Herbicidally active 1,3,4-thiadiazole derivatives

Details Herbicidally active 1,3,4-thiadiazole derivatives Herbicidally active 1,3,4-thiadiazole derivatives

C - Chemistry, Metallurgy

07

D

71/8.2, 260/308.

C07D 285/12 (2006.01) A01N 47/36 (2006.01) C07D 285/135 (2006.01)

Patent

CA 1148957

ABSTRACT OF THE INVENTION Novel thiadiazole compounds have the general structure: Image wherein R1 is hydrogen or a substituted or unsubstituted lower acyclic hydrocarbon radical, the substituents being selected from the class consisting of halo, hydroxy, cyano, and lower alkoxy, R2 is R1 or a lower alkoxy radical, except that R1 and R2 cannot both be hydrogen, R3 is hydrogen or a lower acyclic hydrocarbon radical, R4 is hydrogen, a lower acyclic hydrocarbon radical, or a lower cycloalkyl radical, and, R5 is hydrogen, a lower cycloalkyl radical, a lower alkoxy radical or a substituted or un- substituted lower acyclic hydrocarbon radical, the substituents being selected from the class consisting of halo, hydroxy, cyano. or lower alkoxy, except that R4 and R5 cannot both be hydrogen or a lower cycloalkyl radical, and metal or ammonium or substituted ammonium salts thereof, are useful for their herbicidal activity against a broad spectrum of undesiren weeds and plants.

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