反应详情

To 15.6 g of 2-amino-4,6-dimethoxy-1,3,5-triazine in 300 ml of dry methylene chloride containing 0.1 g 1,4-diazabicyclo[2,2,2]octane was added 21 g 2-chlorobenzenesulfonyl isocyanate with stirring. The mixture was stirred for 16 hours and the resultant solid was removed by filtration. After washing the solid with 1-chlorobutane, the resulting product, N-[(4,6-dimethoxy-1,3,5-triazin-2-yl)-aminocarbonyl]-2-chlorobenzenesulfonamide melted at 188°-189° C. Infrared absorption analysis showed absorption peaks at 1740 cm-1, 1630 cm-1 and 1595 cm-1 which are typical for this type of compound.

1. stirringThe mixture was stirred for 16 hours
2. customthe resultant solid was removed by filtration
3. washAfter washing the solid with 1-chlorobutane
4. customabsorption analysis
5. customabsorption peaks at 1740 cm-1, 1630 cm-1 and 1595 cm-1 which