Dicyandiamide → 1,3,5-Triazine-2,4-diamine, 6,6',6''-(1,3,6-hexanetriyl)tris-

Participants

Reaction Conditions

Reaction Steps

161 g (1 mole) of 1,3,6-tricyanohexane and 277.2 g (3.3 moles) of dicyandiamide were added to 750 g of dimethyl sulfoxide as the reaction medium, followed by further addition of 68 g (1 mole) of sodium methylate as the catalyst. The mixture was stirred under heating at 130° C for 3 hours in a nitrogen atmosphere. After completion of the reaction the reaction mixture was cooled to 25° C to precipitate the reaction product, followed by separating the crude reaction product by filtration. Purification was conducted by dissolving the crude product in excess amount of dimethyl sulfoxide at 135° C and then precipitating the product by cooling. After repeating this procedure 5 times, 292 g of 1,3,6-tris(4,6-diamino-1,3,5-triazine-2-yl)hexane as a white powder were obtained.

Provenance & Evidence