Reacción #1552054

ord-1ce7fc86c9c448c3ba29e6f7e685bb55

Ecuación de reacción

COC(=O)c1ccc(Br)cc1
methyl-4-bromobenzoate
NN.O
hydrazine monohydrate
NNC(=O)c1ccc(Br)cc1
white solid
Rendimiento 67.0%
NNC(=O)c1ccc(Br)cc1
4-bromobenzohydrazide
Rendimiento 67.0%

Disolventes

Condiciones de reacción

Condiciones detalladas
See reaction.notes.procedure_details.

Tratamiento posterior

  1. 1
    Temperaturathe mixture was heated
  2. 2
    workup.STIRRINGstirred at 78° C. for 5 hours
  3. 3
    OtroA solid obtained
  4. 4
    Lavadowashed with water
  5. 5
    Filtracióncollected by suction filtration

Procedimiento

First, 3.0 g (13.9 mmol) of methyl-4-bromobenzoate was put in a 100-mL three-neck flask, 10 mL of ethanol was added therein, and the mixture was stirred. Thereafter, 4.0 mL of hydrazine monohydrate was added therein, and the mixture was heated and stirred at 78° C. for 5 hours. A solid obtained washed with water and collected by suction filtration; thus, 2.0 g of a white solid of objective 4-bromobenzohydrazide was obtained (yield: 67%).

Fuente

DOI: 10.6084/m9.figshare.5104873.v1Patente: US08999520B2uspto-grants-2015_04