Methyl iodide → Ethyl 2-(4-fluorophenyl)-3-methyl-3-(1-methyl-1H-1,2,4-triazol-5-yl)-4-oxo-1,2,3,4-tetrahydroquinoline-5-carboxylate

HRID 907904Notes

Reaction equation

HRID 907904 reaction equation
[F:1][C:2]1[CH:7]=[CH:6][C:5]([CH:8]2[CH:17]([C:18]3[N:22]([CH3:23])[N:21]=[CH:20][N:19]=3)[C:16](=[O:24])[C:15]3[C:14]([C:25]([O:27][CH2:28][CH3:29])=[O:26])=[CH:13][CH:12]=[CH:11][C:10]=3[NH:9]2)=[CH:4][CH:3]=1.[C:30](=O)([O-])[O-].[K+].[K+].IC>CN(C)C=O>[F:1][C:2]1[CH:7]=[CH:6][C:5]([CH:8]2[C:17]([CH3:30])([C:18]3[N:22]([CH3:23])[N:21]=[CH:20][N:19]=3)[C:16](=[O:24])[C:15]3[C:14]([C:25]([O:27][CH2:28][CH3:29])=[O:26])=[CH:13][CH:12]=[CH:11][C:10]=3[NH:9]2)=[CH:4][CH:3]=1

Participants

5

Reactant 3

HCID 6328Methyl iodideHCID 11430Potassium CarbonateHCID 67260599ethyl 2-(4-fluorophenyl)-3-(1-methyl-1H-1,2,4-triazol-5-yl)-4-oxo-1,2,3,4-tetrahydroquinoline-5-carboxylate

Product 1

HCID 67262130Ethyl 2-(4-fluorophenyl)-3-methyl-3-(1-methyl-1H-1,2,4-triazol-5-yl)-4-oxo-1,2,3,4-tetrahydroquinoline-5-carboxylateYield 77%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent2×

Conditions

Temperature
0 °C

Procedure

A solution of ethyl 2-(4-fluorophenyl)-3-(1-methyl-1H-1,2,4-triazol-5-yl)-4-oxo-1,2,3,4-tetrahydroquinoline-5-carboxylate (100 mg, 0.25 mmol) and potassium carbonate (70 mg, 0.51 mmol) in N,N-dimethylformamide (10 mL) was stirred at room temperature for 1 hr. Then the solution was cooled to 0° C. and a solution of iodomethane (0.1 mL) in N,N-dimethylformamide (1 mL) was added dropwise at 0° C. over 1 hr, stirred at room temperature overnight. The mixture was quenched with water (30 mL), extracted with ethyl acetate, washed with brine, and then the extraction was evaporated to get the crude product, which was used in next step without further purification (80 mg, yield 77%). LC-MS (ESI) m/z: 409 (M+1)+.

Workup

  1. customThe mixture was quenched with water (30 mL)
  2. extractionextracted with ethyl acetate
  3. washwashed with brine
  4. extractionthe extraction
  5. customwas evaporated

Sources & evidence

ORD record
ord-9c8c36c8cf8d47afb28ec8b3967f6c50
Source dataset
uspto-grants-2011_09
Patent number
US08012976B2

Reaction notes

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