Dimethylformamide → HCID 178474488, compound

HRID 2205818Notes

Reaction equation

HRID 2205818 reaction equation
[F:1][C:2]1[CH:3]=[C:4]([C:8]2[C:12](I)=[C:11]([NH:14][C:15](=[O:17])[CH3:16])[NH:10][N:9]=2)[CH:5]=[CH:6][CH:7]=1.[C:18]1([C:24]#[CH:25])[CH:23]=[CH:22][CH:21]=[CH:20][CH:19]=1.C(N(CC)CC)C.CN(C=O)C>C(OCC)(=O)C.O.[Cu](I)I.Cl[Pd](Cl)([P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1)[P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1>[F:1][C:2]1[CH:3]=[C:4]([C:8]2[C:12]([C:25]#[C:24][C:18]3[CH:23]=[CH:22][CH:21]=[CH:20][CH:19]=3)=[C:11]([NH:14][C:15](=[O:17])[CH3:16])[NH:10][N:9]=2)[CH:5]=[CH:6][CH:7]=1

Participants

9

Reactant 4

HCID 6228DimethylformamideHCID 8471TriethylamineHCID 10821PhenylacetyleneHCID 178474489HCID 178474489, compound

Product 1

HCID 178474488HCID 178474488, compoundYield 28.5%

Reagents, catalysts & solvents 4

HCID 83717Copper iodideCatalystHCID 178418476HCID 178418476, compoundCatalystHCID 962WaterSolventHCID 8857Ethyl AcetateSolvent

Conditions

Temperature
90 °C

Procedure

Nitrogen was bubbled through a mixture of N-[3-(3-fluorophenyl)-4-iodo-1H-pyrazol-5-yl]acetamide (10.8 g, 44 mmol), phenyl acetylene (12.5 g, 123 mmol), triethylamine (100 mL) and DMF (40 mL) for 15 min. Copper iodide (840 mg, 4.42 mmol) and bis(triphenylphosphine)palladium(II) dichloride (1.5 g, 2.1 mmol) were added and the reaction mixture was stirred at 90° C. under nitrogen for 6 h. The reaction mixture was cooled to room temperature, diluted with ethyl acetate and water. The organic phase was washed with water and brine, dried (MgSO4), filtered and concentrated in vacuo. The residue was purified by column chromatography (silica gel, isohexane/ethyl acetate 1:0 to 0:1) yielding the title compound as a solid (4 g).

Workup

  1. temperatureThe reaction mixture was cooled to room temperature
  2. washThe organic phase was washed with water and brine
  3. dry with materialdried (MgSO4)
  4. filtrationfiltered
  5. concentrationconcentrated in vacuo
  6. customThe residue was purified by column chromatography (silica gel, isohexane/ethyl acetate 1:0 to 0:1)

Sources & evidence

ORD record
ord-69e722a36ae0477d8194ecba5b512faf
Source dataset
uspto-grants-2016_06
Patent number
US09371332B2

Reaction notes

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