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

HRID 586854
Notes
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Reaction equation

HRID 586854 reaction equation
[CH2:1]([O:5][CH2:6][CH2:7][O:8][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)[CH2:2][CH2:3][CH3:4].[OH-].[Na+]>CO.C1COCC1>[CH2:1]([O:5][CH2:6][CH2:7][O:8][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)[CH2:2][CH2:3][CH3:4]
ParticipantsConditionsProcedureWorkupSources & evidenceReaction notes

Participants

5

Reactant 2

HCID 14798Sodium HydroxideHCID 22329222methyl 7-[4-(2-butoxyethoxy)phenyl]-1-formyl-2,3-dihydro-1H-1-benzazepine-4-carboxylate

Product 1

HCID 223290837-[4-(2-butoxyethoxy)phenyl]-1-formyl-2,3-dihydro-1H-1-benzazepine-4-carboxylic acidYield 107.9%

Reagents, catalysts & solvents 2

HCID 887MethanolSolventHCID 8028
Tetrahydrofuran
Solvent

Conditions

Temperature
55 °C

Procedure

In methanol (25 ml) and THF (25 ml) was dissolved methyl 7-[4-(2-butoxyethoxy)phenyl]-1-formyl-2,3-dihydro-1H-1-benzazepine-4-carboxylate (0.23 g). To the solution was added 1N sodium hydroxide solution (5 ml), and the mixture was stirred at 55° C. for 1.5 hours 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-(2-butoxyethoxy)phenyl]-1-formyl-2,3-dihydro-1H-1-benzazepine-4-carboxylic acid (0.24 g) as colorless amorphous.

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-3099eb6d6d084ff69e3400a2835044bb
Source dataset
uspto-grants-2005_08
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US06936602B1

Reaction notes

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On this pageParticipantsConditionsProcedureWorkupSources & evidenceReaction notes