Sodium Chloride → 1-(2-(1-hydroxy-4-oxocyclohexyl)ethyl)-7-methoxyquinoxalin-2(1H)-one

HRID 2193122Notes

Reaction equation

HRID 2193122 reaction equation
[OH:1][C:2]1([CH2:12][CH2:13][N:14]2[C:23]3[C:18](=[CH:19][CH:20]=[C:21]([O:24][CH3:25])[CH:22]=3)[N:17]=[CH:16][C:15]2=[O:26])[CH2:11][CH2:10][C:5]2(OCC[O:6]2)[CH2:4][CH2:3]1.FC(F)(F)C(O)=O.C(=O)([O-])O.[Na+].[Cl-].[Na+]>C(OCC)(=O)C.O1CCOCC1>[OH:1][C:2]1([CH2:12][CH2:13][N:14]2[C:23]3[C:18](=[CH:19][CH:20]=[C:21]([O:24][CH3:25])[CH:22]=3)[N:17]=[CH:16][C:15]2=[O:26])[CH2:11][CH2:10][C:5](=[O:6])[CH2:4][CH2:3]1

Participants

7

Reactant 4

HCID 5234Sodium ChlorideHCID 6422Trifluoroacetic acidHCID 516892Sodium BicarbonateHCID 593979861-(2-(8-Hydroxy-1,4-dioxaspiro(4.5)decan-8-yl)ethyl)-7-methoxyquinoxalin-2(1h)-one

Product 1

HCID 593979991-(2-(1-hydroxy-4-oxocyclohexyl)ethyl)-7-methoxyquinoxalin-2(1H)-one

Reagents, catalysts & solvents 2

HCID 8857Ethyl AcetateSolventHCID 312751,4-DioxaneSolvent

Procedure

To 8 mL of a dioxane suspension containing 0.25 g of 1-(2-(8-hydroxy-1,4-dioxaspiro(4.5)decan-8-yl)ethyl)-7-methoxyquinoxalin-2(1H)-one, 3 mL of an 80% aqueous trifluoroacetic acid solution was dividedly added at room temperature, and the mixture was stirred for 5 hours and 15 minutes. An aqueous saturated sodium hydrogen carbonate solution was added with the reaction mixture, and then added with ethyl acetate and sodium chloride. The organic layer was separated, and dried over anhydrous magnesium sulfate, and the solvent was removed under reduced pressure. The residue thus obtained was purified by silica gel column chromatography [eluent; hexane:ethyl acetate 1:3] to obtain 0.10 g of a colorless oily substance, 1-(2-(1-hydroxy-4-oxocyclohexyl)ethyl)-7-methoxyquinoxalin-2(1H)-one.

Workup

  1. additionwas dividedly added at room temperature
  2. customThe organic layer was separated
  3. dry with materialdried over anhydrous magnesium sulfate
  4. customthe solvent was removed under reduced pressure
  5. customThe residue thus obtained
  6. customwas purified by silica gel column chromatography [eluent; hexane:ethyl acetate 1:3]

Sources & evidence

ORD record
ord-0743391643aa483fb3753a3c9885b4e2
Source dataset
uspto-grants-2012_12
Patent number
US08329694B2

Reaction notes

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