Reacción #2317942

Ecuación de reacción

benzyl cyanoformate

diethylenetriamine

triethylamine

→

Bis[2-(benzyloxycarbonylamino)-ethyl]-amine

Disolventes

dichloromethane

dichloromethane

Condiciones de reacción

Tratamiento posterior

1. 1
   Concentraciónconcentration
2. 2
   Otroby evaporation
3. 3
   Lavadothe organic phase is washed with sodium carbonate solution
4. 4
   Secadodried with sodium sulfate
5. 5
   workup.ADDITIONThe filtrate is mixed with hexane
6. 6
   Filtraciónthe precipitate is filtered out
7. 7
   Otrodried

Procedimiento

51.5 g (500 mmol) of diethylenetriamine and 139 ml (1 mol) of triethylamine are dissolved in dichloromethane and mixed at −20° C. with 161 g of benzyl cyanoformate (Fluka) in dichloromethane and then stirred overnight at room temperature. After the reaction is completed, concentration by evaporation is performed during draw-off, the residue is taken up in diethyl ether, the organic phase is washed with sodium carbonate solution and dried with sodium sulfate. The filtrate is mixed with hexane, the precipitate is filtered out and dried.

Fuente