摘要:
The 6-alkoxycarbonylpyridazin-3-one compounds given in the formula: wherein X represents a hydrogen or halogen atom; Y represents a halogen atom; R 1 represents a C 1 -C 6 alkyl group; R 2 represents a hydrogen atom or C 1 -C 3 alkyl group; R 3 represents a C 1 -C 3 haloalkyl group; B represents a hydrogen atom, OR 4 group or COOR 5 group; R 4 represents a hydrogen atom, C 1 -C 6 alkyl, C 3 -C 6 alkenyl, C 3 -C 6 alkynyl, (C 1 -C 8 alkoxy)carbonylC 1 -C 6 alkyl or carboxyC 1 -C 6 alkyl group; and R 5 represents a hydrogen atom, C 1 -C 6 alkyl, C 3 -C 6 alkenyl or C 3 -C 6 alkynyl group, are intermediates to produce the pyridazin-3-one compounds given in the formula: which are herbicidal compounds.
摘要:
Herbicidal compounds are of the formula: where R¹ = C1-3 alkyl, C1-6 alkoxy which may contain an unsaturated bond, C1-2 alkylthio, C1-3 alkylcarboxy or C1-3 alkylsulfonyloxy, all of which may be halo-substituted, C1-2 alkoxy-C1-2 alkoxy, C1-3 alkoxycarbonyl, hydroxycarbonyl, -CN, aminomethyl or o-or p-CH₂OH; R² = C1-2 alkyl, C1-2 alkoxy or C1-2 alkythio all of which may be halo-substituted, or a halogen atom; and one of R¹ and R² can be hydrogen; R³ = C1-2 alkyl. Five syntheses are described, (A) from precursor where R³ is -CH₃ by reaction with R³O Metal in an inert solvent at 20-100°C for 0.5-5 hrs; (B) from R¹ is -OH by reaction with a C2-C6 (halo) olefin, in an inert solvent at 30-150°C for 1-100 hrs; (C) from R¹ is C1-3 (halo) alkylsulfonyloxy at the o- or m-position, with or without an inert solvent in presence of a base at 0-50°C for 0.5-5 hrs; (D) from R¹ is C1-C6 (unsaturated) alkoxy at o- or m-position, by reaction with an alkyl, alkenyl or alkynyl halide, in an inert solvent in presence of a base at 20-150°C for 0.5-5 hrs. (E) from R¹= C1-3 acyl by reaction with a diacyl ether, with or without an inert solvent and in presence of an acid catalyst at 0-100°C for 0.5-30 hrs. The compounds are formulated with solid or liquid carriers or diluents into herbicidal compositions and are useful for control of weeds.
摘要:
Herbicidal compounds are of the formula: wherein R 1 is a hydrogen or halogen atom, a (halo-) C 1-3 -alkyl, (halo)-C 1-6 alkoxy, (halo-)alkynyloxy, halo-C 2-6 alkenyloxy, (halo-)C 1-2 alkylthio, phenoxy, (halo-)C 1-3 alkylcarboxy, C 1-2 alkoxy-Ci- 2 -hydroxy, halo-(C 2 - 3 )-alkoxy-(halo-) C 2 - 3 -alkoxy, (halo-) C 1-3 -alkylsulfonyloxy, C 1-3 alkoxycarbonyl, cyano or aminomethyl group, at the ortho - or meta - position; R 2 and R 3 is halogen, nitro, (halo-)C 1-2 -alkyl group; and C 1-2 -alkylthio or (halo-)C 1-2 -alkoxy group;and R 4 represents C 1-2 alkyl, provided that both of R 2 and R 3 are not at ortho position for the pyrimidine ring. Several preparation methods are described; and numerous specific compounds. A novel starting material is of the formula: where R 2 and R 3 are as above and can also be hydrogen and are not both ortho -; and W 2 is one of numerous substituent groups. Compounds (I) are made into usual herbicidal preparations, especially an emulsifiable concentrate, wettable powder, a suspension or granules, and are effective against various weeds in crop plants.
摘要:
There is disclosed a process for producing an iminothiazoline derivative of the general formula:
wherein R¹ is halogen, halo(lower)alkyl, halo(lower)alkoxy or halo(lower)alkylthio; R² is hydrogen or halogen; and R⁴ is hydrogen or lower alkyl. This compound (I) can be obtained by cyclization of a thiourea derivative of the general formula:
wherein R¹, R² and R⁴ are each the same as defined above, and R³ is hydrogen or (lower)alkylcarbonyl optionally substituted with at least one of halogen, lower alkyl and lower alkoxy.
摘要:
There is disclosed an iminothiazoline compound of the formula:
wherein R¹ is halogen, halo(lower)alkyl, halo(lower)alkoxy or halo(lower)alkylthio; R² is lower alkyl, chlorine, bromine or iodine; R³ is (lower alkyl)carbonyl, (lower cycloalkyl)carbonyl, (lower cycloalkoxy)carbonyl, (lower alkoxy)carbonyl or (lower alkyl)sulfonyl, all of which are optionally substituted with at least one substituent selected from halogen, lower alkyl, lower alkoxy, lower cycloalkyl and lower cycloalkoxy; and R⁴ is halogen. Also disclosed are a process for producing this compound, a herbicidal composition comprising this compound as an active ingredient, and a method for controlling undesired weeds by use of this compound as a herbicide.
摘要:
There is disclosed an iminothiazoline compound of the formula:
wherein R¹ is halogen, halo(lower)alkyl, halo(lower)alkoxy or halo(lower)alkylthio; R² is methyl, ethyl, chlorine, bromine or iodine; R³ is lower alkyl, lower cycloalkyl, lower alkoxy, lower cycloalkoxy, lower alkylamino, phenylamino or phenyl, all of which are optionally substituted with at least one substituent selected from halogen, lower alkyl, lower alkoxy, halo(lower)alkyl, lower cycloalkyl and lower cycloalkoxy; and R⁴ is hydrogen or halogen. Also disclosed are a process for producing this compound, a herbicidal composition comprising this compound as an active ingredient, and a method for controlling undesired weeds by use of this compound as a herbicide.
摘要翻译:公开了下式的亚氨基噻唑啉化合物:其中R 1为卤素,卤代(低级)烷基,卤代(低级)烷氧基或卤代(低级)烷硫基) R 2是甲基,乙基,氯,溴或碘; R 3是低级烷基,低级环烷基,低级烷氧基,低级环烷氧基,低级烷基氨基,苯基氨基或苯基,它们全部被至少一个选自卤素,低级烷基,低级烷氧基,卤代(低级)烷基 ,低级环烷基和低级环烷氧基; 和R 4是氢或卤素。 还公开了制备该化合物的方法,包含该化合物作为活性成分的除草组合物,以及通过使用该化合物作为除草剂来控制不需要的杂草的方法。