Potassium Carbonate → 3-(2-(4-((3,4-Dichlorobenzyl)oxy)phenyl)-2-oxoethoxy)-4-fluorobenzonitrile

HRID 708567Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 708567
[F:1][C:2]1[CH:9]=[CH:8][C:5]([C:6]#[N:7])=[CH:4][C:3]=1[OH:10].Br[CH2:12][C:13]([C:15]1[CH:20]=[CH:19][C:18]([O:21][CH2:22][C:23]2[CH:28]=[CH:27][C:26]([Cl:29])=[C:25]([Cl:30])[CH:24]=2)=[CH:17][CH:16]=1)=[O:14].C(=O)([O-])[O-].[K+].[K+]>CC(C)=O>[Cl:30][C:25]1[CH:24]=[C:23]([CH:28]=[CH:27][C:26]=1[Cl:29])[CH2:22][O:21][C:18]1[CH:17]=[CH:16][C:15]([C:13](=[O:14])[CH2:12][O:10][C:3]2[CH:4]=[C:5]([CH:8]=[CH:9][C:2]=2[F:1])[C:6]#[N:7])=[CH:20][CH:19]=1

Komponenten

5

Edukt 3

HCID 11430Potassium CarbonateHCID 207769814-Fluoro-3-hydroxybenzonitrileHCID 583275742-Bromo-1-[4-(3,4-dichloro-benzyloxy)-phenyl]-ethanone

Produkt 1

HCID 583271623-(2-(4-((3,4-Dichlorobenzyl)oxy)phenyl)-2-oxoethoxy)-4-fluorobenzonitrileAusbeute 102 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 180AcetoneLösungsmittel

Versuchsvorschrift

4-Fluoro-3-hydroxy-benzonitrile (15 g), 2-bromo-1-[4-(3,4-dichloro-benzyloxy)-phenyl]-ethanone (45 g), and potassium carbonate 45 g) were suspended together in 630 mL acetone with stirring. The mixture continued to stir for 18 hours, then was concentrated to dryness. The solid residue was taken up in 500 mL diethyl ether and stirred 1.5 h, then 1 L water was added and stirred vigorously an additional 3 hours. The solid product was collected by filtration and washed with 200 mL diethyl ether three times. It was then dissolved in THF, filtered to remove any remaining inorganic salt, and evaporated again to dryness. After drying under vacuum 18 h, 48 g of desired product was obtained (quantitative). 1H NMR (400 MHz, DMSO-d6): 7.97 (d, 2H), 7.66 (d, 1H), 7.45 (m, 2H), 7.46 (m, 3H), 7.16 (d, 2H), 5.72 (s, 2H), 5.25 (s, 2H).

Aufarbeitung

  1. stirringto stir for 18 hours
  2. concentrationwas concentrated to dryness
  3. stirringstirred 1.5 h
  4. addition1 L water was added
  5. stirringstirred vigorously an additional 3 hours
  6. filtrationThe solid product was collected by filtration
  7. washwashed with 200 mL diethyl ether three times
  8. dissolutionIt was then dissolved in THF
  9. filtrationfiltered
  10. customto remove any remaining inorganic salt
  11. customevaporated again to dryness
  12. customAfter drying under vacuum 18 h

Quellen und Nachweise

ORD-Eintrag
ord-b20fcf7748924b098ed0d5560ef4fae4
Quelldatensatz
uspto-grants-2015_11
Patentnummer
US09175003B2

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