Hydrochloric Acid → 2-Ethyl-[1,1'-biphenyl]-3-carboxylic acid

HRID 1995133Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1995133
[CH2:1]([C:3]1[C:8]([C:9](N)=[O:10])=[CH:7][CH:6]=[CH:5][C:4]=1[C:12]1[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=1)[CH3:2].[OH-:18].[K+].Cl>OCCOCCO.C(OCC)C>[CH2:1]([C:3]1[C:8]([C:9]([OH:18])=[O:10])=[CH:7][CH:6]=[CH:5][C:4]=1[C:12]1[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=1)[CH3:2]

Komponenten

6

Edukt 3

HCID 313Hydrochloric AcidHCID 14797Potassium HydroxideHCID 202706622-Ethyl[1,1'-biphenyl]-3-carboxamide

Produkt 1

HCID 202706372-Ethyl-[1,1'-biphenyl]-3-carboxylic acidAusbeute 104,5 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 3283Diethyl EtherLösungsmittelHCID 8117Diethylene GlycolLösungsmittel

Versuchsvorschrift

A stirred solution of 2-ethyl-[1,1'-biphenyl]-3-carboxamide (2.1 g, 0.0093 mole) and potassium hydroxide (26.3 g, 0.4 mole) in 175 ml of 2-hydroxyethyl ether was heated at 163° for approximately 18 hours. The reaction mixture was cooled and diluted with 150 ml of ice water. The solution was acidified with concentrated hydrochloric acid to form a precipitate. The precipitate was isolated by filtration and dissolved in diethyl ether; the ethereal solution was dried over anhydrous magnesium sulfate and filtered. The filtrate was evaporated to give 2-ethyl-[1,1'-biphenyl]-3-carboxylic acid (2.2 g) as a solid.

Aufarbeitung

  1. temperatureThe reaction mixture was cooled
  2. customto form a precipitate
  3. customThe precipitate was isolated by filtration
  4. dry with materialthe ethereal solution was dried over anhydrous magnesium sulfate
  5. filtrationfiltered
  6. customThe filtrate was evaporated

Quellen und Nachweise

ORD-Eintrag
ord-a4a228e8b5514a63ab0163463c65cf80
Quelldatensatz
uspto-grants-1983_09
Patentnummer
US04402973

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