Hydrochloric Acid → 3,5-Dinitro-4-phenylbenzoic acid

HRID 1605541Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1605541
[N+:1]([C:4]1[CH:5]=[C:6]([CH:11]=[C:12]([N+:20]([O-:22])=[O:21])[C:13]=1[C:14]1[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=1)[C:7]([O:9]C)=[O:8])([O-:3])=[O:2].Cl>COCCO.[OH-].[Na+].O>[N+:1]([C:4]1[CH:5]=[C:6]([CH:11]=[C:12]([N+:20]([O-:22])=[O:21])[C:13]=1[C:14]1[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=1)[C:7]([OH:9])=[O:8])([O-:3])=[O:2]

Komponenten

6

Edukt 2

HCID 313Hydrochloric AcidHCID 21546857Methyl 3,5-dinitro-4-phenylbenzoate

Produkt 1

HCID 124087663,5-Dinitro-4-phenylbenzoic acid

Reagenzien, Katalysatoren, Lösungsmittel 3

HCID 962WaterLösungsmittelHCID 80192-MethoxyethanolLösungsmittelHCID 14798Sodium HydroxideLösungsmittel

Versuchsvorschrift

To a stirred suspension of methyl 3,5-dinitro-4-phenylbenzoate (145 g) in 2-methoxyethanol (1.5 l), 2 N sodium hydroxide (300 ml) is added dropwise during about 30 minutes. After additional stirring for about 15 minutes, the resulting solution is acidified by the dropwise addition of 4 N hydrochloric acid (250 ml), and the mixture is thereafter diluted with water (about 3 l). After cooling, the resulting precipitate is collected by filtration, washed with water and dried. After recrystallization from aqueous ethanol, 3,5-dinitro-4-phenylbenzoic acid is obtained with a melting point of 219°-221° C.

Aufarbeitung

  1. additionis added dropwise during about 30 minutes
  2. temperatureAfter cooling
  3. filtrationthe resulting precipitate is collected by filtration
  4. washwashed with water
  5. customdried
  6. customAfter recrystallization from aqueous ethanol

Quellen und Nachweise

ORD-Eintrag
ord-4c8168bf01524a988dc6f94f110ccbc7
Quelldatensatz
uspto-grants-1976_04
Patentnummer
US03950380

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