Sodium Hydroxide → 4-[N-(5-Bromo-2-(phenethyl)benzyl)amino]Benzoic Acid

HRID 355755Notes

Reaction equation

HRID 355755 reaction equation
[Br:1][C:2]1[CH:3]=[CH:4][C:5]([CH2:20][CH2:21][C:22]2[CH:27]=[CH:26][CH:25]=[CH:24][CH:23]=2)=[C:6]([CH:19]=1)[CH2:7][NH:8][C:9]1[CH:18]=[CH:17][C:12]([C:13]([O:15]C)=[O:14])=[CH:11][CH:10]=1.[OH-].[Na+]>CO.C1COCC1>[Br:1][C:2]1[CH:3]=[CH:4][C:5]([CH2:20][CH2:21][C:22]2[CH:23]=[CH:24][CH:25]=[CH:26][CH:27]=2)=[C:6]([CH:19]=1)[CH2:7][NH:8][C:9]1[CH:10]=[CH:11][C:12]([C:13]([OH:15])=[O:14])=[CH:17][CH:18]=1

Participants

5

Reactant 2

HCID 14798Sodium HydroxideHCID 22675570Methyl 4-[N-(5-bromo-2-(phenethyl)benzyl)amino]benzoate

Product 1

HCID 226755474-[N-(5-Bromo-2-(phenethyl)benzyl)amino]Benzoic AcidYield 95.1%

Reagents, catalysts & solvents 2

HCID 887MethanolSolventHCID 8028TetrahydrofuranSolvent

Procedure

Methyl 4-[N-(5-bromo-2-(phenethyl)benzyl)amino]benzoate (0.25 g) and 2N aqueous NaOH (5 ml) were heated at reflux in a mixture of methanol (5 ml) and THF (5 ml) for 2 hours. The organic solvents were evaporated, the residue acidified with 2N HCl and extracted with ethyl acetate. The extracts were washed with brine, dried (MgSO4), filtered and evaporated. The residue was purified by crystallisation from diethyl ether and hexane to give the title compound (0.23 g; mpt 132°-134° C.).

Workup

  1. customThe organic solvents were evaporated
  2. extractionextracted with ethyl acetate
  3. washThe extracts were washed with brine
  4. dry with materialdried (MgSO4)
  5. filtrationfiltered
  6. customevaporated
  7. customThe residue was purified by crystallisation from diethyl ether and hexane

Sources & evidence

ORD record
ord-0e3af3563300472c859e40c8e4921999
Source dataset
uspto-grants-1998_11
Patent number
US05834468

Reaction notes

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