Dimethylformamide → 4-[5-(3,5-dichlorophenyl)-5-trifluoromethyl-4,5-dihydroisoxazol-3-yl]-2-methyl-N-(1-pyrazolyl)benzoic acid amide

HRID 552620Notes

Reaction equation

HRID 552620 reaction equation
CN(C)C=O.[NH2:6][N:7]1[CH:11]=[CH:10][CH:9]=[N:8]1.[Cl:12][C:13]1[CH:14]=[C:15]([C:20]2([C:35]([F:38])([F:37])[F:36])[O:24][N:23]=[C:22]([C:25]3[CH:33]=[CH:32][C:28]([C:29](Cl)=[O:30])=[C:27]([CH3:34])[CH:26]=3)[CH2:21]2)[CH:16]=[C:17]([Cl:19])[CH:18]=1.C(OCC)(=O)C>CN(C)C(=O)C>[Cl:12][C:13]1[CH:14]=[C:15]([C:20]2([C:35]([F:37])([F:36])[F:38])[O:24][N:23]=[C:22]([C:25]3[CH:33]=[CH:32][C:28]([C:29]([NH:6][N:7]4[CH:11]=[CH:10][CH:9]=[N:8]4)=[O:30])=[C:27]([CH3:34])[CH:26]=3)[CH2:21]2)[CH:16]=[C:17]([Cl:19])[CH:18]=1

Participants

6

Reactant 4

HCID 6228DimethylformamideHCID 8857Ethyl AcetateHCID 118293521H-pyrazol-1-amineHCID 866114794-(5-(3,5-Dichlorophenyl)-5-trifluoromethyl-4,5-dihydroisoxazole-3-yl)-2-methylbenzoyl chloride

Product 1

HCID 671639784-[5-(3,5-dichlorophenyl)-5-trifluoromethyl-4,5-dihydroisoxazol-3-yl]-2-methyl-N-(1-pyrazolyl)benzoic acid amide

Reagents, catalysts & solvents 1

HCID 31374DimethylacetamideSolvent

Procedure

In 4 mL of N,N-dimethylacetamide, 0.23 g of 50% N,N-dimethylformamide solution of 1-aminopyrazole was added, and 0.30 g of 4-[5-(3,5-dichlorophenyl)-5-trifluoromethyl-4,5-dihydroisoxazol-3-yl]-2-methylbenzoyl-chloride synthesized in Step 4 of Synthetic Example 1 was added at room temperature with stirring, and stirred at the same temperature for 2 hours. After the completion of the reaction, 20 mL of ethyl acetate was added in the reaction mixture, washed with water (20 mL×1), and then the organic phase was dehydrated with and dried over saturated sodium chloride aqueous solution and then anhydrous magnesium sulfate, and the solvent was distilled off under reduced pressure. The residue was purified with neutral alumina column chromatography that was eluated with chloroform to obtain 0.22 g of the aimed product as yellow resinous substance.

Workup

  1. stirringstirred at the same temperature for 2 hours
  2. additionwas added in the reaction mixture
  3. washwashed with water (20 mL×1)
  4. dry with materialdried over saturated sodium chloride aqueous solution
  5. distillationanhydrous magnesium sulfate, and the solvent was distilled off under reduced pressure
  6. customThe residue was purified with neutral alumina column chromatography that

Sources & evidence

ORD record
ord-5454234fc3664ff48eda7fb854883d2e
Source dataset
uspto-grants-2011_05
Patent number
US07951828B1

Reaction notes

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