Herbicidally active substituted 6-halogeno-tert.-butyl-1,2,4-triazin-5-ones

摘要

A substituted 6-halogeno-tert.-butyl-1,2,4-triazin-5-one of the formula <IMAGE> in which R1 is an amino or methyl group, R2 is an alkylmercapto, alkylamino or dialkylamino group, X is a halogen atom, and Y and Z each independently is a hydrogen or halogen atom, which possesses selective herbicidal activity. A synthesis involving the novel intermediates <IMAGE> in which X, Y and Z have the above-mentioned meaning and Q is CN, CONH2 or COOH, is also shown.