Herbicidally-active thiadiazole derivatives

Details Herbicidally-active thiadiazole derivatives Herbicidally-active thiadiazole derivatives

C - Chemistry, Metallurgy

07

D

71/8.2, 260/308.

C07D 285/12 (2006.01) A01N 47/28 (2006.01) A01N 47/36 (2006.01) C07D 285/135 (2006.01)

Patent

CA 1189513

ABSTRACT Novel herbicidal thiadiazoles of the formula: Image (wherein: R1 represents a group Ra, -S(O)nRa or -SO2NRaRb, where Ra and Rb, which may be the same or different, each represent hydrogen, cycloalkyl of 3 to 7 carbon atoms, alkenyl or alkynyl of 2 to 6 carbon atoms, phenyl, phenylalkyl of 7 to 10 carbon atoms, or alkyl of 1 to 10 carbon atoms, any phenyl or alkyl group present being optionally substituted by one or more halogen atoms, cyano groups, alkoxy or alkylthio groups of 1 to 4 carbon atoms, or phenoxy groups, or Ra and Rb together form an alkylene chain of 2 to 6 carbon atoms, and n represents 0, 1 or 2; X represents oxygen or sulphur; Z represents a group -NRcRd: and Y represents a group - NReRf or a group -N=CReRf; where Rc, Rd, Re and Rf, which may be the same or different, each represent a group Abstract as defined for Ra, or a carboxy, alkoxy, alkoxycarbonyl, acyl, acyloxy, alkylsulphonyl, cyano, formyl, amido, or heterocyclyl group, any alkyl moiety of which is of 1 to 4 carbon atoms): and the acid addition salts thereof, compositions containing them and processes for their preparation.

420786

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