DE1670042

1,226,797. 2,4-Amino- and -alkylamino - 6- chloro-s-triazines. AGRIPAT S.A. 19 March, 1968 [20 March, 1967], No. 13160/68. Heading C2C. Compounds of the general formula wherein R 1 and R 2 represent C 1-4 alkyl radicals and R 3 and R 4 represent hydrogen or C 1-4 alkyl radicals, are produced from cyanuric chloride, an amine R 1 R 3 NH and an amine R 2 R 4 NH by adding sequentially to a solution of cyanuric chloride in an inert, substantially anhydrous, organic solvent, per mole of cyanuric chloride (a) about 1 mole of an amine R 1 R 3 NH, (b) about 1 mole of anhydrous ammonia, (c) about 1 mole of an amine R 2 R 4 NH, and (d) about 1 mole of anhydrous ammonia, and thereafter recovering the product from the reaction mixture. In a modification of the process, products wherein the moieties R 1 R 3 N- and R 2 R 4 N- are identical are obtained by omitting steps (c) and (d) and employing about 2 moles of the amine in step (a) and about 2 moles of ammonia in step (b). In the first process, minor amounts of the corresponding symmetrical 2,4-bis-(alkylamino) - 6 - chloro - s - triazines are obtained, together with some of the corresponding 2- amino - 4 - alkylamino - 6 - chloro - s - triazines. In a comparative Example (4), ammonia is added to a trichloroethylene solution of cyanuric chloride, and isopropylamine is added at the reaction mixture to give 2-amino-4-isopropylamino - 6 - chloro - a - triazine.