m-Chloroperbenzoic acid → HCID 71250990, compound

HRID 1477288Notes

Reaction equation

HRID 1477288 reaction equation
[CH2:1]([S:3][C:4]1[C:5]([C:10]2[N:22]([CH3:23])[C:13]3=[N:14][CH:15]=[C:16]([C:18]([F:21])([F:20])[F:19])[CH:17]=[C:12]3[N:11]=2)=[N:6][CH:7]=[CH:8][CH:9]=1)[CH3:2].ClC1C=CC=C(C(OO)=[O:32])C=1.C(=O)([O-])O.[Na+]>C(Cl)(Cl)Cl>[CH2:1]([S:3]([C:4]1[C:5]([C:10]2[N:22]([CH3:23])[C:13]3=[N:14][CH:15]=[C:16]([C:18]([F:21])([F:19])[F:20])[CH:17]=[C:12]3[N:11]=2)=[N:6][CH:7]=[CH:8][CH:9]=1)=[O:32])[CH3:2]

Participants

5

Reactant 3

HCID 70297m-Chloroperbenzoic acidHCID 516892Sodium BicarbonateHCID 71246832HCID 71246832, compound

Product 1

HCID 71250990HCID 71250990, compoundYield 13.4%

Reagents, catalysts & solvents 1

HCID 6212ChloroformSolvent

Procedure

To a mixture of 2-(3-ethylsulfanyl pyridin-2-yl)-3-methyl-6-trifluoromethyl-3H-imidazo[4,5-b]pyridine (0.62 g) and chloroform (10 ml) was added m-chloroperbenzoic acid (purity: not less than 65%) (0.79 g) while ice-cooling, and then the mixture was stirred at room temperature for 5 hours. To the reaction mixture was poured saturated aqueous sodium hydrogen carbonate solution, and the mixture was extracted with chloroform. The organic layer was washed with water, dried over anhydrous magnesium sulfate, and concentrated under reduced pressure. The resulting residue was subjected to silica gel column chromatography to give 2-(3-ethylsulfinyl pyridin-2-yl)-3-methyl-6-trifluoromethyl-3H-imidazo[4,5-b]pyridine (87 mg), which is hereinafter referred to as “the present compound 2”, and 2-(3-ethylsulfonylpyridin-2-yl)-3-methyl-6-trifluoromethyl-3H-imidazo[4,5-b]pyridine (0.49 g), which is hereinafter referred to as “the present compound 3”.

Workup

  1. temperaturecooling
  2. extractionthe mixture was extracted with chloroform
  3. washThe organic layer was washed with water
  4. dry with materialdried over anhydrous magnesium sulfate
  5. concentrationconcentrated under reduced pressure

Sources & evidence

ORD record
ord-580f5e5326b94d02b714226953a3f70e
Source dataset
uspto-grants-2016_08
Patent number
US09403771B2

Reaction notes

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