Triethylamine → N-methoxy-N-methyl-(E)-3-{2-cyclopropyl-4-(4-fluorophenyl)quinolin-3-yl}propenamide

HRID 1197641Notes

Reaction equation

HRID 1197641 reaction equation
CS(Cl)(=O)=O.[CH3:6][O:7][N:8]([CH3:34])[C:9](=[O:33])[CH2:10][CH:11]([C:13]1[C:14]([CH:30]2[CH2:32][CH2:31]2)=[N:15][C:16]2[C:21]([C:22]=1[C:23]1[CH:28]=[CH:27][C:26]([F:29])=[CH:25][CH:24]=1)=[CH:20][CH:19]=[CH:18][CH:17]=2)O.C(N(CC)CC)C>ClCCl>[CH3:6][O:7][N:8]([CH3:34])[C:9](=[O:33])/[CH:10]=[CH:11]/[C:13]1[C:14]([CH:30]2[CH2:31][CH2:32]2)=[N:15][C:16]2[C:21]([C:22]=1[C:23]1[CH:24]=[CH:25][C:26]([F:29])=[CH:27][CH:28]=1)=[CH:20][CH:19]=[CH:18][CH:17]=2

Participants

5

Reactant 3

HCID 8471Triethylamine2×HCID 31297Methanesulfonyl chlorideHCID 18954750N-methoxy-N-methyl-3-{2-cyclopropyl-4-(4-fluorophenyl)quinolin-3-yl}-3-hydroxypropanamide

Product 1

HCID 22392020N-methoxy-N-methyl-(E)-3-{2-cyclopropyl-4-(4-fluorophenyl)quinolin-3-yl}propenamideYield 80%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent2×

Procedure

A dichloromethane (10 ml) solution of methanesulfonyl chloride (1.44 g, 12.6 mmol) was added to a dichloromethane (40 ml) solution of N-methoxy-N-methyl-3-{2-cyclopropyl-4-(4-fluorophenyl)quinolin-3-yl}-3-hydroxypropanamide (3.30 g, 8.38 mmol) and triethylamine (1.27 g, 12.6 mmol). The resulting mixture was stirred at 0 ° C. for 30 minutes and at room temperature for 3 hours before treatment with triethylamine (1.27 g, 12.6 mmol). The mixture was heated to reflux for 3 hours, quenched with saturated NaHCO3 aq solution, and extracted with dichloromethane. The organic layer was washed with saturated NaCl aq solution, dried over magnesium sulfate, and then concentrated. The residue was purified by column chromatography (hexane:ethyl acetate=3:1) to give N-methoxy-N-methyl-(E)-3-{2-cyclopropyl-4-(4-fluorophenyl)quinolin-3-yl}propenamide (2.52 g, 80% yield).

Workup

  1. temperatureThe mixture was heated
  2. temperatureto reflux for 3 hours
  3. customquenched with saturated NaHCO3 aq solution
  4. extractionextracted with dichloromethane
  5. washThe organic layer was washed with saturated NaCl aq solution
  6. dry with materialdried over magnesium sulfate
  7. concentrationconcentrated
  8. customThe residue was purified by column chromatography (hexane:ethyl acetate=3:1)

Sources & evidence

ORD record
ord-f962fe19f3e34b01be9f6567c4befb7f
Source dataset
uspto-grants-1994_01
Patent number
US05276154

Reaction notes

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