Chloroacetyl chloride → N-[3-({2-[(chloroacetyl)amino]imidazo[1,2-b]pyridazin-6-yl}oxy)phenyl]-3-(trifluoromethyl)benzamide

HRID 1668208Notes

Reaction equation

HRID 1668208 reaction equation
[NH2:1][C:2]1[N:3]=[C:4]2[CH:9]=[CH:8][C:7]([O:10][C:11]3[CH:12]=[C:13]([NH:17][C:18](=[O:29])[C:19]4[CH:24]=[CH:23][CH:22]=[C:21]([C:25]([F:28])([F:27])[F:26])[CH:20]=4)[CH:14]=[CH:15][CH:16]=3)=[N:6][N:5]2[CH:30]=1.[Cl:31][CH2:32][C:33](Cl)=[O:34].C(N(CC)CC)C.[Cl-].[NH4+]>O1CCCC1>[Cl:31][CH2:32][C:33]([NH:1][C:2]1[N:3]=[C:4]2[CH:9]=[CH:8][C:7]([O:10][C:11]3[CH:12]=[C:13]([NH:17][C:18](=[O:29])[C:19]4[CH:24]=[CH:23][CH:22]=[C:21]([C:25]([F:28])([F:27])[F:26])[CH:20]=4)[CH:14]=[CH:15][CH:16]=3)=[N:6][N:5]2[CH:30]=1)=[O:34]

Participants

6

Reactant 4

HCID 6577Chloroacetyl chlorideHCID 8471TriethylamineHCID 25517Ammonium ChlorideHCID 57385788N-{3-[(2-aminoimidazo[1,2-b]pyridazin-6-yl)oxy]phenyl}-3-(trifluoromethyl)benzamide

Product 1

HCID 57505744N-[3-({2-[(chloroacetyl)amino]imidazo[1,2-b]pyridazin-6-yl}oxy)phenyl]-3-(trifluoromethyl)benzamideYield 71.1%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Procedure

To a solution of N-{3-[(2-aminoimidazo[1,2-b]pyridazin-6-yl)oxy]phenyl}-3-(trifluoromethyl)benzamide (500 mg, 1.20 mmol) in tetrahydrofuran (10 mL) were added chloroacetyl chloride (168 μL, 1.45 mmol) and triethylamine (253 μL, 1.81 mmol), and the mixture was stirred at room temperature for 16 hr. Saturated aqueous ammonium chloride solution was added to the reaction mixture, and the mixture was extracted with ethyl acetate. The extract was washed with saturated brine, dried over anhydrous magnesium sulfate, and filtrated. The solvent was evaporated under reduced pressure, and the residue was washed with ethanol to give the title compound (418 mg, 71%) as a pale-yellow powder.

Workup

  1. extractionthe mixture was extracted with ethyl acetate
  2. washThe extract was washed with saturated brine
  3. dry with materialdried over anhydrous magnesium sulfate
  4. filtrationfiltrated
  5. customThe solvent was evaporated under reduced pressure
  6. washthe residue was washed with ethanol

Sources & evidence

ORD record
ord-b583a54ade654562adaa982cb210e2ec
Source dataset
uspto-grants-2011_10
Patent number
US08044049B2

Reaction notes

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