60 results about "Mesosulfuron-methyl" patented technology

The invention discloses a flucarbazone-Na compounded herbicide which comprises an active component I (flucarbazone-Na), an active component II and auxiliary components, wherein the active component II is one or a combination of several of mesosulfuron methyl, isoproturon, chlortoluron, pyroxsulam, Clodinafop-propargyl, carfentrazone-ethyl, tribenuron-methyl, fluroxypyr, methoxone, 2,4-D-butyl ester, dicamba, bromoxynil, thifensulfuron methyl, amidosulfuron, bensulfuron-methyl, flumetsulam, fluoroglycofen-ethyl and florasulam; the auxiliary components comprise an auxiliary agent and also comprise one of a filler and a solvent; the auxiliary agent is one or a combination of two of an emulsifying agent, a dispersant, a wetting agent, a disintegrant, an agglomerant, an antifreezing agent and a thickening agent; the mass sum of the active component I (flucarbazone-Na) and the active component II is 1%-85% of the total mass of the flucarbazone-Na compounded herbicide; and the mass ratio of the active component I to the active component II is (1:20)-(20:1). The flucarbazone-Na compounded herbicide disclosed by the invention is a novel herbicide for preventing and removing weeds in a wheatland.

The invention discloses a mesosulfuron-methyl synthetic method. The mesosulfuron-methyl synthetic method is characterized in that mesosulfuron-methyl is prepared from raw materials such as paratoluic acid by adopting the seven steps of chlorosulfonation-ammonolysis, oxidation, dehydration, reduction, alcoholysis, methyl sulfone chloride acylation and condensation. The mesosulfuron-methyl synthetic method provided by the invention has the advantages of being low in cost of the raw materials, easy in availability of the raw materials, simple in operation and mild in conditions, having low requirements on equipment, high yield and strong practicability and being suitable for industrial production.

The invention discloses a mesosulfuron-methyl compound herbicide which consists of mesosulfuron-methyl as active ingredient I, active ingredient II and auxiliary ingredients; the active ingredient II is the combination of one or more of flucarbazone-Na, isoproturon, chlortoluron, pyroxsulam, 2-methyl-4-chlorophenoxy acetic acid, 2,4-D butyl ester, dicamba, bromoxynil, amidosulfuron, bensulfuron-methyl, flumetsulam, fluoroglycofen-ethyl and florasulam; the auxiliary ingredients consists of adjuvant and one of filler and solvent, and the adjuvant is the combination of one or more of emulsifying agent, dispersing agent, wetting agent, disintegrant, binding agent, antifreezing agent and thickening agent; the sum of the weight of the mesosulfuron-methyl as the active ingredient I and the weight of the active ingredient II is 1 to 85 percent of the total weight of the mesosulfuron-methyl compound herbicide; and the weight ratio of the active ingredient I to the active ingredient II is 1:20 to 20:1. The mesosulfuron-methyl mixed herbicide is novel herbicide for wheatlands.

The invention provides a herbicidal composition comprising a mixture of: (a) polymeric microparticles containing a first herbicide, wherein the first herbicide is a synthetic auxin herbicide (e.g. dicamba, MCPA or 2,4-D) or an acetolactate synthase (ALS) inhibitor herbicide (e.g. triasulfuron, tribenuron-methyl, iodosulfuron-methyl, mesosulfuron-methyl, sulfosulfuron, flupyrsulfuron-methyl, or pyroxsulam); wherein the first herbicide, when in a salt-free form and when not contained within polymeric microparticles, antagonises the herbicidal activity of pinoxaden; and (b) pinoxaden; wherein the polymeric microparticles are controlled-release matrices, within which is the first herbicide, and which function in such a way as to control and/or slow down the release of the first herbicide from the polymeric microparticles into a liquid (e.g. aqueous) medium when the polymeric microparticles are placed (e.g. dispersed) in and in contact with the liquid medium. The containing of the first herbicide within the controlled-release polymeric microparticles is thought to mitigate the antagonism of the grass-weed-herbicidal activity of pinoxaden which might otherwise be caused by the first herbicide depending on the circumstances. The invention also provides a method of reducing the antagonistic effect on the control of monocotyledonous weeds in non-oat cereals which is shown by a herbicidal mixture of either a synthetic auxin herbicide with pinoxadenor an ALS inhibitor herbicide with pinoxaden, which comprises applying a herbicidal composition according to the invention. The invention also provides a herbicidal composition comprising (a) polymeric microparticles (e.g. controlled-release matrices), containing a first herbicide as defined above, and either (x) a nonionic surfactant or (y) a surface-modified clay, as defined herein.

The invention relates to a preparation method of mesosulfuron-methyl. The method comprises the following steps: taking 4-cyano-2-nitrobenzoate as a starting raw material; firstly performing a nucleophilic substitution reaction with benzyl mercaptan; then, performing reduction hydrogenation by using raney nickel, performing methylsulfonyl acidylation by using methylsulfonyl chloride; then, performing chlorination by using chlorine gas and performing ammoniation by using ammonia gas to obtain a key intermediate, namely 2-methoxycarbonyl-5-methanesulfonyl ammonia toluenesulfonamide; and finally,performing condensation to obtain a target product, namely the mesosulfuron-methyl. A route of the method is mild in reaction process condition; the operation is easy; the method is suitable for industrial mass production; less environmental pollution is caused; and the method is a relatively good novel method for synthesizing the mesosulfuron-methyl.

The invention relates to the field of pesticide preparations and discloses a wheat field herbicide composition. The herbicide composition is prepared from mesosulfuron methyl and dicamba in a mass ratio of 1:(5-30). The invention also discloses a herbicide prepared from the herbicide composition and auxiliary materials which can be accepted by pesticide preparations, wherein the herbicide composition accounts for 1-90% of the herbicide by weight. The herbicide composition and the preparation thereof have the following beneficial effects: the mesosulfuron methyl and the dicamba are compounded to be used as active ingredients, have complementary advantages, delay the drug resistance of weeds, reduce the environmental pollution and simultaneously improve the drug effects; grass weeds and broadleaf weeds can be effectively controlled through drug administration once, thus reducing the using amount as well as the using types and frequencies of the pesticide; and the herbicide composition and the preparation thereof can be widely applied in the agricultural field.

The invention relates to a mixed herbicide composition including mesosulfuron-methyl and dicamba. The herbicide composition employs mesosulfuron-methyl and dicamba as active ingredients, wherein the weight ratio of the active ingredients (dicamba : mesosulfuron-methyl) is 1:0.7-60:1. The herbicide composition has the advantages of low toxicity, weak sensitization, low poison to humans and animals, wide herbicide spectrum and significant synergistic effect for preventing and eradicating weeds, and is particularly suitable for prevention of various weeds in multiple crop fields, especially in wheat fields.

The invention provides synergistic weeding composition containing pinoxaden and mesosulfuron-methyl. The synergistic weeding composition is characterized by comprising active components A and B, wherein the active component A contains pinoxaden and mesosulfuron-methyl; the active component B contains one or combination of more than one of carfentrazone-ethyl, flufenacet, pyraflufen-ethyl, bromoxynil octanoate, fenoxaprop-P-ethyl, aminopyralid, flurochloridone and flupoxam; the synergistic weeding composition further contains auxiliaries capable of being used in pesticide preparation processing, conventional pesticide preparations are prepared, and the weeding composition is applied to control for unnecessary plants.

A crystalline form of mesosulfuron-methyl of formula (I), the crystal preparation process, the analyses of the crystal through various analytical methods and using the crystal to prepare stable agrochemical formulation. The invention also describes the use of various solvents towards the crystalline form preparation conditions.

The invention relates to the technical field of agricultural chemicals and discloses a wheat post-emergence compound herbicide. The wheat post-emergence compound herbicide comprises two active ingredients including mesosulfuron-methyl and bensulfuron-methyl; the weight ratio of mesosulfuron-methyl and bensulfuron-methyl 1:4-10; preferably, the mass percent of mesosulfuron-methyl and bensulfuron-methyl in the compound herbicide is 3% to 85%. The post-emergence compound herbicide provided by the invention can prevent and eliminate not only annual grass family weeds but also broadleaf weeds, and the weeding effect is remarkable; besides, the post-emergence compound herbicide has remarkable synergism, has no influence on succeeding crops and is an ideal herbicide.

The invention relates to a compound synergistic herbicide composition and in particular relates to a synergistic herbicide composition applied to the fields of resistant oilseed rapes, resistant soybeans and other crops. The synergistic herbicide composition is characterized by comprising compounds A and compounds B, wherein the compounds A are selected from at least one of fenoxaprop-P-ethyl and quizalofop-P-ethyl; the compounds B are selected from at least one of cyclosulfamuron, bensulfuron-methyl, amidosulfuron, mesosulfuron-methyl and nicosulfuron; the weight ratio of the compounds A to the compounds B is (100 to 1)-(1 to 100). The synergistic herbicide composition has the beneficial effects that through binary compounding, the obtained new composition gains synergistic control effects on monocotyledonous weeds and dicotyledonous weeds in the fields of resistant oilseed rapes, resistant soybeans, and the like.

The invention relates to a weeding composition containing halauxifen-methyl, carfentrazone-ethyl and mesosulfuron-methyl. Effective ingredients of the weeding composition consist of halauxifen-methyl, carfentrazone-ethyl and mesosulfuron-methyl, wherein the part-by-weight ratio of halauxifen-methyl to carfentrazone-ethyl to mesosulfuron-methyl is (1-10): (1-20): (1-10). The weeding composition disclosed by the invention has a remarkable synergistic effect, the wheat-paddock annual weed preventing and weeding effects are obviously superior to those obtained when each single preparation is used independently, the weed control spectrum is enlarged, meanwhile, the consumption of pesticides is reduced, the generation of drug resistance of weeds is delayed, and environmental pollution is reduced.

The invention provides a preparation method of 6-aminomethyl-1,1-dioxo-1,2-benzothiazol-3-one. The method comprises following steps of: synthesizing 2-(3-sulfo-4-methylbenzyl)-1H-isoindole-1,3-dione;2-(3-chlorosulfonyl-4-methylbenzyl)-1H-isoindole-1,3-dione; synthesizing 2-(3-aminosulfonyl-4-methylbenzyl)-1H-isoindole-1,3-dione; synthesizing 2-(1,1-dioxo-1,2-benzothiazol-3-keto-6-ylmethyl)-1H-isoindole-1,3-dione; and synthesizing the target compound. The synthetic method is a novel synthetic method of a mesosulfuron-methyl intermediate that is methyl 4-(methylsulfonamidomethyl)-2-sulfamoylbenzoate. The method does not need a hydrogenation reduction, reaction conditions are mild, various raw materials are easy to obtain, the yield is high, the production cost can be effectively reduced, and the method has a relatively strong industrial application prospect.

The invention discloses a dispersible oil suspending agent containing mesosulfuron-methyl and clodinafop-propargyl and a preparation method thereof, and belongs to the technical field of pesticide. The dispersible oil suspending agent disclosed by the invention contains the mesosulfuron-methyl and the clodinafop-propargyl according to the mass ratio of (0.01 to 1 percent): (21 to 50 percent); the sum of the mass percentage of the mesosulfuron-methyl and the clodinafop-propargyl in the total mass of the dispersible oil suspending agent is 1 to 90 percent. Firstly, an emulsifying agent, a dispersing agent, the mesosulfuron-methyl and the clodinafop-propargyl are ground until the particle diameter is 0.01cm or less; then, the materials are added into a reaction kettle to be uniformly mixed and dispersed; in the high-speed shearing state, a thickening agent is added; the materials are ground until the particle diameter is 5mu m or less; then, the stabilizing agent, the plant oil and the de-ionized water are added into the reaction kettle together; the materials are mixed and uniformly dispersed to obtain the dispersible oil suspending agent containing mesosulfuron-methyl and clodinafop-propargyl. The dispersible oil suspending agent containing mesosulfuron-methyl and clodinafop-propargyl disclosed by the invention has an obvious synergy effect.

The invention discloses herbicide synergistic composition for controlling aegilops tauschii in the wheat field. Effective constituents of the herbicide synergistic composition comprise pinoxaden, mesosulfuron-methyl, sesamin and mefenpyr-diethyl, and a weight ratio of pinoxaden, mesosulfuron-methyl, sesamin and mefenpyr-diethyl is 1-8:1:0.1-6:1-6. The herbicide synergistic composition further contains auxiliaries and solvents acceptable in pesticide. After addition of the auxiliaries and the solvents, the effective constituents including pinoxaden, mesosulfuron-methyl, sesamin and mefenpyr-diethyl in the herbicide synergistic composition account for 5%-80% of total weight of the composition. The dosage form of the herbicide synergistic composition can be a dispersable oil suspension, a dispersable oil suspoemulsion or emulsifiable concentrate. The herbicide synergistic composition is remarkable in synergism, and has a wide herbicide controlling spectrum and remarkable control effect onworst weeds such as the aegilops tauschii, lolium multiflorum and the like, thereby being weeding composition which is safe to wheat and synergistic for the wheat field.

The invention provides a 2-(4-methylbenzyl)-1H-isoindole-1,3-dione derivative, wherein the structural formula is defined in the specification, and the group R1 in the structural formula is hydroxyl, chloro or amino. The invention further provides a synthesis method of the 2-(4-methylbenzyl)-1H-isoindole-1,3-dione derivative. According to the invention, the 2-(4-methylbenzyl)-1H-isoindole-1,3-dionederivative can be used as the intermediate of 6-aminomethyl-1,1-dioxo-1,2-benzothiazole-3-one, the new method and the new synthetic route are provided in the synthesis of a mesosulfuron-methyl intermediate 6-aminomethyl-1,1-dioxo-1,2-benzothiazole-3-one, and the new synthetic route does not need hydrogenation reduction reaction, and has characteristics of mild reaction conditions, easily available raw materials, high yield, effectively reduced production cost and strong industrial application prospect.

The invention relates to the technical field of plant protection, particularly to a clacyfos-containing herbicide composition and applications in prevention and removal of agricultural weeds. The herbicide composition contains an active component A and an active component B, wherein the active component A is clacyfos, the active component B is selected from halosulfuron-methyl, iodosulfuron-methylsodium, amidosulfuron, chlorimuron-ethyl, cyclosulfamuron, flucarbazone-sodium, prosulfuron, tritosulfuron, mesosulfuron-methyl, propoxycarbazone-sodium, pyroxsulam, flumetsulam, florasulam and the like, and a mass ratio of the active component A to the active component B is 1:(0.001-100). The clacyfos-containing herbicide composition is small in dosage and high in prevention effect, relieves theburden of the environment, is safe to people, livestock, beneficial organisms and environmental ecology, and meets the requirement of sustainable development.