Methyl iodide → 1-METHOXY-6-CHLORO-2-(TRIFLUOROMETHYL)-1H-IMIDAZO(4,5-b)PYRIDINE

HRID 2082644Notes

Reaction equation

HRID 2082644 reaction equation
[OH:1][N:2]1[C:10]2[C:5](=[N:6][CH:7]=[C:8]([Cl:11])[CH:9]=2)[N:4]=[C:3]1[C:12]([F:15])([F:14])[F:13].CI.[C:18](=O)([O-])[O-].[K+].[K+]>CC(C)=O>[CH3:18][O:1][N:2]1[C:10]2[C:5](=[N:6][CH:7]=[C:8]([Cl:11])[CH:9]=2)[N:4]=[C:3]1[C:12]([F:15])([F:14])[F:13]

Participants

5

Reactant 3

HCID 6328Methyl iodideHCID 11430Potassium CarbonateHCID 30824181-Hydroxyfluromidine

Product 1

HCID 203599161-METHOXY-6-CHLORO-2-(TRIFLUOROMETHYL)-1H-IMIDAZO(4,5-b)PYRIDINE

Reagents, catalysts & solvents 1

HCID 180AcetoneSolvent

Procedure

1-Hydroxy-6-chloro-2-(trifluoromethyl)-1H-imidazo-(4,5-b)pyridine (5 grams), 80 milliliters of acetone, 5 milliliters of methyl iodide, and 10 grams of anhydrous potassium carbonate were mixed, heated and refluxed with stirring for twelve hours. The reaction mixture was then filtered, evaporated and eluted off of a silica column with diethyl ether, yielding the desired 1-methoxy-6-chloro-2-(trifluoromethyl)-1H-imidazo(4,5-b)pyridine product. It was recrystallized from petroleum ether (boiling at 60°-80° C.). The product so obtained melted at 91°-2° C.

Workup

  1. temperatureheated
  2. temperaturerefluxed
  3. filtrationThe reaction mixture was then filtered
  4. customevaporated
  5. washeluted off of a silica column with diethyl ether

Sources & evidence

ORD record
ord-a79f715d6b224631abb9b15e382089b2
Source dataset
uspto-grants-1978_04
Patent number
US04082534

Reaction notes

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