Sulfonamides derived from substituted 2-amino-1,2,4-triazolo[1,5-a]pyrimidines are prepared by reacting a desired sulfonamide with dimethyl N-cyanodithioiminocarbonate in the presence of a base followed by reaction with an excess of hydrazine and then a 1,3-dicarbonyl compound. The resulting products have a variety of herbicidal uses.
源自取代的2-
氨基-
1,2,4-三唑[1,5-a]
嘧啶的磺
胺类化合物是通过在碱存在下将所需的
磺胺与二甲基N-
氰基二
硫代甲酰胺反应,然后在过量的
肼存在下与1,3-二羰基化合物反应制备而成。所得的产物具有各种除草用途。