2,5-Dimethoxyaniline → HCID 22132728, compound

HRID 1857272Notes

Reaction equation

HRID 1857272 reaction equation
[CH3:1][O:2][C:3]1[CH:4]=[C:5]2[C:10](=[CH:11][C:12]=1[O:13][CH3:14])[N:9]=[CH:8][CH:7]=[C:6]2[O:15][C:16]1[CH:21]=[CH:20][C:19]([NH2:22])=[CH:18][CH:17]=1.Cl[C:24](Cl)([O:26]C(=O)OC(Cl)(Cl)Cl)Cl.[CH3:35][O:36][C:37]1[CH:43]=[CH:42][C:41]([O:44][CH3:45])=[CH:40][C:38]=1[NH2:39].C(=O)([O-])O.[Na+]>C1(C)C=CC=CC=1.C(N(CC)CC)C>[CH3:35][O:36][C:37]1[CH:43]=[CH:42][C:41]([O:44][CH3:45])=[CH:40][C:38]=1[NH:39][C:24]([NH:22][C:19]1[CH:18]=[CH:17][C:16]([O:15][C:6]2[C:5]3[C:10](=[CH:11][C:12]([O:13][CH3:14])=[C:3]([O:2][CH3:1])[CH:4]=3)[N:9]=[CH:8][CH:7]=2)=[CH:21][CH:20]=1)=[O:26]

Participants

7

Reactant 4

HCID 76132,5-DimethoxyanilineHCID 94429TriphosgeneHCID 516892Sodium BicarbonateHCID 115945434-[(6,7-Dimethoxyquinolin-4-yl)oxy]aniline

Product 1

HCID 22132728HCID 22132728, compoundYield 90.1%

Reagents, catalysts & solvents 2

HCID 1140TolueneSolventHCID 8471TriethylamineSolvent

Procedure

6,7-Dimethoxy-4-(4-aminophenoxy)quinoline (56 mg) was dissolved in toluene (5 ml) with heat, after the addition of triethylamine (1 ml), triphosgene (66 mg) was added, and the admixture was refluxed with heat for 3 minutes. 2,5-Dimethoxyaniline (102 mg) was added to the reaction mixture, and the admixture was refluxed with heat for 10 minutes. After the addition of aqueous sodium hydrogen carbonate, the reaction mixture was extracted 2 times with ethyl acetate, and the organic layer was then washed with brine and dried with anhydrous sodium sulfate. The solvent was removed by reduced-pressure distillation, and the resulting residue was purified by column chromatography on silica gel eluting with chloroform/acetone (10/1) to obtain 81 mg of the title compound (yield: 90%).

Workup

  1. temperaturewith heat
  2. additionwas added
  3. temperaturethe admixture was refluxed
  4. temperaturewith heat for 3 minutes
  5. temperaturethe admixture was refluxed
  6. temperaturewith heat for 10 minutes
  7. extractionthe reaction mixture was extracted 2 times with ethyl acetate
  8. washthe organic layer was then washed with brine
  9. dry with materialdried with anhydrous sodium sulfate
  10. customThe solvent was removed by reduced-pressure distillation
  11. customthe resulting residue was purified by column chromatography on silica gel eluting with chloroform/acetone (10/1)

Sources & evidence

ORD record
ord-deff434a037044f699d275814538fc06
Source dataset
uspto-grants-2000_11
Patent number
US06143764

Reaction notes

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