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Sodium Hydroxide → 3-[Methyl(propan-2-yl)amino]-2-(5-phenylfuran-2-yl)quinoxaline-6-carboxylic acid

HRID 1403464
Notes
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Reaction equation

HRID 1403464 reaction equation
[CH3:1][N:2]([CH:28]([CH3:30])[CH3:29])[C:3]1[C:4]([C:17]2[O:18][C:19]([C:22]3[CH:27]=[CH:26][CH:25]=[CH:24][CH:23]=3)=[CH:20][CH:21]=2)=[N:5][C:6]2[C:11]([N:12]=1)=[CH:10][C:9]([C:13]([O:15]C)=[O:14])=[CH:8][CH:7]=2.[OH-].[Na+]>CO.O>[CH3:1][N:2]([CH:28]([CH3:30])[CH3:29])[C:3]1[C:4]([C:17]2[O:18][C:19]([C:22]3[CH:27]=[CH:26][CH:25]=[CH:24][CH:23]=3)=[CH:20][CH:21]=2)=[N:5][C:6]2[C:11]([N:12]=1)=[CH:10][C:9]([C:13]([OH:15])=[O:14])=[CH:8][CH:7]=2
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

5

Reactant 2

HCID 14798Sodium HydroxideHCID 70654220Methyl 3-[methyl(propan-2-yl)amino]-2-(5-phenylfuran-2-yl)quinoxaline-6-carboxylate

Product 1

HCID 601985343-[Methyl(propan-2-yl)amino]-2-(5-phenylfuran-2-yl)quinoxaline-6-carboxylic acidYield 69.8%

Reagents, catalysts & solvents 2

HCID 887MethanolSolventHCID 962
Water
Solvent

Procedure

To a solution of methyl 3-[methyl(propan-2-yl)amino]-2-(5-phenylfuran-2-yl)quinoxaline-6-carboxylate (150 mg, 0.37 mmol) in methanol (30 mL) and water (2 mL) was added sodium hydroxide (59.8 mg, 1.50 mmol) with stirring overnight at room temperature. The reaction mixture was concentrated in vacuo, dissolved in water (30 mL) and adjusted to pH 5 with HCl (3N). The solids were collected by filtration to afford 3-[methyl(propan-2-yl)amino]-2-(5-phenylfuran-2-yl)quinoxaline-6-carboxylic acid as a light yellow solid (100 mg, 69%).

Workup

  1. concentrationThe reaction mixture was concentrated in vacuo
  2. dissolutiondissolved in water (30 mL)
  3. filtrationThe solids were collected by filtration

Sources & evidence

ORD record
ord-2c2bd8169d8d480d9bec5641546de371
Source dataset
uspto-grants-2014_12
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US08912188B2

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes