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 1968022Notes

Reaction equation

HRID 1968022 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-5dbd2c3aadcb491d8e5a0b6297f2f991
Source dataset
uspto-grants-2013_04
Patent number
US08420650B2

Reaction notes

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