Reacción #569493

ord-1edddb6314214c98861f16752f65e163

Condiciones de reacción

Condiciones detalladas
See reaction.notes.procedure_details.

Tratamiento posterior

  1. 1
    Otrowas changed to 500 ml flask
  2. 2
    Temperaturathat the reaction temperature was maintained at 15°-25° C.

Procedimiento

According to the sa manner as in Example 3, except that the flask was changed to 500 ml flask, 70 g of water, 280 g of toluene and 35 g of 4-chloroanthranilic acid were in place of 53 g of water and 2.8 g of laurylpyridinium chloride, and that the reaction temperature was maintained at 15°-25° C., 41.0 g of 7-chloroisatoic anhydride (purity: 94%) was obtained.

Fuente

DOI: 10.6084/m9.figshare.5104873.v1Patente: US05795984uspto-grants-1998_08