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Sodium Hydroxide → 7-[4-[N-(2-ethoxyethyl)-N-ethylamino]phenyl]-1-formyl-2,3-dihydro-1H-1-benzazepine-4-carboxylic acid

HRID 586858
Notes
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Reaction equation

HRID 586858 reaction equation
[CH2:1]([O:3][CH2:4][CH2:5][N:6]([C:9]1[CH:14]=[CH:13][C:12]([C:15]2[CH:16]=[CH:17][C:18]3[N:24]([CH:25]=[O:26])[CH2:23][CH2:22][C:21]([C:27]([O:29]C)=[O:28])=[CH:20][C:19]=3[CH:31]=2)=[CH:11][CH:10]=1)[CH2:7][CH3:8])[CH3:2].[OH-].[Na+]>CO.C1COCC1>[CH2:1]([O:3][CH2:4][CH2:5][N:6]([C:9]1[CH:14]=[CH:13][C:12]([C:15]2[CH:16]=[CH:17][C:18]3[N:24]([CH:25]=[O:26])[CH2:23][CH2:22][C:21]([C:27]([OH:29])=[O:28])=[CH:20][C:19]=3[CH:31]=2)=[CH:11][CH:10]=1)[CH2:7][CH3:8])[CH3:2]
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

5

Reactant 2

HCID 14798Sodium HydroxideHCID 22329254methyl 7-[4-[N-(2-ethoxyethyl)-N-ethylamino]phenyl]-1-formyl-2,3-dihydro-1H-1-benzazepine-4-carboxylate

Product 1

HCID 223288977-[4-[N-(2-ethoxyethyl)-N-ethylamino]phenyl]-1-formyl-2,3-dihydro-1H-1-benzazepine-4-carboxylic acidYield 89.9%

Reagents, catalysts & solvents 2

HCID 887MethanolSolvent
HCID 8028
Tetrahydrofuran
Solvent

Procedure

In methanol (25 ml) and THF (25 ml) was dissolved methyl 7-[4-[N-(2-ethoxyethyl)-N-ethylamino]phenyl]-1-formyl-2,3-dihydro-1H-1-benzazepine-4-carboxylate (0.23 g). To the solution was added 1N sodium hydroxide solution (5.5 ml), and the mixture was stirred at room temperature overnight and concentrated. To the residue was added water, and the mixture was neutralized with 1N hydrochloric acid and extracted with ethyl acetate. The organic layer was washed with water and saturated brine and dried with anhydrous magnesium sulfate, and the solvent was evaporated to give 7-[4-[N-(2-ethoxyethyl)-N-ethylamino]phenyl]-1-formyl-2,3-dihydro-1H-1-benzazepine-4-carboxylic acid (0.2 g) as pale green crystals.

Workup

  1. concentrationconcentrated
  2. additionTo the residue was added water
  3. extractionextracted with ethyl acetate
  4. washThe organic layer was washed with water and saturated brine
  5. dry with materialdried with anhydrous magnesium sulfate
  6. customthe solvent was evaporated

Sources & evidence

ORD record
ord-9d41a300628f4cd785153322577542c3
Source dataset
uspto-grants-2005_08
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US06936602B1

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes