Reacción #1350586

ord-9661301a5c1d4a79a1f6f2a60ed9e312

Ecuación de reacción

COC(=O)c1ccc2scnc2c1C
methyl 4-methylbenzothiazole-5-carboxylate
O=P(O)(O)O
phosphoric acid
Cc1c(C(=O)O)ccc2scnc12
4-Methylbenzothiazole-5-carboxylic Acid

Condiciones de reacción

Condiciones detalladas
See reaction.notes.procedure_details.

Tratamiento posterior

  1. 1
    Temperaturaheated
  2. 2
    Temperaturaat reflux for 2.5 h
  3. 3
    TemperaturaAfter cooling
  4. 4
    FiltraciónThe product was filtered off
  5. 5
    Otrosubsequently dried

Procedimiento

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.

Fuente

DOI: 10.6084/m9.figshare.5104873.v1Patente: US06541423B1uspto-grants-2003_04