Jan-Feh 1993 Synthesis of l,2,4-Triazolo[l,5-a]pyrimidine-2-sulfonamides Ravi B. Shankar* and R. Garth Pews Central Research and Development, The Dow Chemical Company, Midland, MI 48674 Received May 28, 1992 The l,2,4-triazolo[l,5-a]pyrimidine-2-sulfonamides are a new class of highly active herbicides. A novel cyclization method for the synthesis of these compounds is discussed. 169 /. Heterocyclic Chem., 30, 169 (1993). The chemistry of l,2,4-triazolo[l,5- ...
