Réaction #56389

Équation de réaction

2-cyclopropylamino-4-chloro-6-amino-s-triazine

ammonia

→

2-cyclopropylamino-4,6-diamino-s-triazine

Rendement 55.8%

Solvants

dioxane

Conditions de réaction

Traitement

1. 1
   TempératureAfter cooling to room temperature the solvent
2. 2
   Autreis removed by water jet vacuum distillation
3. 3
   workup.ADDITION300 ml of water are added to the residue
4. 4
   Filtrationthe residue product is filtered off
5. 5
   Autrerecrystallised

Mode opératoire

A mixture of 100 g of 2-cyclopropylamino-4-chloro-6-amino-s-triazine, 51 g of anhydrous ammonia and 500 ml of dioxane is heated for 24 hours in an autoclave at 140° C. After cooling to room temperature the solvent is removed by water jet vacuum distillation. 300 ml of water are added to the residue. After stirring, the residue product is filtered off and recrystallised from boiling ethanol. 50 g of 2-cyclopropylamino-4,6-diamino-s-triazine are obtained. Melting point: 219°-222° C.

Source