Réaction #1552054

ord-1ce7fc86c9c448c3ba29e6f7e685bb55

Équation de réaction

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

Solvants

Conditions de réaction

Conditions détaillées
See reaction.notes.procedure_details.

Traitement

  1. 1
    Températurethe mixture was heated
  2. 2
    workup.STIRRINGstirred at 78° C. for 5 hours
  3. 3
    AutreA solid obtained
  4. 4
    Lavagewashed with water
  5. 5
    Filtrationcollected by suction filtration

Mode opératoire

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%).

Source

DOI: 10.6084/m9.figshare.5104873.v1Brevet: US08999520B2uspto-grants-2015_04