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Toluene → 1-(2,2-dimethyl-indan-1-yl)-5-trifluoromethyl-1H-imidazole

HRID 2089520
ノート
印刷プレビュー

反応式

HRID 2089520 の反応式
[CH3:1][C:2]1([CH3:12])[CH2:10][C:9]2[C:4](=[CH:5][CH:6]=[CH:7][CH:8]=2)[CH:3]1O.[F:13][C:14]([F:21])([F:20])[C:15]1[NH:19][CH:18]=[N:17][CH:16]=1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.N(C(OC)=O)=NC(OC)=O.C1(C)C=CC=CC=1.C([O-])([O-])=O.[Na+].[Na+]>C1COCC1.C(OCC)C.O>[CH3:1][C:2]1([CH3:12])[CH2:10][C:9]2[C:4](=[CH:5][CH:6]=[CH:7][CH:8]=2)[CH:3]1[N:19]1[C:15]([C:14]([F:21])([F:20])[F:13])=[CH:16][N:17]=[CH:18]1
参加物実験手順後処理出典と根拠反応ノート

参加物

10

反応物 6

HCID 1140TolueneHCID 10340Sodium CarbonateHCID 11776TriphenylphosphineHCID 351621Azodicarboxylic acid dimethyl esterHCID 5858914(5)-(Trifluoromethyl)imidazoleHCID 109427712,3-Dihydro-2,2-dimethyl-1H-inden-1-ol

生成物 1

HCID 59199360
1-(2,2-dimethyl-indan-1-yl)-5-trifluoromethyl-1H-imidazole

試薬・触媒・溶媒 3

HCID 962Water溶媒HCID 3283Diethyl Ether溶媒HCID 8028Tetrahydrofuran溶媒

実験手順

To a solution of 2,2-dimethyl-indan-1-ol, prepared as described in Example 10, (400 mg, 2.47 mmol) in THF (30 mL) at 0° C. is added 5-trifluoromethyl-1H-imidazole (510 mg, 3.75 mmol), triphenylphosphine (982 mg, 3.75 mmol) and a 40 wt % solution of dimethyl azodicarboxylate in toluene (1.4 mL, 3.75 mmol). The reaction is then placed at room temperature and permitted to stir for 1 hour, at which time it is diluted with diethyl ether and water, and is then charged with Na2CO3 (1.9 g, 17.9 mmol). The reaction is permitted to stir for 10 minutes and the layers are separated. The organic layer is washed with brine and the aqueous layers are combined and back-extracted with diethyl ether. The organic layers are combined, dried with MgSO4, filtered, and concentrated. The resulting residue is purified by silica gel flash chromatography (ethyl acetate-hexanes, 15:85 to 1:1) to afford 1-(2,2-dimethyl-indan-1-yl)-5-trifluoromethyl-1H-imidazole; HRMS: (ESI) m/z 281.1266 [(M+H)+; calcd for C15H15F3N3: 281.1276]. The HCl salt of the title compound can be prepared by dissolution in diethyl ether, followed by treatment with an excess of 1N HCl in diethyl ether. The resulting heterogeneous solution is concentrated to furnish the HCl salt of 1-(2,2-dimethyl-indan-1-yl)-5-trifluoromethyl-1H-imidazole; 1H NMR (400 MHz, CD3OD) δ ppm 0.91 (s, 3 H), 1.29 (s, 3 H), 2.83-3.24 (m, 2 H), 5.46 (s, 1 H), 7.25-7.50 (m, 4 H), 8.12 (s, 1 H), 8.18 (s, 1 H).

後処理

  1. customis then placed at room temperature
  2. stirringto stir for 10 minutes
  3. customthe layers are separated
  4. washThe organic layer is washed with brine
  5. extractionback-extracted with diethyl ether
  6. dry with materialdried with MgSO4
  7. filtrationfiltered
  8. concentrationconcentrated
  9. customThe resulting residue is purified by silica gel flash chromatography (ethyl acetate-hexanes, 15:85 to 1:1)

出典と根拠

ORDレコード
ord-93bd008a4233480bbeb46aba5584d7a1
出典データセット
uspto-grants-2013_05
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US08436035B2

反応ノート

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