Hydrochloric Acid → 2-(4-((6-Fluoro-2-quinoxalinyl)oxy)phenoxy)-N-(4-(trifluoromethoxy)phenyl)propanamide

HRID 1655541Notes

Reaction equation

HRID 1655541 reaction equation
[F:1][C:2]1[CH:3]=[C:4]2[C:9](=[CH:10][CH:11]=1)[N:8]=[C:7]([O:12][C:13]1[CH:24]=[CH:23][C:16]([O:17][CH:18]([CH3:22])[C:19](Cl)=[O:20])=[CH:15][CH:14]=1)[CH:6]=[N:5]2.Cl.[F:26][C:27]([F:37])([F:36])[O:28][C:29]1[CH:35]=[CH:34][C:32]([NH2:33])=[CH:31][CH:30]=1.C(N(CC)CC)C.Cl>C(Cl)Cl>[F:1][C:2]1[CH:3]=[C:4]2[C:9](=[CH:10][CH:11]=1)[N:8]=[C:7]([O:12][C:13]1[CH:24]=[CH:23][C:16]([O:17][CH:18]([CH3:22])[C:19]([NH:33][C:32]3[CH:34]=[CH:35][C:29]([O:28][C:27]([F:26])([F:36])[F:37])=[CH:30][CH:31]=3)=[O:20])=[CH:15][CH:14]=1)[CH:6]=[N:5]2

Participants

6

Reactant 4

HCID 313Hydrochloric AcidHCID 8471TriethylamineHCID 27810604-(trifluoromethoxy)aniline HydrochlorideHCID 150701642-{4-[(6-Fluoroquinoxalin-2-yl)oxy]phenoxy}propanoyl chloride

Product 1

HCID 197926992-(4-((6-Fluoro-2-quinoxalinyl)oxy)phenoxy)-N-(4-(trifluoromethoxy)phenyl)propanamide

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent2×

Procedure

A solution of 6.1 mmol of 2-(4-((6-fluoro-2-quinoxalinyl)oxy)phenoxy)propionyl chloride in 15 ml of methylene chloride was added dropwise to an ice-cooled solution of 1.43 g (6.7 mmol) of 4-(trifluoromethoxy)aniline hydrochloride and 1.54 g (15 mmol) of triethylamine in 40 ml of methylene chloride. The reaction mixture was stirred at room temperature for 3 hours and then poured into a dilute aqueous HCl solution. The organic layer was separated, washed with a saturated NaHCO3 solution, dried over MgSO4 and evaporated to dryness. The residual solid was taken up in boiling methanol, treated with charcoal and filtered through celite. The filtrate was allowed to cool to give 1.14 g (38 percent of theoretical) of the above-named product as colorless crystals which melted at 140.5°-142° C. The structure of the compound was confirmed by its IR and NMR spectrum. (Compound 8)

Workup

  1. customThe organic layer was separated
  2. washwashed with a saturated NaHCO3 solution
  3. dry with materialdried over MgSO4
  4. customevaporated to dryness
  5. additiontreated with charcoal
  6. filtrationfiltered through celite
  7. temperatureto cool

Sources & evidence

ORD record
ord-0cb4864e595b46d2b9ef799753129676
Source dataset
uspto-grants-1993_10
Patent number
US05250690

Reaction notes

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