Potassium Phosphate, Tribasic → 4-[5-(3,5-dichlorophenyl)-5-trifluoromethyl-4,5-dihydro-isoxazole-3-yl]-2-methyl-N-(5-pyrimidinyl)benzoic acid amide

HRID 1187966Notes

Reaction equation

HRID 1187966 reaction equation
[Cl:1][C:2]1[CH:3]=[C:4]([C:9]2([C:24]([F:27])([F:26])[F:25])[O:13][N:12]=[C:11]([C:14]3[CH:22]=[CH:21][C:17]([C:18]([NH2:20])=[O:19])=[C:16]([CH3:23])[CH:15]=3)[CH2:10]2)[CH:5]=[C:6]([Cl:8])[CH:7]=1.Br[C:29]1[CH:30]=[N:31][CH:32]=[N:33][CH:34]=1.P([O-])([O-])([O-])=O.[K+].[K+].[K+].CN(C)CCN>O1CCOCC1.[Cu](I)I>[Cl:1][C:2]1[CH:3]=[C:4]([C:9]2([C:24]([F:25])([F:27])[F:26])[O:13][N:12]=[C:11]([C:14]3[CH:22]=[CH:21][C:17]([C:18]([NH:20][C:29]4[CH:30]=[N:31][CH:32]=[N:33][CH:34]=4)=[O:19])=[C:16]([CH3:23])[CH:15]=3)[CH2:10]2)[CH:5]=[C:6]([Cl:8])[CH:7]=1

Participants

7

Reactant 4

HCID 62657Potassium Phosphate, TribasicHCID 66053N,N-DimethylethylenediamineHCID 783445-BromopyrimidineHCID 667845734-(5-(3,5-Dichlorophenyl)-5-(trifluoromethyl)-4,5-dihydroisoxazol-3-yl)-2-methylbenzamide

Product 1

HCID 252168994-[5-(3,5-dichlorophenyl)-5-trifluoromethyl-4,5-dihydro-isoxazole-3-yl]-2-methyl-N-(5-pyrimidinyl)benzoic acid amideYield 54.8%

Reagents, catalysts & solvents 2

HCID 83717Copper iodideCatalystHCID 312751,4-DioxaneSolvent

Procedure

In a test tube for microwave reactor, a solution of 0.20 g of 4-[5-(3,5-dichlorophenyl)-5-trifluoromethyl-4,5-dihydroisoxazol-3-yl]-2-methyl benzoic acid amide synthesized in Step 1 of Synthetic Example 19, 0.10 g of 5-bromopyrimidine, 4.8 mg of copper iodide, 0.21 g of potassium phosphate and 4.4 mg of N,N-dimethyl ethylene diamine in 1 mL of 1,4-dioxane was placed, and reacted by use of a microwave focused chemical synthesizer (Discover manufactured by CEM Corporation) at 120 W and 120° C. for 20 minutes. After the completion of the reaction, insoluble material was removed through silica gel column, and the solvent was distilled off under reduced pressure. The residue was purified with silica gel column chromatography that was eluated with ethyl acetate-hexane (1:1) to obtain 0.13 g of the aimed product as white crystal.

Workup

  1. customreacted by use of a microwave
  2. customat 120 W and 120° C.
  3. customfor 20 minutes
  4. customAfter the completion of the reaction, insoluble material
  5. customwas removed through silica gel column
  6. distillationthe solvent was distilled off under reduced pressure
  7. customThe residue was purified with silica gel column chromatography that

Sources & evidence

ORD record
ord-16bc04e08d344e7c952b27a6c538094f
Source dataset
uspto-grants-2014_03
Patent number
US08673951B2

Reaction notes

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