5-Alkoxy-1,2,4-triazolo[1,5-c]pyrimidine-2-sulfonamides are prepared from 5-alkoxy-1,2,4-triazolo[1,5-c]pyrimidine-2-sulfonyl halides by condensation with ortho-substituted N-trialkylsilylanilines and by other methods. N-(2,6-dichloro-3-methylphenyl)-8-fluoro-5-methoxy-1,2,4-triazolo[1,5-c]py rimidine-2-sulfonamide is typical. The compounds are general and selective pre- and postemergence herbicides.
5-烷氧基-
1,2,4-三唑并[1,5-c]
嘧啶-2-磺酰胺是通过与邻位取代的N-三烷基
硅基
苯胺和其他方法反应制备的。N-(2,6-二
氯-3-甲基苯基)-8-
氟-5-甲氧基-
1,2,4-三唑并[1,5-c]
嘧啶-2-磺酰胺是典型的化合物。这些化合物是一般和选择性的前后
除草剂。