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

HRID 2089520
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HRID 2089520 반응식
[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
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참가 물질

10

반응물 6

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

생성물 1

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

시약·촉매·용매 3

HCID 962Water용매HCID 3283Diethyl Ether용매HCID 8028Tetrahydrofuran용매

실험 절차

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).

후처리

  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)

출처 및 근거

ORD 기록
ord-93bd008a4233480bbeb46aba5584d7a1
출처 데이터셋
uspto-grants-2013_05
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08436035B2

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