3-Methoxyaniline → HCID 67019550, compound

HRID 226132Notes

Reaction equation

HRID 226132 reaction equation
[CH3:1][O:2][C:3](=[O:16])[CH:4]=[CH:5][C:6]1[CH:11]=[CH:10][CH:9]=[C:8]([S:12](Cl)(=[O:14])=[O:13])[CH:7]=1.[CH3:17][O:18][C:19]1[CH:20]=[C:21]([NH2:25])[CH:22]=[CH:23][CH:24]=1.C([O-])(O)=O.[Na+]>O1CCOCC1.O>[CH3:1][O:2][C:3](=[O:16])[CH:4]=[CH:5][C:6]1[CH:11]=[CH:10][CH:9]=[C:8]([S:12](=[O:14])(=[O:13])[NH:25][C:21]2[CH:22]=[CH:23][CH:24]=[C:19]([O:18][CH3:17])[CH:20]=2)[CH:7]=1

Participants

6

Reactant 3

HCID 108243-MethoxyanilineHCID 516892Sodium BicarbonateHCID 737087423-(3-Chlorosulfonylphenyl)acrylic acid methyl ester

Product 1

HCID 67019550HCID 67019550, compoundYield 82.8%

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 312751,4-DioxaneSolvent2×

Procedure

A solution of 3-(3-chlorosulfonylphenyl)-acrylic acid methyl ester (3) (0.4 g, 1.53 mmol) in dioxane (5 ml) was added to a mixture of 3-methoxyphenylamine (0.189 g, 1.53 mmol) in dioxane (1 ml) and NaHCO3 (0.25 g, 3.06 mmol) in water (3 ml), and the resultant solution was stirred at room temperature until the completion of the reaction (control by TLC). The reaction mixture was evaporated and the residue was partitioned between ethyl acetate and 2N HCl. The organic layer was washed successively with water, saturated NaCl, and dried (Na2SO4). The solvent was removed and the residue was chromatographed on silica gel with petroleum ether-ethyl acetate (2:1, v/v) as eluent. The obtained product was washed with diethyl ether to give the title compound (0.44 g, 82%) as a white solid. 1H NMR (DMSO-d6, HMDSO), δ: 3.60 (3H, s), 3.71 (3H, s); 6.52-6.74 (3H, m); 6.63 (1H, d, J=16.0 Hz); 7.07 (1H, m); 7.43-8.05 (5H, m); 10.27 ppm (1H, br s).

Workup

  1. customThe reaction mixture was evaporated
  2. customthe residue was partitioned between ethyl acetate and 2N HCl
  3. washThe organic layer was washed successively with water, saturated NaCl
  4. dry with materialdried (Na2SO4)
  5. customThe solvent was removed
  6. customthe residue was chromatographed on silica gel with petroleum ether-ethyl acetate (2:1
  7. washThe obtained product was washed with diethyl ether

Sources & evidence

ORD record
ord-ec74867edfc84f2ca95d9def5ad17867
Source dataset
uspto-grants-2009_07
Patent number
US07557140B2

Reaction notes

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