Phosphoric Acid → 4-methylbenzothiazole-5-carboxylic Acid

HRID 1263404Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1263404
[CH3:1][C:2]1[C:7]2[N:8]=[CH:9][S:10][C:6]=2[CH:5]=[CH:4][C:3]=1[C:11]([O:13]C)=[O:12].P(=O)(O)(O)O>[OH-].[K+]>[CH3:1][C:2]1[C:7]2[N:8]=[CH:9][S:10][C:6]=2[CH:5]=[CH:4][C:3]=1[C:11]([OH:13])=[O:12]

Komponenten

4

Edukt 2

HCID 1004Phosphoric AcidHCID 18616057Methyl 4-Methylbenzothiazole-5-carboxylate

Produkt 1

HCID 114809704-methylbenzothiazole-5-carboxylic Acid

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 14797Potassium HydroxideLösungsmittel

Versuchsvorschrift

16.6 g of methyl 4-methylbenzothiazole-5-carboxylate (0.08 mol) were dissolved in 280 ml of 5% strength aqueous potassium hydroxide solution and heated at reflux for 2.5 h. After cooling, the mixture was acidified using phosphoric acid. The product was filtered off and subsequently dried.

Aufarbeitung

  1. temperatureheated
  2. temperatureat reflux for 2.5 h
  3. temperatureAfter cooling
  4. filtrationThe product was filtered off
  5. customsubsequently dried

Quellen und Nachweise

ORD-Eintrag
ord-9661301a5c1d4a79a1f6f2a60ed9e312
Quelldatensatz
uspto-grants-2003_04
Patentnummer
US06541423B1

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