Triethylamine → HCID 90404328, compound

HRID 924243Notes

Reaction equation

HRID 924243 reaction equation
Br[C:2]1[CH:7]=[CH:6][C:5]([C:8]2[N:12]=[CH:11][N:10]([C:13]3[CH:18]=[CH:17][C:16]([C:19]([F:22])([F:21])[F:20])=[CH:15][CH:14]=3)[N:9]=2)=[CH:4][CH:3]=1.C(N(CC)CC)C.[CH2:30]([OH:34])[CH2:31][C:32]#[CH:33]>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.[Cu]I.C(OCC)(=O)C.O>[F:20][C:19]([F:22])([F:21])[C:16]1[CH:17]=[CH:18][C:13]([N:10]2[CH:11]=[N:12][C:8]([C:5]3[CH:6]=[CH:7][C:2]([C:33]#[C:32][CH2:31][CH2:30][OH:34])=[CH:3][CH:4]=3)=[N:9]2)=[CH:14][CH:15]=1

Participants

7

Reactant 3

HCID 8471TriethylamineHCID 135663-Butyn-1-OLHCID 90404802HCID 90404802, compound

Product 1

HCID 90404328HCID 90404328, compound

Reagents, catalysts & solvents 3

HCID 24350Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)CatalystHCID 178418476HCID 178418476, compoundCatalystHCID 22728543Water ethylacetateSolvent

Conditions

Temperature
60 °C

Procedure

To 3-(4-bromophenyl)-1-(4-(trifluoromethyl)phenyl)-1H-1,2,4-triazole (C53) (0.50 g, 1.4 mmol) in a 25 mL vial equipped with a stir bar and cap with septa was added bis(triphenylphosphine)palladium(II) chloride (0.019 g, 0.027 mmol), copper(I) iodide (0.0026 g, 0.014 mmol) and triethylamine (8.5 mL) followed by but-3-yn-1-ol (0.12 mL, 1.6 mmol). The reaction was heated to 60° C. overnight. The reaction was stopped and cooled to room temperature. The reaction mixture was treated with 50% ethyl acetate/water. The aqueous layer was extracted with ethyl acetate. The combined organic layers were washed with water. The organic layer was dried over sodium sulfate, filtered, and concentrated. Purification by flash column chromatography using 0-50% ethyl acetate/B, where B=1:1 dichloromethane/hexanes, as eluent provided a solid which was dried overnight at 50° C. in vacuo to afford the title compound as a tan solid. It was calculated based on 1H NMR to be mixed with the starting butynol (8%), (0.38 g, 71%): 1H NMR (400 MHz, CDCl3) δ 8.66 (s, 1H), 8.20-8.11 (m, 2H), 7.94-7.88 (m, 2H), 7.83-7.76 (m, 2H), 7.56-7.50 (m, 2H), 3.85 (q, J=6.3 Hz, 2H), 2.74 (t, J=6.2 Hz, 2H), 1.83 (t, J=6.3 Hz, 1H); 19F NMR (376 MHz, CDCl3) δ −62.51; ESIMS m/z 358 ([M+H]+).

Workup

  1. customcap with septa
  2. temperaturecooled to room temperature
  3. extractionThe aqueous layer was extracted with ethyl acetate
  4. washThe combined organic layers were washed with water
  5. dry with materialThe organic layer was dried over sodium sulfate
  6. filtrationfiltered
  7. concentrationconcentrated
  8. customPurification by flash column chromatography
  9. customas eluent provided a solid which
  10. customwas dried overnight at 50° C. in vacuo

Sources & evidence

ORD record
ord-48cdcf279e9343d291e3f105ebf9148f
Source dataset
uspto-grants-2016_03
Patent number
US09278964B2

Reaction notes

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