Potassium Fluoride → HCID 67980976, compound

HRID 2407022Notes

Reaction equation

HRID 2407022 reaction equation
Br[C:2]1[CH:9]=[CH:8][C:5]([C:6]#[N:7])=[CH:4][C:3]=1[O:10][CH3:11].[F:12][C:13]([F:24])([F:23])[C:14]1[CH:19]=[CH:18][C:17](B(O)O)=[CH:16][CH:15]=1.[F-].[K+]>C1(C)C=CC=CC=1.O.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[CH3:11][O:10][C:3]1[CH:4]=[C:5]([C:6]#[N:7])[CH:8]=[CH:9][C:2]=1[C:17]1[CH:18]=[CH:19][C:14]([C:13]([F:24])([F:23])[F:12])=[CH:15][CH:16]=1

Participants

7

Reactant 3

HCID 522689Potassium FluorideHCID 27343894-(Trifluoromethyl)phenylboronic acidHCID 225911814-Bromo-3-methoxybenzonitrile

Product 1

HCID 67980976HCID 67980976, compoundYield 94.8%

Reagents, catalysts & solvents 3

HCID 178418397HCID 178418397, compoundCatalystHCID 962WaterSolventHCID 1140TolueneSolvent

Procedure

A mixture of 4-bromo-3-methoxybenzonitrile (500 mg, 2.36 mmol), 4-(trifluoromethyl)phenyl boronic acid (671.9 mg, 3.54 mmol) and potassium fluoride (411 mg, 7.08 mmol) in toluene (11 mL) and water (3 mL) was purged with nitrogen. Pd(PPh3)4 (272.7 mg, 0.236 mmol) was added. The resulting mixture was heated at reflux overnight. The reaction mixture was washed with water (200 ml) and extracted with ethyl acetate (150 mL*4). The combined organic extracts were dried over Na2SO4, filtered, and concentrated under reduced pressure. The residue was purified by silica gel chromatography to give 2-methoxy-4′-(trifluoromethyl)biphenyl-4-carbonitrile (620 mg) as a colorless solid. 1HNMR (400 MHz, CDCl3) δ 7.68 (d, J=8.4 Hz, 2H), 7.60 (d, J=8.4 Hz, 2H), 7.36-7.40 (m, 2H), 7.22 (s, 1H), 3.87 (s, 3H).

Workup

  1. customwas purged with nitrogen
  2. temperatureThe resulting mixture was heated
  3. temperatureat reflux overnight
  4. washThe reaction mixture was washed with water (200 ml)
  5. extractionextracted with ethyl acetate (150 mL*4)
  6. dry with materialThe combined organic extracts were dried over Na2SO4
  7. filtrationfiltered
  8. concentrationconcentrated under reduced pressure
  9. customThe residue was purified by silica gel chromatography

Sources & evidence

ORD record
ord-871a11de3c03471493500119bd26fe4b
Source dataset
uspto-grants-2014_08
Patent number
US08809342B2

Reaction notes

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