C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
71/7.4, 260/248.
C07D 253/06 (2006.01) A01N 43/707 (2006.01) C07D 253/075 (2006.01) C07D 405/04 (2006.01) C07D 409/04 (2006.01) C07D 487/04 (2006.01)
Patent
CA 1261329
Abstract of the Disclosure The invention relates to 4-methylamino-1,2,4-triazin-5- one of the formula Q: Image (Q) wherein R1 is C3-C8 cycloalkyl, or C3-C8 cycloalkyl which is substituted by C1-C4 alkyl; C3-C8 halocycloalkyl, C3-C8 alkyl, C3-C8 haloalkyl, 2-furyl, 2-thienyl, phenyl, benzyl, or phenyl or benzyl each sub- stituted by one or more members selected from the group consisting of halogen, C1-4 alkyl, C1-4 haloalkyl, C1-C4 alkoxy or C1-C4 haloal- koxy, A is either Image or -S-R4 in which R2 is hydrogen or methyl, R3 is cyclopropyl, cyclopropylmethyl, C1-C4alkyl, C3-C4alkenyl or C3-C4alkynyl, and R4 is methyl or ethyl, with the proviso that when A is NR2R3, then R1 may not be tert.-butyl, R2 may not be hydrogen and R3 may not be methyl simultaneously, and that when A is SR4, then R1 may not be tert.-butyl and R4 may not be methyl simultaneously. Image (II) These compounds have selective herbicidal properties and are therefore pre-eminently suitable for controlling weeds in crops of useful plants, for example in cereals, maize, soybeans and sugar cane. They are also suitable for controlling harmful insects.
471729
Bohner Beat
Tobler Hans
Fetherstonhaugh & Co.
Syngenta Participations Ag
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