Reacción #543544

Ecuación de reacción

3,3′-diaminobenzidine

→

3,3′-diaminobenzidine tetracyclohexanimine

Rendimiento 90.0%

Disolventes

cyclohexanone

Condiciones de reacción

Tratamiento posterior

1. 1
   OtroIn a 200-ml flask equipped with a stirrer, a condenser
2. 2
   Temperaturaby heating
3. 3
   TemperaturaAfter cooling to room temperature
4. 4
   Otrocyclohexanone was removed under reduced pressure
5. 5
   OtroThe residue was purified by silica gel chromatography

Procedimiento

In a 200-ml flask equipped with a stirrer, a condenser and a thermometer were placed 21.4 g (100 mmol) of 3,3′-diaminobenzidine and 100 ml of cyclohexanone, followed by heating with stirring at 60° C. in a nitrogen atmosphere for 2 hours. After cooling to room temperature, cyclohexanone was removed under reduced pressure. The residue was purified by silica gel chromatography, to yield 48.1 g (90 mmol) of the target 3,3′-diaminobenzidine tetracyclohexanimine [N,N′,N″,N′″-tetracyclohexylidene-3,4,3′,4′-biphenyltetramine] in a yield of 90%.

Fuente