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Ammonium Chloride → Tert-butyl 3-[1-(3,5-difluorophenyl)-1-hydroxy-2,2-dimethylpropyl]azetidine-1-carboxylate

HRID 602702
ノート
印刷プレビュー

反応式

HRID 602702 の反応式
[F:1][C:2]1[CH:3]=[C:4]([CH:18]=[C:19]([F:21])[CH:20]=1)[C:5]([CH:7]1[CH2:10][N:9]([C:11]([O:13][C:14]([CH3:17])([CH3:16])[CH3:15])=[O:12])[CH2:8]1)=[O:6].[C:22]([Mg]Cl)([CH3:25])([CH3:24])[CH3:23].[NH4+].[Cl-]>C1COCC1>[F:1][C:2]1[CH:3]=[C:4]([C:5]([CH:7]2[CH2:10][N:9]([C:11]([O:13][C:14]([CH3:15])([CH3:16])[CH3:17])=[O:12])[CH2:8]2)([OH:6])[C:22]([CH3:25])([CH3:24])[CH3:23])[CH:18]=[C:19]([F:21])[CH:20]=1
参加物反応条件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 25517Ammonium ChlorideHCID 670659051,1-Dimethylethyl 3-(3,5-difluorobenzoyl)-1-azetidinecarboxylateHCID 178418310HCID 178418310、化合物

生成物 1

HCID 67065877Tert-butyl 3-[1-(3,5-difluorophenyl)-1-hydroxy-2,2-dimethylpropyl]azetidine-1-carboxylate

試薬・触媒・溶媒 1

HCID 8028Tetrahydrofuran溶媒

反応条件

温度
-78 °C

実験手順

To a solution of 3.07 g (10.34 mmol) of tert-butyl 3-(3,5-difluorobenzoyl)azetidine-1-carboxylate in 20 mL of THF, 36.19 mL (36.19 mmol) of tert-butyl magnesium chloride was added and stirred for 3.5 h at −78° C. To the solution was added 8 mL of aq. NH4Cl and the solution was filtered to remove the solid. The filtrate was washed with ether. The combined organic layer was concentrated to remove solvents and residue was purified by silica gel chromatography with hexanes/ethyl acetate to afford the title compound; 1H-NMR (CDCl3) δ 0.897 (s, 9H), 1.425 (s, 9H), 2.234 (br, 1H), 3.25 (m, 1H), 3.55 (m, 1H), 3.71 (t, J=8.9 Hz, 1H), 3.97 (t, J=8.4 Hz, 1H), 4.17 (m, 1H), 6.53-6.74 (m, 3H).

後処理

  1. filtrationthe solution was filtered
  2. customto remove the solid
  3. washThe filtrate was washed with ether
  4. concentrationThe combined organic layer was concentrated
  5. customto remove solvents and residue
  6. customwas purified by silica gel chromatography with hexanes/ethyl acetate

出典と根拠

ORDレコード
ord-06e5cc734c194ddf838c98867f1648cd
出典データセット
uspto-grants-2011_03
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US07906503B2

反応ノート

読み込み中…

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