Reacción #2383766

ord-48b74fdb733349b5a3067534f378c7de

Disolventes

Condiciones de reacción

Condiciones detalladas
See reaction.notes.procedure_details.

Tratamiento posterior

  1. 1
    Otrowas evaporated
  2. 2
    workup.WAITAfter a few hours
  3. 3
    Otrothe title compound crystallized out of the oil initially present (yield 98%)

Procedimiento

116 g (1.0 mol) of 4-chloro-3-methylpyrazole were dissolved in 115 g (1.0 mol) of phosphoric acid (85%) at room temperature. The water contained in the phosphoric acid was evaporated. After a few hours, the title compound crystallized out of the oil initially present (yield 98%).

Fuente

DOI: 10.6084/m9.figshare.5104873.v1Patente: US06488734B1uspto-grants-2002_12