2-Methoxyaniline → HCID 19369783, compound

HRID 1416677Notes

Reaction equation

HRID 1416677 reaction equation
[O:1]=[C:2]1[CH:11]2[CH2:12][CH2:13]O[C:10]2=[C:9]2[C:4]([C:5]([O:15][C:16]([F:19])([F:18])[F:17])=[CH:6][CH:7]=[CH:8]2)=[N:3]1.[CH3:20][O:21][C:22]1[CH:28]=[CH:27][CH:26]=[CH:25][C:23]=1[NH2:24]>C(O)CO.O>[CH3:20][O:21][C:22]1[CH:28]=[CH:27][CH:26]=[CH:25][C:23]=1[N:24]1[C:10]2[C:9]3[CH:8]=[CH:7][CH:6]=[C:5]([O:15][C:16]([F:19])([F:18])[F:17])[C:4]=3[NH:3][C:2](=[O:1])[C:11]=2[CH2:12][CH2:13]1

Participants

5

Reactant 2

HCID 70002-MethoxyanilineHCID 131721283HCID 131721283, compound

Product 1

HCID 19369783HCID 19369783, compoundYield 76%

Reagents, catalysts & solvents 2

HCID 174Ethylene GlycolSolventHCID 962WaterSolvent

Conditions

Temperature
210 °C

Procedure

4-Oxo-6-trifluormethoxy-2,3-dihydrofuro[3,2-c] quinoline (272 mg, 1.0 mmol) was dissolved in 10 ml of ethylene glycol in a pressure tube and 2-methoxyaniline (282 μl, 1.0 mmol) was added under nitrogen. The reaction mixture was heated at 210° C. for 15 hours. The reaction mixture was diluted with 20 ml of salt water and the aqueous layer was extracted with methylene chloride (15 ml×3). After washing with water (15 ml×3), the organic layer was dried by anhydrous magnesium sulfate and filtered, and concentrated under reduced pressure. The residue was purified with ethyl acetate as eluent by silica gel chromatography to obtain 286 mg of desired compound as solid in 76% of yield.

Workup

  1. extractionthe aqueous layer was extracted with methylene chloride (15 ml×3)
  2. washAfter washing with water (15 ml×3)
  3. dry with materialthe organic layer was dried by anhydrous magnesium sulfate
  4. filtrationfiltered
  5. concentrationconcentrated under reduced pressure
  6. customThe residue was purified with ethyl acetate as eluent by silica gel chromatography

Sources & evidence

ORD record
ord-02c08d38e0b54054806510db9e10ceda
Source dataset
uspto-grants-1999_06
Patent number
US05914402

Reaction notes

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