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Potassium Carbonate → HCID 53645791, compound

HRID 1004372
Notes
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Reaction equation

HRID 1004372 reaction equation
C(=O)([O-])[O-].[K+].[K+].Cl[C:8]1[CH:13]=[CH:12][C:11]([C:14]([F:17])([F:16])[F:15])=[CH:10][N:9]=1.[CH3:18][O:19][N:20]=[C:21]([C:29]1[O:30][CH2:31][CH2:32][N:33]=1)[C:22]1[CH:27]=[CH:26][CH:25]=[CH:24][C:23]=1[OH:28].[OH-].[Na+]>CN(C)C=O>[CH3:18][O:19][N:20]=[C:21]([C:29]1[O:30][CH2:31][CH2:32][N:33]=1)[C:22]1[CH:27]=[CH:26][CH:25]=[CH:24][C:23]=1[O:28][C:8]1[CH:13]=[CH:12][C:11]([C:14]([F:17])([F:16])[F:15])=[CH:10][N:9]=1
ParticipantsConditionsProcedureWorkupSources & evidenceReaction notes

Participants

6

Reactant 4

HCID 11430Potassium CarbonateHCID 14798Sodium HydroxideHCID 923422-Chloro-5-(trifluoromethyl)pyridineHCID 1361714202-hydroxyphenyl 2-oxazolin-2-yl ketone O-methyloxime

Product 1

HCID 53645791HCID 53645791, compoundYield 52.1%

Reagents, catalysts & solvents 1

HCID 6228
Dimethylformamide
Solvent

Conditions

Temperature
100 °C

Procedure

N,N-Dimethylformamide (2.2 ml), potassium carbonate (210 mg, 1.5 mmol) and 2-chloro-5-trifluoromethylpyridine (220 mg, 1.2 mmol) were added to 2-hydroxyphenyl 2-oxazolin-2-yl ketone O-methyloxime (220 mg, 1.0 mmol), and the mixture was stirred at 100° C. for 2.5 hours. After completion of the reaction, aqueous 1N sodiumhydroxide solution NaOH (100 ml) was added, and the mixture was extracted with ether. The ether layer was dried over anhydrous sodium sulfate and concentrated under reduced pressure. The residue was purified by silica gel chromatography (ethyl acetate/n-hexane) to give 2-(5-trifluoromethyl-2-pyridyloxy)phenyl 2-oxazolin-2-yl ketone O-methyloxime (190 mg, 52.1%) as an oil.

Workup

  1. additionwas added
  2. extractionthe mixture was extracted with ether
  3. dry with materialThe ether layer was dried over anhydrous sodium sulfate
  4. concentrationconcentrated under reduced pressure
  5. customThe residue was purified by silica gel chromatography (ethyl acetate/n-hexane)

Sources & evidence

ORD record
ord-2801425c3d774f3297a624b77402d3ac
Source dataset
uspto-grants-2000_04
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US06048885

Reaction notes

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On this pageParticipantsConditionsProcedureWorkupSources & evidenceReaction notes