NOVEL 1,3-OXAZIN-4-ONE DERIVATIVES, HERBICIDES CONTAINING THE SAME, AND INTERMEDIATES FOR PREPARING THE SAME

摘要

Novel 1,3-oxazin-4-one derivatives of formula wherein R1 to R5 are hydrocarbonyl radicals which are optionally substituted and herbicides containing the same as active ingredients. The derivatives can be produced by a reaction of substituted 1,3-dioxin-4-one derivatives and N-methylene-alkylamine.