Potassium Hydroxide → 2,4-Dichloro-5-methoxy-3-trifluoromethylaniline

HRID 409685Notes

Reaction equation

HRID 409685 reaction equation
[OH-].[K+].[Cl:3][C:4]1[C:9]([C:10]([F:13])([F:12])[F:11])=[C:8]([Cl:14])[C:7]([O:15][CH3:16])=[CH:6][C:5]=1[NH:17]C(=O)C>O.CCO>[Cl:3][C:4]1[C:9]([C:10]([F:13])([F:12])[F:11])=[C:8]([Cl:14])[C:7]([O:15][CH3:16])=[CH:6][C:5]=1[NH2:17]

Participants

5

Reactant 2

HCID 14797Potassium HydroxideHCID 86625462N-(2,4-dichloro-5-methoxy-3-trifluoromethyl-phenyl)-acetamide

Product 1

HCID 866254602,4-Dichloro-5-methoxy-3-trifluoromethylaniline

Reagents, catalysts & solvents 2

HCID 702EthanolSolventHCID 962WaterSolvent

Conditions

Temperature
80 °C

Procedure

A 2 M solution of KOH in water (1.87 mL) is added to a solution of N-(2,4-dichloro-5-methoxy-3-trifluoromethyl-phenyl)-acetamide (104 mg, 0.344 mmol) in EtOH (3 mL). After stirring for 3.5 h at 80° C. followed by cooling to RT, the solvent is evaporated and the residue is taken up in EtOAc and a saturated aqueous solution of NaHCO3. The separated aqueous layer is extracted twice with EtOAc. The organic phases are washed with brine, dried (Na2SO4), filtered and concentrated, providing the title compound: ESI-MS: 258/260 [M-H]−1; tR=4.8 min (system 1); TLC: Rf=0.54 (EtOAc).

Workup

  1. temperatureby cooling to RT
  2. customthe solvent is evaporated
  3. extractionThe separated aqueous layer is extracted twice with EtOAc
  4. washThe organic phases are washed with brine
  5. dry with materialdried (Na2SO4)
  6. filtrationfiltered
  7. concentrationconcentrated

Sources & evidence

ORD record
ord-9835d3d4c3ae44199156f49ba2c6c50b
Source dataset
uspto-grants-2014_06
Patent number
US08759517B2

Reaction notes

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