Triazine derivatives

The invention comprises 4,6-diamino -1,2-dihydro -2,2-dimethyl -1-hydroxy 1,3,5-triacine per se and salts thereof and its synthesis by subjecting the compound of formula II or its hydrochloride or hydro bromide. wherein R is an arylkyl group of formulae X C6H4CH2- or X C10H6CH2- X being hydrogen or halogen, excluding fluoride, to catalytic hydrogenolysis to replace the group R by hydrogen. Palladium is the preferred catalyst, and the use of platinum is also exemplified. The salt forming acids include both inorganic and organic ones. The starting material is prepared in the manner of Specification 831,252. Specification 945,160 also is referred to.