Dabco → N-[N-(4-methoxy-6-methylpyrimidine-2-yl)-N-methylaminocarbonyl]-2,6-dichlorobenzenesulfonamide

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Reaction Steps

To 0.8 g of 4-methoxy-6-methyl-2-methylaminopyrimidine in 25 ml of dry acetonitrile containing a few crystals of 1,4-diazabicyclo[2.2.2]octane was added 1.3 g of 2,6-dichlorobenzenesulfonyl isocyanate. The mixture was stirred at ambient temperature for 16 hours and the resultant solution was evaporated leaving a white solid. Trituration with 1-chlorobutane followed by filtration afforded 0.5 g of N-[N-(4-methoxy-6-methylpyrmidine-2-yl)-N-methylaminocarbonyl]-2,6-dichlorobenzenesulfonamide melting at 170°-171°. Infrared absorption peaks were observed at 1700 cm-1, 1600 cm-1, and 1570 cm-1.

Provenance & Evidence