Potassium Carbonate → 4'-(12-Bromododecyloxy)biphenyl-4-carboxylic acid ethyl ester

HRID 2082124Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 2082124
[CH2:1]([O:3][C:4]([C:6]1[CH:11]=[CH:10][C:9]([C:12]2[CH:17]=[CH:16][C:15]([OH:18])=[CH:14][CH:13]=2)=[CH:8][CH:7]=1)=[O:5])[CH3:2].[Br:19][CH2:20][CH2:21][CH2:22][CH2:23][CH2:24][CH2:25][CH2:26][CH2:27][CH2:28][CH2:29][CH2:30][CH2:31]Br.C(=O)([O-])[O-].[K+].[K+]>CC(C)=O>[CH2:1]([O:3][C:4]([C:6]1[CH:11]=[CH:10][C:9]([C:12]2[CH:13]=[CH:14][C:15]([O:18][CH2:31][CH2:30][CH2:29][CH2:28][CH2:27][CH2:26][CH2:25][CH2:24][CH2:23][CH2:22][CH2:21][CH2:20][Br:19])=[CH:16][CH:17]=2)=[CH:8][CH:7]=1)=[O:5])[CH3:2]

Komponenten

5

Edukt 3

HCID 11430Potassium CarbonateHCID 187661,12-DibromododecaneHCID 4049156Ethyl 4'-hydroxy-4-biphenylcarboxylate

Produkt 1

HCID 539084014'-(12-Bromododecyloxy)biphenyl-4-carboxylic acid ethyl esterAusbeute 67 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 180AcetoneLösungsmittel

Versuchsvorschrift

An acetone solution of 90 m moles (21.8 g) of the above 4'-hydroxybiphenyl-4-carboxylic acid ethyl ester, 0.15 mole (49.2 g) of 1,12-dibromododecane, and 0.4 mole (55.3 g) of potassium carbonate was refluxed for four hours. The reaction solution was filtered. The filtrate was concentrated, and then purified by column chromatography, to obtain 29.5 g of 4'-(12-bromododecyloxy)biphenyl-4-carboxylic acid ethyl ester [m.p. 88.6°-90.5° C⟧ (yield: 67%)

Aufarbeitung

  1. filtrationThe reaction solution was filtered
  2. concentrationThe filtrate was concentrated
  3. custompurified by column chromatography

Quellen und Nachweise

ORD-Eintrag
ord-619e5e4a93a647e99d5e2b9046053bdf
Quelldatensatz
uspto-grants-1993_02
Patentnummer
US05187248

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