CH:1]1([N:13]2[CH2:18][CH2:17][CH:16]([N:19]3[C:23]4[CH:24]=[CH:25][CH:26]=[CH:27][C:22]=4[NH:21][C:20]3=[S:28])[CH2:15][CH2:14]2)[C:11]2=[C:12]3[C:7](=[CH:8][CH:9]=[CH:10]2)[CH:6]=[CH:5][CH:4]=[C:3]3[CH2:2]1.[H-].[Na+].[CH3:31]I.O>CN(C=O)C>[CH:1]1([N:13]2[CH2:18][CH2:17][CH:16]([N:19]3[C:23]4[CH:24]=[CH:25][CH:26]=[CH:27][C:22]=4[N:21]([CH3:31])[C:20]3=[S:28])[CH2:15][CH2:14]2)[C:11]2=[C:12]3[C:7](=[CH:8][CH:9]=[CH:10]2)[CH:6]=[CH:5][CH:4]=[C:3]3[CH2:2]1

参加物

6

反応物 4

HCID 962WaterHCID 6328Methyl iodideHCID 24758Sodium hydrideHCID 23063015(RS)-1-[1-(acenaphthen-1-yl)piperidin-4-yl]-1,3-dihydro-2H-benzoimidazole-2-thione

生成物 1

HCID 23063007(RS)-1-[1-(acenaphthen-1-yl)piperidin-4-yl]-1,3-dihydro-3-methyl-2H-benzoimidazole-2-thione収率 101.1%

試薬・触媒・溶媒 1

HCID 6228Dimethylformamide溶媒

反応条件

温度
50 °C

実験手順

(RS)-1-[1-(Acenaphthen-1-yl)piperidin-4-yl]-1,3-dihydro-2H-benzoimidazole-2-thione (1 g, 2.6 mmol) was dissolved in DMF (15 ml) and sodium hydride (120 mg, 60%) was added. The suspension was stirred at 50° C. for 30 min. After cooling to room temperature, methyl iodide (0.4 g, 2.8 mmol) was added and the mixture was stirred for 1 hr. The reaction mixture was poured into water, and the mixture was extracted with ethyl acetate. The extract was washed with water and saturated aqueous ammonium chloride solution, dried over magnesium sulfate, and concentrated. The obtained residue was purified by silica gel column chromatography (chloroform/methanol) to give the title compound (1.05 g) as pale-yellow crystals.

後処理

  1. temperatureAfter cooling to room temperature
  2. stirringthe mixture was stirred for 1 hr
  3. extractionthe mixture was extracted with ethyl acetate
  4. washThe extract was washed with water and saturated aqueous ammonium chloride solution
  5. dry with materialdried over magnesium sulfate
  6. concentrationconcentrated
  7. customThe obtained residue was purified by silica gel column chromatography (chloroform/methanol)

出典と根拠

ORDレコード
ord-7de387ea2d3241f09d20c361bc87c93b
出典データセット
uspto-grants-2011_08
特許番号
US08003669B2

反応ノート

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