m-Chloroperbenzoic acid → tert-butyl 2-{2-[2-(2-methoxyethyl)-5-oxido-1H-imidazo[4,5-c]quinolin-1-yl]ethoxy}ethyl(methyl)carbamate

HRID 431466Notes

Reaction equation

HRID 431466 reaction equation
[CH3:1][O:2][CH2:3][CH2:4][C:5]1[N:6]([CH2:18][CH2:19][O:20][CH2:21][CH2:22][N:23]([CH3:31])[C:24](=[O:30])[O:25][C:26]([CH3:29])([CH3:28])[CH3:27])[C:7]2[C:16]3[CH:15]=[CH:14][CH:13]=[CH:12][C:11]=3[N:10]=[CH:9][C:8]=2[N:17]=1.C1C=C(Cl)C=C(C(OO)=[O:40])C=1.C([O-])(O)=O.[Na+]>C(Cl)Cl>[CH3:1][O:2][CH2:3][CH2:4][C:5]1[N:6]([CH2:18][CH2:19][O:20][CH2:21][CH2:22][N:23]([CH3:31])[C:24](=[O:30])[O:25][C:26]([CH3:27])([CH3:28])[CH3:29])[C:7]2[C:16]3[CH:15]=[CH:14][CH:13]=[CH:12][C:11]=3[N+:10]([O-:40])=[CH:9][C:8]=2[N:17]=1

Participants

5

Reactant 3

HCID 70297m-Chloroperbenzoic acidHCID 516892Sodium BicarbonateHCID 21898022tert-butyl 2-{2-[2-(2-methoxyethyl)-1H-imidazo[4,5-c]quinolin-1-yl]ethoxy}ethyl(methyl)carbamate

Product 1

HCID 21898018tert-butyl 2-{2-[2-(2-methoxyethyl)-5-oxido-1H-imidazo[4,5-c]quinolin-1-yl]ethoxy}ethyl(methyl)carbamateYield 94.4%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

A solution of tert-butyl 2-{2-[2-(2-methoxyethyl)-1H-imidazo[4,5-c]quinolin-1-yl]ethoxy}ethyl(methyl)carbamate (7.20 g, 16.8 mmol) in 200 mL of CH2Cl2 was treated with MCPBA (77%, 4.32 g, 19.3 mmol). After stirring 6 h, the reaction mixture was treated with saturated NaHCO3 solution and the layers were separated. The organic portion was washed with H2O and brine then dried over Na2SO4 and concentrated to give 7.05 g of tert-butyl 2-{2-[2-(2-methoxyethyl)-5-oxido-1H-imidazo[4,5-c]quinolin-1-yl]ethoxy}ethyl(methyl)carbamate as a light brown solid.

Workup

  1. customthe layers were separated
  2. washThe organic portion was washed with H2O and brine
  3. dry with materialthen dried over Na2SO4
  4. concentrationconcentrated

Sources & evidence

ORD record
ord-013460660e2449b99b9b17f287a97d73
Source dataset
uspto-grants-2003_12
Patent number
US06660735B2

Reaction notes

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