Sodium Carbonate → 3-[4-[1-Hydroxyimino-2-(2-fluorophenyl)ethyl]piperidino]methyl-1H-pyrazin-2-one

HRID 914889ノート

反応式

HRID 914889 の反応式
[F:1][C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][C:3]=1[CH2:8][C:9]([CH:11]1[CH2:16][CH2:15][N:14]([CH2:17][C:18]2[C:19](=[O:24])[NH:20][CH:21]=[CH:22][N:23]=2)[CH2:13][CH2:12]1)=O.Cl.[NH2:26][OH:27].C(=O)([O-])[O-].[Na+].[Na+].[Cl-].[NH4+]>C(O)C.ClCCl.O>[OH:27][N:26]=[C:9]([CH:11]1[CH2:16][CH2:15][N:14]([CH2:17][C:18]2[C:19](=[O:24])[NH:20][CH:21]=[CH:22][N:23]=2)[CH2:13][CH2:12]1)[CH2:8][C:3]1[CH:4]=[CH:5][CH:6]=[CH:7][C:2]=1[F:1]

参加物

8

反応物 4

HCID 10340Sodium CarbonateHCID 25517Ammonium ChlorideHCID 443297Hydroxyamine hydrochlorideHCID 101933903-[4-[2-(2-Fluorophenyl)acetyl]piperidino]methyl-1H-pyrazin-2-one

生成物 1

HCID 866013883-[4-[1-Hydroxyimino-2-(2-fluorophenyl)ethyl]piperidino]methyl-1H-pyrazin-2-one収率 70%

試薬・触媒・溶媒 3

HCID 702Ethanol溶媒HCID 962Water溶媒HCID 6344Dichloromethane溶媒

実験手順

After suspending 150 mg of 3-[4-[2-(2-fluorophenyl)acetyl]piperidino]methyl-1H-pyrazin-2-one in 3 ml of ethanol, 47 mg of hydroxylamine hydrochloride and 193 mg of sodium carbonate were added while stirring and the mixture was heated to reflux for 1 hour. Water and saturated aqueous ammonium chloride solution were added to the reaction solution for adjustment to pH 7, and extraction was performed with dichloromethane. The organic layer was washed with brine and dried over anhydrous magnesium sulfate, and then the solvent was distilled off under reduced pressure. Diethyl ether was added and the insoluble portion was filtered out to obtain the title compound (109 mg, 70% yield).

後処理

  1. additionwere added
  2. temperaturethe mixture was heated
  3. temperatureto reflux for 1 hour
  4. washThe organic layer was washed with brine
  5. dry with materialdried over anhydrous magnesium sulfate
  6. distillationthe solvent was distilled off under reduced pressure
  7. additionDiethyl ether was added
  8. filtrationthe insoluble portion was filtered out

出典と根拠

ORDレコード
ord-a833c530fa07482f9e83b5e5c1a6c342
出典データセット
uspto-grants-2007_09
特許番号
US07265108B2

反応ノート

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