Dabco → N,N-diethyl-N'[(4-methoxy-6-methylpyrimidin-2-yl)aminocarbonyl]-1,2-benzenedisulfonamide

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Reaction Steps

A mixture of 0.8 g of 2-amino-4-methoxy-6-methylpyrimidine, 2.8 g of the crude sulfonyl isocyanate from Example 4 and a few crystals of DABCO in 25 ml of acetonitrile was stirred at room temperature for 16 hours. A small amount of unreacted aminopyrimidine was filtered off and the filtrate concentrated in-vacuo to give a hard glass. Crystallization from methanol gave 0.9 g of N,N-diethyl-N'[(4-methoxy-6-methylpyrimidin-2-yl)aminocarbonyl]-1,2-benzenedisulfonamide as a white solid, m.p. 170°-2°.

Provenance & Evidence