Sodium Hydroxide → HCID 50991021, compound

HRID 1405530Notes

Reaction equation

HRID 1405530 reaction equation
[CH3:1][CH:2]1[CH2:6][CH2:5][CH2:4][N:3]1[C:7]1[C:8]([C:21]2[CH:26]=[CH:25][CH:24]=[CH:23][CH:22]=2)=[N:9][C:10]2[C:15]([N:16]=1)=[CH:14][C:13]([C:17]([O:19]C)=[O:18])=[CH:12][CH:11]=2.[OH-].[Na+]>CO.O>[CH3:1][CH:2]1[CH2:6][CH2:5][CH2:4][N:3]1[C:7]1[C:8]([C:21]2[CH:26]=[CH:25][CH:24]=[CH:23][CH:22]=2)=[N:9][C:10]2[C:15]([N:16]=1)=[CH:14][C:13]([C:17]([OH:19])=[O:18])=[CH:12][CH:11]=2

Participants

5

Reactant 2

HCID 14798Sodium HydroxideHCID 67041735HCID 67041735, compound

Product 1

HCID 50991021HCID 50991021, compound

Reagents, catalysts & solvents 2

HCID 887MethanolSolventHCID 962WaterSolvent

Procedure

Into a 50-mL round-bottom flask, was placed a solution of methyl 3-(2-methylpyrrolidin-1-yl)-2-phenylquinoxaline-6-carboxylate (110 mg, 0.32 mmol, 1.00 equiv) in methanol (20 mL). Then a solution of sodium hydroxide (63.4 mg, 1.58 mmol, 5.00 equiv) in water (2.5 mL) was added dropwise with stirring. The resulting solution was stirred for 8 h at 50° C. in an oil bath. The resulting mixture was concentrated under vacuum and diluted with 10 ml of water. The pH value of the aqueous solution was adjusted to 3-4 with 1N hydrogen chloride. The resulting solid was collected by filtration and washed with hexane. This resulted in 40 mg (38%) of 3-(2-methylpyrrolidin-1-yl)-2-phenylquinoxaline-6-carboxylic acid as a yellow solid.

Workup

  1. customInto a 50-mL round-bottom flask, was placed
  2. stirringThe resulting solution was stirred for 8 h at 50° C. in an oil bath
  3. concentrationThe resulting mixture was concentrated under vacuum
  4. additiondiluted with 10 ml of water
  5. filtrationThe resulting solid was collected by filtration
  6. washwashed with hexane
  7. customThis resulted in 40 mg (38%) of 3-(2-methylpyrrolidin-1-yl)-2-phenylquinoxaline-6-carboxylic acid as a yellow solid

Sources & evidence

ORD record
ord-821b0d383e0c49faa86371428ed16734
Source dataset
uspto-grants-2014_12
Patent number
US08916560B2

Reaction notes

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