2-Amino-4,6-dimethoxy-1,3,5-triazine → N-[(4,6-Dimethoxy-1,3,5-triazin-2-yl)aminocarbonyl]-4-methyl-3-thiophenesulfonamide

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Reaction Steps

A solution of 2 g of 4-methyl-3-thiophenesulfonyl isocyanate was added to a suspension of 1.5 g of 2-amino-4,6-dimethoxy-1,3,5-triazine in 20 ml of tetrahydrofuran and the resulting mixture stirred for 16 hours at ambient temperature. The precipitate thus obtained was filtered off and recrystallized to yield 1.5 g of the desired product, m.p. 154°-156°.

Provenance & Evidence