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 431614Notes

Reaction equation

HRID 431614 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-d3f27e0f79de4f24860cbf23ded2fa2c
Source dataset
uspto-grants-2003_12
Patent number
US06660747B2

Reaction notes

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