Oxadithiadiazapentalenes, their preparation, fungicidal compositions containing them and the control of fungi using them

摘要

Herbicidal and fungicidal oxadithiadiazapentalenes of the formulawherein X is halo and R is alkyl, haloalkyl, halovinyl, cycloalkyl, thiocyanatoalkyl, aryl, aryloxy, arylthiomethyl, aryloxymethyl, benzylthiomethyl, benzyloxymethyl or heterocyclic are prepared by reacting a sulfur halide and an N-cyanomethyl-carboxamide of the formulawherein R is as defined above.