Potassium Carbonate → 2-(4-Chlorobenzylthio)-ethyl 2-[4-(4-trifluoromethylphenoxy)-phenoxy]-propionate

HRID 615544Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 615544
[F:1][C:2]([F:18])([F:17])[C:3]1[CH:16]=[CH:15][C:6]([O:7][C:8]2[CH:13]=[CH:12][C:11]([OH:14])=[CH:10][CH:9]=2)=[CH:5][CH:4]=1.C(=O)([O-])[O-].[K+].[K+].Br[CH:26]([CH3:41])[C:27]([O:29][CH2:30][CH2:31][S:32][CH2:33][C:34]1[CH:39]=[CH:38][C:37]([Cl:40])=[CH:36][CH:35]=1)=[O:28]>C(#N)C>[F:1][C:2]([F:17])([F:18])[C:3]1[CH:16]=[CH:15][C:6]([O:7][C:8]2[CH:9]=[CH:10][C:11]([O:14][CH:26]([CH3:41])[C:27]([O:29][CH2:30][CH2:31][S:32][CH2:33][C:34]3[CH:35]=[CH:36][C:37]([Cl:40])=[CH:38][CH:39]=3)=[O:28])=[CH:12][CH:13]=2)=[CH:5][CH:4]=1

Komponenten

5

Edukt 3

HCID 11430Potassium CarbonateHCID 170230p-(4-(Trifluoromethyl)phenoxy)phenolHCID 133096322-{[(4-Chlorophenyl)methyl]sulfanyl}ethyl 2-bromopropanoate

Produkt 1

HCID 133096052-(4-Chlorobenzylthio)-ethyl 2-[4-(4-trifluoromethylphenoxy)-phenoxy]-propionateAusbeute 90,9 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6342AcetonitrileLösungsmittel

Versuchsvorschrift

A mixture consisting of 25.4 g of 4-(4-trifluoromethylphenoxy)phenol, 14.5 g of anhydrous potassium carbonate, 33.8 g of 2-(4-chlorobenzylthio)ethyl 2-bromopropionate and 150 ml of dry acetonitrile was refluxed for 3 hours with vigorous stirring. After cooling the reaction mixture to room temperature, the acetonitrile was removed under reduced pressure. Then, 150 ml of toluene were added to the residue and the resulting mixture was washed successively with 1% strength by weight aqueous sodium hydroxide solution and water, followed by dehydration. Upon distilling off the toluene under reduced pressure, there were obtained 46.4 g of 2-(4-chlorobenzylthio)-ethyl 2-[4-(4-trifluoromethylphenoxy)-phenoxy]-propionate in the form of a colorless oil. nD20 =1.5555.

Aufarbeitung

  1. temperaturewas refluxed for 3 hours with vigorous stirring
  2. customthe acetonitrile was removed under reduced pressure
  3. additionThen, 150 ml of toluene were added to the residue
  4. washthe resulting mixture was washed successively with 1% strength by weight aqueous sodium hydroxide solution and water
  5. distillationUpon distilling off the toluene under reduced pressure

Quellen und Nachweise

ORD-Eintrag
ord-47c941f55a7b4a46a403978b89ccb1da
Quelldatensatz
uspto-grants-1985_02
Patentnummer
US04500346

Notizen zur Reaktion

Wird geladen…