Abstract:
PROBLEM TO BE SOLVED: To obtain a new compound having herbicidal property and useful as an active ingredient of a herbicide preferably in the form of solution capable of directly scattering, emulsion, paste, oil dispersion, etc. SOLUTION: This compound is shown by formula I [X is O or S; R1 is H, hydroxyl, a 1-6C (substituted)alkyl or the like; R2 and R3 are each nitro, cyano, a halogen, H or the like; but in the case where X is O and R2 and R3 are each phenyl, R1 is not phenyl or H and all of R1 to R3 are not methyl or the like], for example N-isopropylthiophene-3,4-carboximide. For example, a compound of the formula I can be produced by reacting (A) a carboxylic acid anhydride of formula II with (B) an amine of the formula H2N-R1 in a molar ratio of the component A to the component B ranging from 0.9 to 1.5, (C) if necessary in the presence of an acid catalyst (ex. aromatic sulfonic acid), in a solvent at 0-150 deg.C, preferably 20-100 deg.C, preferably while removing a preparing reaction water or the like.
Abstract:
Substituted sulphonyl ureas have the general formula (I), in which n and m equal 0 or 1 and the substituents have the following meaning: R1 is hydrogen, alkyl, alkenyl or alkinyl; R2 is halogen or trifluoromethyl, when m equals 0 or, when m equals 1, R2 is alkyl, alkenyl or alkinyl, and when X stands for O or S and m equals 1, trifluoromethyl or chlorodifluoromethyl; X is O, S or N-R4, whereas R4 is hydrogen or alkyl; R3 is hydrogen, halogen, alkyl, halogenalkyl, alkoxy or halogenalkoxy; A is NO¿2?, NH2, OH, CN, SCN, S(O)oR?5, SO¿2NR?6R7, ER7¿, whereas E stands for O, S or NR9, the groups (a), (b) possibly substituted C¿1?-C4-alkyl or C2-C4-alkenyl; R?5¿ is a possibly substituted alkyl group, a possibly substituted cycloalkyl group, an alkenyl group or an alkinyl group; R6 is hydrogen, an alkoxy group, an alkyl group, or represents together with R7 a C4-C6-alkylene chain, wherein a methylene group may be substituted by an oxygen atom or a C1-C4-alkylimino group; R7 is a possibly substituted alkyl, alkenyl or alkinyl group, a cycloalkyl group and may also represent, when E = NR9, methyl sulphone, trifluoromethyl sulphone, ethylsulphone, possibly halogen-substituted acetyl, dimethylcarbamoyl, dimethylsulphamoyl; o equals 0, 1 or 2; p, q equal 0 and/or 1 (when p = 0, q = 0); R8 is hydrogen or halogen; R9 is hydrogen, methyl, ethyl; R10 is alkyl, halogenalkyl, alkoxyalkyl, alkenyl, cycloalkyl, halogenalkenyl or, when p = 1 and q = 0, it may also be alkylamino or dialkylamino. Also disclosed are their environmentally compatible salts, a process and intermediates for producing the compounds having the formula (I) and their use as herbicides.
Abstract:
The invention relates to the use of phenylsemicarbazones of formula (I); wherein R 1 and R 2 are each independently hydrogen, halogen, CN, C 1 - C 4 alkyl, C 1 -C 4 alkoxy, C 1 -C 4 haloalkyl or C 1 -C 4 haloalkoxy and R 3 is C 1 - C 4 alkoxy, C 1 -C 4 haloalkyl or C 1 -C 4 haloalkoxy, or agriculturally acceptable salts thereof for seed treatment and corresponding methods of seed treatment for controlling arthropod pests. The invention also relates to seed treatment formulations comprising phenylsemicarbazones of formula (I) or an agriculturally acceptable salt thereof, and to seeds treated therewith.
Abstract:
Saccharin derivatives of formula (I) are disclosed, wherein the substituents have the following meanings: L, M stand for hydrogen, alkyl, alkoxy, alkylthio, chlorine, cyano, methylsulphonyl, nitro or trifluoromethyl; Z stands for hydrogen, alkyl, cycloalkyl, alkenyl, alkinyl, acyl, benzyl (optionally substituted by halogen, alkyl), or phenyl; J stands for an optionally substituted cyclohexane-1,3-dione ring linked at position 2.
Abstract:
A substituted 2-phenylpyridine of formula (I), where Ar is a radical (A) or (B) and where the ring R is a fused heterocyclic ring which, together with the phenyl ring, forms one of the following bicyclic rings (a) to (l) and the N-oxides of (I) and the agriculturally utilizable salts of (I) if these exist. Use: herbicides, desiccation/defoliation of plants.