Hydrogen Peroxide → HCID 67050624, compound

HRID 1799863Notes

Reaction equation

HRID 1799863 reaction equation
[C:1]([C:3]1[N:4]=[C:5]2[C:11]3[CH:12]=[CH:13][C:14]([C:16]([O:18][CH3:19])=[O:17])=[CH:15][C:10]=3[O:9][CH2:8][CH2:7][N:6]2[CH:20]=1)#[N:2].C(=O)([O-])[O-:22].[K+].[K+].OO>CS(C)=O.O>[C:1]([C:3]1[N:4]=[C:5]2[C:11]3[CH:12]=[CH:13][C:14]([C:16]([O:18][CH3:19])=[O:17])=[CH:15][C:10]=3[O:9][CH2:8][CH2:7][N:6]2[CH:20]=1)(=[O:22])[NH2:2]

Participants

6

Reactant 3

HCID 784Hydrogen PeroxideHCID 11430Potassium CarbonateHCID 67050620Methyl 2-cyano-5,6-dihydroimidazo[1,2-d][1,4]benzoxazepine-9-carboxylate

Product 1

HCID 67050624HCID 67050624, compoundYield 75.8%

Reagents, catalysts & solvents 2

HCID 679Dimethyl SulfoxideSolventHCID 962WaterSolvent2×

Procedure

Methyl 2-cyano-5,6-dihydrobenzo[f]imidazo[1,2-d][1,4]oxazepine-9-carboxylate (0.46 g, 1.7 mmol) was stirred with potassium carbonate (469 mg, 3.4 mmol), water (1.2 mL) and hydrogen peroxide (408 mg, 6 mmol) in DMSO (7 mL) for 4 hours. The mixture was diluted with 70 mL of water and extracted with ethyl acetate. Ethyl acetate solution was washed with water, 5% Na2S2O3, water, brine, dried over MgSO4 and concentrated under vacuum to give methyl 2-carbamoyl-5,6-dihydrobenzo[f]imidazo[1,2-d][1,4]oxazepine-9-carboxylate (0.37 g).

Workup

  1. extractionextracted with ethyl acetate
  2. washEthyl acetate solution was washed with water, 5% Na2S2O3, water, brine
  3. dry with materialdried over MgSO4
  4. concentrationconcentrated under vacuum

Sources & evidence

ORD record
ord-c25fe961b2634f3ba5f7ecd12faea0b4
Source dataset
uspto-grants-2013_01
Patent number
US08343955B2

Reaction notes

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