m-Chloroperbenzoic acid → N-[2-(7-benzyloxy-2-ethoxymethyl-5-oxido-1H-imidazo[4,5-c]quinolin-1-yl)-1,1-dimethylethyl]acetamide

HRID 598366Notes

Reaction equation

HRID 598366 reaction equation
C1C=C(Cl)C=C(C(OO)=[O:9])C=1.[CH2:12]([O:19][C:20]1[CH:21]=[CH:22][C:23]2[C:24]3[N:32]([CH2:33][C:34]([NH:37][C:38](=[O:40])[CH3:39])([CH3:36])[CH3:35])[C:31]([CH2:41][O:42][CH2:43][CH3:44])=[N:30][C:25]=3[CH:26]=[N:27][C:28]=2[CH:29]=1)[C:13]1[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=1>C(Cl)(Cl)Cl>[CH2:12]([O:19][C:20]1[CH:21]=[CH:22][C:23]2[C:24]3[N:32]([CH2:33][C:34]([NH:37][C:38](=[O:40])[CH3:39])([CH3:36])[CH3:35])[C:31]([CH2:41][O:42][CH2:43][CH3:44])=[N:30][C:25]=3[CH:26]=[N+:27]([O-:9])[C:28]=2[CH:29]=1)[C:13]1[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=1

Participants

4

Reactant 2

HCID 70297m-Chloroperbenzoic acid2×HCID 67051087N-[2-(7-benzyloxy-2-ethoxymethyl-1H-imidazo[4,5-c]quinolin-1-yl)-1,1-dimethylethyl]acetamide

Product 1

HCID 67051135N-[2-(7-benzyloxy-2-ethoxymethyl-5-oxido-1H-imidazo[4,5-c]quinolin-1-yl)-1,1-dimethylethyl]acetamideYield 100.5%

Reagents, catalysts & solvents 1

HCID 6212ChloroformSolvent

Procedure

mCPBA (60% pure, 1.70 g,) was added to a solution of N-[2-(7-benzyloxy-2-ethoxymethyl-1H-imidazo[4,5-c]quinolin-1-yl)-1,1-dimethylethyl]acetamide (1.71 g, 3.83 mmol) in chloroform (100 mL). The reaction was stirred for 4 hours and then an additional 0.57 g of mCPBA was added. The reaction was stirred for 2 more hours and then quenched by adding aqueous 1% sodium carbonate. The layers were separated and the aqueous fraction was extracted with five portions of chloroform. The combined organic fractions were washed with brine, dried over sodium sulfate, filtered, and concentrated to give 1.78 g of crude N-[2-(7-benzyloxy-2-ethoxymethyl-5-oxido-1H-imidazo[4,5-c]quinolin-1-yl)-1,1-dimethylethyl]acetamide as an orange foam.

Workup

  1. stirringThe reaction was stirred for 2 more hours
  2. customquenched
  3. additionby adding aqueous 1% sodium carbonate
  4. customThe layers were separated
  5. extractionthe aqueous fraction was extracted with five portions of chloroform
  6. washThe combined organic fractions were washed with brine
  7. dry with materialdried over sodium sulfate
  8. filtrationfiltered
  9. concentrationconcentrated

Sources & evidence

ORD record
ord-75e8194f8f2e48ea8be3f8eb65e37aa5
Source dataset
uspto-grants-2011_03
Patent number
US07897597B2

Reaction notes

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