Herbicides

Details Herbicides Herbicides

C - Chemistry, Metallurgy

07

D

C07D 513/04 (2006.01) A01N 43/90 (2006.01)

Patent

CA 2076240

PH/5-18761/A Abstract Novel herbicides: Benzothiazolone derivatives of formula I Image (I) wherein Y is oxygen or sulfur; R1 is hydrogen or fluorine; and R2 is hydrogen, C1-C6alkyl, C2-C4alkenyl, or C2-C6alkynyl; halo-substituted C1-C6alkyl, C2-C4alkenyl, or C3-C6alkynyl; C1-C4alkoxy-C1-C4alkyl, C1-C4alkoxy-C1-C2alkoxy- C1-C2alkyl, 1-phenylpropen-3-yl, cyano- or C3-C6cycloalkyl-substituted C1-C6alkyl; carboxy-C1-C4alkyl, C1-C6alkoxycarbonyl-C1-C4alkyl, halo-C1-C6alkoxycarbonyl-C1-C4- alkyl, C1-C4alkoxy-C1-C2alkoxycarbonyl-C1-C4alkyl, C1-C6alkoxycarbonyl-C1-C2alkoxy- carbonyl-C1-C4alkyl, C3-C6cycloalkyl-C1-C2alkoxycarbonyl-C1-C4alkyl, C1-C5alkyl-aminocarbonyl-C1-C4alkyl, di-C1-C5alkylaminocarbonyl-C1-C4alkyl, C3-C6cycloalkyl, C1-C4alkylthio-C1-C4alkyl, benzyl, or halo-substituted benzyl, C1-C4alkylsulfonyl, C3-C6- alkenyloxy-C1-C4alkyl, C1-C8alkylcarbonyl, Image Image , Image , C1-C4alkylthiocarbonyl-C1-C4alkyl, or the group Image R3 is hydrogen or C1-C4alkyl; and R4 is hydrogen or C1-C4alkyl; have good pre- and post-emergence selective herbicidal properties.

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