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Methyl iodide → 1-(4-Benzyl-7,7-dimethyl-5-phenyl-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidin-3-yl)-2-(4-methylphenyl)-1-propanone

HRID 63763
ノート
印刷プレビュー

反応式

HRID 63763 の反応式
[CH2:1]([N:8]1[CH:13]([C:14]2[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=2)[CH2:12][C:11]([CH3:21])([CH3:20])[N:10]2[N:22]=[CH:23][C:24]([C:25](=[O:34])[CH2:26][C:27]3[CH:32]=[CH:31][C:30]([CH3:33])=[CH:29][CH:28]=3)=[C:9]12)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.I[CH3:36].[H-].[Na+]>C1COCC1>[CH2:1]([N:8]1[CH:13]([C:14]2[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=2)[CH2:12][C:11]([CH3:21])([CH3:20])[N:10]2[N:22]=[CH:23][C:24]([C:25](=[O:34])[CH:26]([C:27]3[CH:32]=[CH:31][C:30]([CH3:33])=[CH:29][CH:28]=3)[CH3:36])=[C:9]12)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1
参加物実験手順後処理出典と根拠反応ノート

参加物

5

反応物 3

HCID 6328Methyl iodideHCID 24758Sodium hydrideHCID 576320601-(4-Benzyl-7,7-dimethyl-5-phenyl-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidin-3-yl)-2-(4-methylphenyl)ethanone

生成物 1

HCID 576314041-(4-Benzyl-7,7-dimethyl-5-phenyl-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidin-3-yl)-2-(4-methylphenyl)-1-propanone収率 64%

試薬・触媒・溶媒 1

HCID 8028
Tetrahydrofuran
溶媒

実験手順

To 0.64 g (1.42 mmol) of 4 dissolved in 10 mL of THF was added 0.177 mL (2.85 mmol) of iodomethane followed by 0.11 g (2.8 mmol) of sodium hydride (60% dispersion in mineral oil). After stirring at room temperature for 2 h, the reaction was quenched by addition of approximately 2 mL of saturated aqueous ammonium chloride. The reaction was then diluted with AcOEt and dried over sodium sulfate. Filtering the solution through a short plug of silica gel and concentrating in vacuo provided the crude product. Purification by flash chromatography eluting with 90% hexanes/ethyl acetate gave 0.42 g (64%) of the title compound as a cream colored powder. MS Calcd.: 463. Found: 464 (M+H).

後処理

  1. customthe reaction was quenched by addition of approximately 2 mL of saturated aqueous ammonium chloride
  2. additionThe reaction was then diluted with AcOEt
  3. dry with materialdried over sodium sulfate
  4. filtrationFiltering the solution through a short plug of silica gel
  5. concentrationconcentrating in vacuo
  6. customprovided the crude product
  7. customPurification by flash chromatography
  8. washeluting with 90% hexanes/ethyl acetate

出典と根拠

ORDレコード
ord-48c53eaa8e0b4eb2bda0d70be92bc777
出典データセット
uspto-grants-2016_09
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US09447100B2

反応ノート

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