m-Chloroperbenzoic acid → 6-Methanesulphonamido-2-methylquinoline-1-oxide

HRID 1761878Notes

Reaction equation

HRID 1761878 reaction equation
ClC1C=CC=C(C(OO)=[O:9])C=1.[CH3:12][S:13]([NH:16][C:17]1[CH:18]=[C:19]2[C:24](=[CH:25][CH:26]=1)[N:23]=[C:22]([CH3:27])[CH:21]=[CH:20]2)(=[O:15])=[O:14]>C(Cl)Cl.C(=O)(O)[O-].[Na+]>[CH3:12][S:13]([NH:16][C:17]1[CH:18]=[C:19]2[C:24](=[CH:25][CH:26]=1)[N+:23]([O-:9])=[C:22]([CH3:27])[CH:21]=[CH:20]2)(=[O:14])=[O:15]

Participants

5

Reactant 2

HCID 70297m-Chloroperbenzoic acidHCID 19813426N-(2-Methylquinolin-6-yl)methanesulfonamide

Product 1

HCID 198134366-Methanesulphonamido-2-methylquinoline-1-oxide

Reagents, catalysts & solvents 2

HCID 6344DichloromethaneSolventHCID 516892Sodium BicarbonateSolvent

Procedure

m-Chloroperbenzoic acid ("MCPBA") (5.2 g) was added portionwise to a solution of 6-methanesulphonamido-2-methyl-quinoline (6 g) in methylene chloride and stirring was continued for 17 hours. The reaction mixture was then diluted with aqueous sodium bicarbonate and the organic layer was separated. The aqueous layer was extracted with methylene chloride. The combined organic layers were washed with aqueous sodium bicarbonate, dried (MgSO4) and evaporated in vacuo to give a solid which was recrystallised from ethanol to give the title compound, yield 1.6 g, m.p. 241°-243°.

Workup

  1. customthe organic layer was separated
  2. extractionThe aqueous layer was extracted with methylene chloride
  3. washThe combined organic layers were washed with aqueous sodium bicarbonate
  4. dry with materialdried (MgSO4)
  5. customevaporated in vacuo
  6. customto give a solid which
  7. customwas recrystallised from ethanol

Sources & evidence

ORD record
ord-1f91c4f003464a079bff2918f78242f8
Source dataset
uspto-grants-1989_05
Patent number
US04829071

Reaction notes

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