Benzoyl chloride → 5-[3-(Benzoyloxy)propylthio]imidazo[1,2-a]pyridine

HRID 1608617ノート

反応式

HRID 1608617 の反応式
[OH:1][CH2:2][CH2:3][CH2:4][S:5][C:6]1[N:11]2[CH:12]=[CH:13][N:14]=[C:10]2[CH:9]=[CH:8][CH:7]=1.C(N(CC)CC)C.[C:22](Cl)(=[O:29])[C:23]1[CH:28]=[CH:27][CH:26]=[CH:25][CH:24]=1>C(Cl)Cl>[C:22]([O:1][CH2:2][CH2:3][CH2:4][S:5][C:6]1[N:11]2[CH:12]=[CH:13][N:14]=[C:10]2[CH:9]=[CH:8][CH:7]=1)(=[O:29])[C:23]1[CH:28]=[CH:27][CH:26]=[CH:25][CH:24]=1

参加物

5

反応物 3

HCID 7412Benzoyl chlorideHCID 8471TriethylamineHCID 233628905-[3-(Hydroxy)propylthio]imidazo[1,2-a]pyridine

生成物 1

HCID 233629675-[3-(Benzoyloxy)propylthio]imidazo[1,2-a]pyridine収率 88.1%

試薬・触媒・溶媒 1

HCID 6344Dichloromethane溶媒

実験手順

To a solution of 5-[3-(hydroxy)propylthio]imidazo[1,2-a]pyridine (1.00 g, 4.80 moles) and triethylamine (0.80 ml, 5.74 moles) in methylene chloride (25 ml) was added benzoyl chloride (1.10 ml, 11.6 moles) with stirring at room temperature and the mixture was further stirred at room temperature for 30 minutes. The reaction mixture was washed with an aqueous 1N sodium hydroxide solution and dried. After the solvent was distilled off, the residue was purified by column chromatography [eluent: hexane/acetone (1:1)] to obtain 1.32 g of the desired product (88.1%, white solid).

後処理

  1. stirringthe mixture was further stirred at room temperature for 30 minutes
  2. washThe reaction mixture was washed with an aqueous 1N sodium hydroxide solution
  3. customdried
  4. distillationAfter the solvent was distilled off
  5. customthe residue was purified by column chromatography [eluent: hexane/acetone (1:1)]

出典と根拠

ORDレコード
ord-0554ed3755dd4225ad4415933e430f29
出典データセット
uspto-grants-1995_03
特許番号
US05395839

反応ノート

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