53 results about "Thiophenate" patented technology

The present application provides a kind of herbicidal composition comprising trifluralin, acetochlor and thifensulfuron-methyl, active ingredients comprising trifluralin, acetochlor and thifensulfuron-methyl, and the mass ratio of trifluralin, acetochlor and thifensulfuron-methyl is 10-30:20-40:0.5-2.The herbicidal composition of the present application can be used for the control of annual weeds in crop fields, and has a significant synergistic effect.

The invention belongs to the technical field of environmental microorganisms, and provides Klebsiella capable of degrading thifensulfuron methyl and simultaneously promoting plant growth, the Latin of the Klebsiella is Klebsiella sp., the preservation name is Klebsiella sp. HDJY-1, the preservation place is China Center for Type Culture Collection, the preservation date is November 17, 2025, and the preservation number is CCTCC NO: M 20252578. The strain has excellent low temperature resistance and alkali resistance, not only can grow and propagate by taking thifensulfuron methyl as a unique carbon source and energy, but also can secrete plant growth-promoting substances such as indoleacetic acid and the like, and has a nitrogen fixation function. Therefore, the strain provided by the invention not only can remarkably promote plant growth and improve nutrient absorption efficiency so as to improve plant biomass and agricultural product quality, but also can provide an excellent strain resource for thifensulfuron methyl pollution remediation of farmland soil.

The present application provides a novel structure of thiophene compound, the compound has significant inhibitory effect on spore germination and appressorium formation of various plant pathogenic fungi and oomycetes (such as Pyricularia oryzae, Colletotrichum gloeosporioides, Gibberella, Phytophthora, Phytophthora capsici), which can be used for preventing and treating plant diseases caused by fungi and / or oomycetes.

The present invention relates to an emulsion formulation comprising thiencarbazone-methyl or a pesticide-acceptable salt thereof, one or more organic water-immiscible solvents, one or more organic water-miscible solvents selected from linear and cyclic carbamate esters, one or more emulsifiers, and one or more organic bases, wherein the formulation exhibits a pH of 5.5 to 9.

The application provides a fermented vegetable oil and a preparation method thereof. The preparation method comprises the following steps: crushing a vegetable oil raw material and mixing the same with water to obtain a raw material solution; adding a biological enzyme to the raw material solution to perform enzymolysis, and after enzyme inactivation, an enzymolysis product is obtained; then, a fermentation bacteria is added to perform fermentation, sterilization and centrifugation to obtain an oily liquid; the oily liquid, 1,2-dilauroylphosphatidyl ethanolamine, a self-assembled structure regulator and propylene glycol are uniformly mixed, and then added into water to obtain a liposome suspension of the fermented vegetable oil; 3-thiophene malonic acid and / or flower acid are first added into the liposome suspension of the fermented vegetable oil, and then heparan sulfate and calcium chloride are added, and after reaction, the fermented vegetable oil encapsulated in a carrier is obtained. The preparation method of the fermented vegetable oil has good long-term stability, and can also improve the poor compatibility of the fermented vegetable oil with a water-based system.

The application belongs to the technical field of pharmaceutical chemistry, and particularly relates to a pyrimidine and thienopyrimidine derivative, a preparation method and application thereof. The pyrimidine derivative in the application is a compound with the structure of formula I, and the thienopyrimidine derivative is a compound with the structure of formula II. The pyrimidine and thienopyrimidine derivative can be used as an AcrB efflux pump inhibitor, and can significantly enhance the antibacterial activity when combined with an antibacterial drug. The Nile red experiment shows that the compound 64c can completely inhibit the AcrB-mediated efflux at a concentration of 50 μM, and the effect is better than that of the positive control PA beta N. The compound in the application has novel structure and excellent activity, and can be used for preparing an AcrB efflux pump inhibitor for reversing bacterial drug resistance and an antibacterial sensitizing drug.

The application belongs to the technical field of near-infrared luminescence and ultrasonic treatment materials, discloses a kind of activatable acoustic power nano materials based on conjugated polymer and its preparation method and application, comprising the following steps: 2,6-di (trimethyl tin) -4,4-di (2-ethylhexyl) -dithiophene and cyclopentadiene, 4,7-dibromo-5,6-dinitrobenzo [c] [1,2,5] thiazole, catalyst tetra (triphenylphosphine) palladium are added into reaction tube, toluene is added, and the reaction product is settled with methanol under nitrogen protection, to obtain conjugated polymer;Degradable mesoporous silica is used to wrap to realize the water-soluble of molecule, and the corresponding activatable acoustic treatment reagent is obtained.The material disclosed in the application can be used for activatable acoustic dynamics treatment guided by near-infrared two-zone imaging, which helps to improve the specificity of tumor treatment, and mesoporous silica wrapping can also be used for drug loading and transport.

The invention discloses a degradable environment-friendly fiber and a preparation method thereof, and relates to the field of fibers. When the degradable environment-friendly fiber is prepared, triethyl phosphite firstly reacts with 3-(2-bromoethyl) thiophene and then reacts with dimethyl terephthalate and ethylene glycol, and modified polyester is prepared; the preparation method comprises the following steps: enabling chitosan oligosaccharide to react with 4-hydroxy-3-pyridylaldehyde, thionyl chloride and 2-(dimethylaminomethyl) thiophene in sequence, so as to prepare functionalized chitosan oligosaccharide; mixing the functionalized chitosan oligosaccharide, zinc acetate and modified polyester, and performing melt spinning to obtain composite fibers; mixing thiophene, ferric chloride and trichloromethane to prepare a thiophene solution; and immersing the composite fiber in a thiophene solution, and drying to obtain the degradable environment-friendly fiber. The degradable environment-friendly fiber prepared by the invention has excellent flame retardance, antibacterial property, antistatic property and light aging resistance.

The application provides a herbicide composition for preventing and treating cyperus iria, a preparation method and application thereof, and aims to solve the technical problem of lacking effective and controllable herbicide for cyperus iria and various monocotyledonous and dicotyledonous weeds in the field. The herbicide composition is composed of effective components and necessary adjuvants, wherein the effective components are composed of atrazine, halosulfuron, thifensulfuron-methyl and fluroxypyr according to a weight ratio of 9.0-54.0:0.75-3.0:0.75-3.8:1.5-6.5. The herbicide composition has rapid and effective prevention and control effects on common annual grass weeds and broadleaf weeds in the millet field, and can eradicate the malignant weed cyperus iria. The herbicide composition is safe to the millet, and can also play a certain role in controlling the growth of the millet, reduce the plant height of the millet, reduce the risk of lodging of the millet, and improve the yield of the millet.

Disclosed herein are apyrase inhibitors of Formula (I): (I). Also disclosed herein are methods for using the disclosed inhibitors, including in methods for protecting crops from pests. In one aspect the apyrase inhibitors are useful for enhancing the activity of pesticides for the protection of crops from pathogens and to support crop yield.

The application relates to the technical field of platinum recovery, and particularly discloses a method for purifying and recovering platinum. The method for purifying and recovering platinum comprises the following steps: extracting chloroplatinate ions from a liquid to be purified by using an organic extractant, the liquid to be purified being an aqueous solution in which platinum exists in the form of chloroplatinate ions, and separating an organic phase; the organic extractant is obtained by dispersing 2-(thiophenylmethyl) diethyl phosphonate in methyltrioctylammonium chloride; reacting the chloroplatinate ions in the organic phase with an aqueous reagent, separating the organic phase and the aqueous phase, back-extracting platinum into the aqueous phase, and separating the aqueous phase; adding a reagent to the aqueous phase to convert the platinum into a precipitate; separating the precipitate, and calcining to obtain elemental platinum. The methyltrioctylammonium chloride and 2-(thiophenylmethyl) diethyl phosphonate synergistically extract the chloroplatinate ions with high selectivity, have extremely high extraction capacity, reduce the amount of the organic extractant, and reduce the pressure of subsequent treatment of the organic extractant.

The invention discloses a trithiophene type fluorescent probe for detecting total polar substances of edible oil as well as a preparation method and application of the trithiophene type fluorescent probe. The preparation method comprises the following steps: directly carrying out a coupling reaction on 4-bis (4-methoxyphenyl) amino] phenyl]-[2, 2 ': 5', 2 ''-trithiophene-5-formaldehyde and 4-bis (4-methoxyphenyl) aminophenylboronic acid to prepare 5''-[4-[bis (4-methoxyphenyl) amino] phenyl]-[2, 2 ': 5', 2 ''-trithiophene-5-formaldehyde, and reacting the compound with 4-methylquinoline to synthesize the probe (E)-4-methoxy-N-(4-methoxyphenyl)-N-[4-(5''-(2-(quinoline-4-yl) vinyl)-[2, 2 ': 5', 2 ''-trithiophene-5-formaldehyde. The compound can selectively detect the polarity of edible oil, yellow fluorescence is quenched after the polarity of the edible oil is increased, and the compound can be used as a fluorescent probe for detecting the polarity of the edible oil.

The application discloses a kind of twelve-hole polyester staple fiber and preparation method thereof, it is related to polyester technical field.The application first 3-thiophene isocyanate is reacted with phenol to obtain thiophene group blocked isocyanate;Carbon nanotube is carboxylated with sulfuric acid and nitric acid, then reacted with 3-aminothiophene to obtain thiophene group carbon nanotube, thiophene, thiophene group blocked isocyanate is oxidized and polymerized on the surface of thiophene group carbon nanotube to obtain polythiophene carbon nanotube;N, N-dimethyl-n-octylamine is reacted with epichlorohydrin to obtain functional diol;Ethylene glycol, terephthalic acid, 2-vinyl terephthalic acid and functional diol are prepared into pre-modified polyester by polycondensation;Pre-modified polyester is reacted with methoxypolyethylene glycol mercapto to obtain modified polyester;Modified polyester and polythiophene carbon nanotube are melt spun to obtain finished fiber.The twelve-hole polyester staple fiber prepared by the application has the effects of antibacterial, moisture absorption, antistatic and good mechanical properties.

This invention provides a cyan-transparent electrochromic polymer, its preparation method, and its applications, belonging to the field of electrochromic polymer technology. The invention uses 6,6'-(2,6-dibromo-4H-cyclopentano[2,1-b:3,4-b']dithiophene-4,4-diyl)bis(hexyl-1-ol), 2,6-di(trimethyltin)-4,4-di(2-ethylhexyl)-dithiophenecyclopentadiene, and 4,7-dibromobenzo[c][1,2,5]thiadiazole as main raw materials, reacting them under the action of a catalyst to obtain a cyan-transparent electrochromic polymer. The film made from the cyan-transparent electrochromic polymer of this invention has an optical contrast ratio of 47.01% in the 719 nm wavelength range, a coloring time of 0.81 s, and a fading time of 0.32 s.

The present application provides a method for electro-synthesis of a thiophene-based conductive polymer film in an aqueous solution and application of the film, which comprises electrochemical synthesis of a conductive polymer film in an aqueous solution and metallization of the film. Traditional preparation methods of a thiophene-based conductive polymer film have poor solubility of polymer monomers, and thus the monomers need to be modified or dissolved in special organic solvents. The use of organic solvents not only pollutes the environment, but also limits the universality of the preparation of the polymer film to some extent and affects its large-scale application. The present application provides a method for electro-synthesis of a thiophene-based conductive polymer film in an aqueous solution, which uses an aqueous electrolyte solution with low price and almost no pollution to the environment, and can quickly prepare a thiophene-based conductive polymer film with high quality and high stability. Further metallization modification of the film can be applied to various electronic product fields, especially flexible and wearable electronic information products.

The invention belongs to the technical field of medicines, and particularly relates to application of a tetrahydrothieno [2, 3-c] pyridine compound and a derivative of the tetrahydrothieno [2, 3-c] pyridine compound. The compound provided by the invention has a structure as shown in a formula I, wherein R1 and R2 are independently selected from hydrogen and substituted or unsubstituted C1-C4 alkyl; and R3 is independently selected from a substituted or unsubstituted five-membered aromatic heterocyclic ring. The anti-candida albicans activity of the tetrahydrothieno [2, 3-c] pyridine compound and the pharmaceutically available salt provided by the invention is found for the first time, and the tetrahydrothieno [2, 3-c] pyridine compound and the pharmaceutically available salt can be used for clinically treating fungi such as candida albicans, and can effectively solve the problem of fungus drug resistance.

The invention discloses a mattress material based on modified fibers and a preparation method of the mattress material. The mattress material comprises nylon 66 fibers, low-melting-point fibers and the modified fibers. The low-melting-point fiber is ES bi-component parallel composite fiber composed of polypropylene and polyethylene, and the modified fiber is prepared by mixing a modified polymer and a modified filler to prepare a spinning solution and then carrying out electrostatic spinning and ultraviolet irradiation. Molecular chains of the modified polymer contain rich furan rings and thiophene rings, synthesis of bacterial cell walls can be destroyed, the furan is grafted with oximido, and a formed furan oxime ester unit can generate highly unstable and reactive free radicals, so that metal ions in cells are unbalanced to cause change of cell metabolism homeostasis. The lysozyme fixed on the modified filler can be hydrolyzed to form peptidoglycan of bacterial cell walls, so that the cell walls are broken, and the material has good antibacterial performance.

The invention discloses a salt-tolerant pseudomonas stutzeri capable of efficiently degrading polycyclic aromatic hydrocarbon and application of the pseudomonas stutzeri. The strain is preserved in Guangdong Microbial Culture Collection Center on June 24, 2024, and the preservation number is GDMCC (China General Microbiological Culture Collection Center): 64785. The strain can efficiently degrade phenanthrene and has good environmental adaptability, under the conditions that the pH is 6-8, the salinity is 0-3% and the temperature is 30 DEG C, the degradation rate of 200 mg / L phenanthrene in 48 h can reach 96% or above, and the strain also has efficient degradation capacity for high-concentration phenanthrene. In addition, the strain WH-1 has a certain degradation broad spectrum, and can degrade polycyclic aromatic hydrocarbon fluorene or pyrene, dibenzothiophene and biphenyl. The pseudomonas stutzeri WH-1 obtained by the method disclosed by the invention has a relatively great application potential in the bioremediation of environmental polycyclic aromatic hydrocarbon pollution, and can be applied to the bioremediation of the environmental polycyclic aromatic hydrocarbon pollution.

The invention discloses an anti-alopecia emulsion and a production process thereof, and relates to the technical field of daily chemical products, in order to improve the anti-alopecia effect of the shampoo, a bacteriostatic agent component is prepared and added, and the combination of a bacteriostatic agent and skin lipid is effectively improved in a manner of generating a silane long chain segment in the bacteriostatic agent component, so that the anti-alopecia effect of the shampoo is improved, and the anti-alopecia effect of the shampoo is improved. The active substances can enter the hair follicles conveniently, so that the activity of malassezia is inhibited, the active substances can be prevented from being taken away by flowing water during washing by combining with lipid, and the active substances can be retained on the skin surface for a long time to inhibit the reproduction of malassezia; the thiophene ring, the pyridine ring, the halamine group and other structures have excellent antibacterial activity and can inhibit fungal proliferation activity, so that the antibacterial effect on malassezia is effectively improved, and the problem of alopecia caused by malassezia reproduction is avoided.

The invention relates to the technical field of oral biomedical materials, in particular to an oral restoration membrane material and a preparation method thereof. In order to improve the antibacterial performance of the oral cavity repairing film, the prepared oral cavity repairing film material adopts a multi-layer composite film structure, a back film in contact with an external oral cavity environment is made of a film prepared from PLGA, and gelatin-based hydrogel with an antibacterial function is used as an inner layer material of the oral cavity repairing film inside, so that the antibacterial performance of the oral cavity repairing film is improved, and the antibacterial performance of the oral cavity repairing film is improved. The porphyromonas gingivalis prepared from porphyromonas gingivalis, which contains thiophene and imidazole groups, and can generate antibacterial activity on common periodontal pathogenic bacteria, so that the alveolar bone can be prevented from being invaded by the porphyromonas gingivalis in the repairing process, and the repairing process is accelerated.

The invention relates to the technical field of platinum recovery, and particularly discloses a method for purifying and recovering platinum. The method for purifying and recovering platinum comprises the following steps: extracting chloroplatinic acid radical ions from a to-be-purified solution which is an aqueous solution in which platinum exists in the form of chloroplatinic acid radical ions by adopting an organic extracting agent, and separating out an organic phase; the organic extraction agent is obtained by dispersing 2-(thiophenemethyl) diethyl phosphonate in methyl trioctyl ammonium chloride; carrying out reaction on an aqueous reagent and chloroplatinic acid radical ions in the organic phase, layering into the organic phase and a water phase, reversely extracting platinum into the water phase, and separating out the water phase; adding a reactant into the water phase, and converting platinum into precipitate; and separating out the precipitate, and calcining to obtain the platinum elementary substance. The methyl trioctyl ammonium chloride and the 2-(thienyl methyl) diethyl phosphonate have a synergistic effect, chloroplatinic acid radical ions are extracted with high selectivity, the extraction capacity is extremely high, the use amount of the organic extraction agent is reduced, and the pressure of follow-up treatment of the organic extraction agent is relieved.

The present application relates to the technical field of photocatalysis, and particularly relates to a thiophene-modified iron porphyrin polymer and a preparation method and photocatalytic application thereof. The present application discloses a thiophene-modified iron porphyrin polymer, which comprises the following raw materials: iron thiophene-based porphyrin, mesoporous graphite phase carbon nitride and an auxiliary agent, and the weight ratio of the iron thiophene-based porphyrin, the mesoporous graphite phase carbon nitride and the auxiliary agent is (1-1.2):100:(3-4). The present application discloses a thiophene-modified iron porphyrin polymer, which is loaded on the surface of mesoporous graphite phase carbon nitride by an in-situ chemical polymerization method, thereby solving the problem of instability of a current molecular catalyst; as a photocatalyst, the thiophene-modified iron porphyrin polymer can catalytically reduce carbon dioxide into carbon monoxide under visible light (lambda=420nm) excitation, can realize 120-hour ultra-long time stable catalysis, and the selectivity of the product carbon monoxide is as high as 98%, thereby solving the problem of difficult product separation.

The application discloses a preparation method of a polymer modified spherical silica aerogel material. First, 3-(acryloyloxy)propyl-2-thiophene acrylate is synthesized through esterification and grafting reaction, and then is subjected to free radical polymerization with vinylpyridine under the action of an initiator and a chain transfer agent, and is subjected to proton acid doping and spray drying to obtain a conductive polymer. After hydrolysis of tetraethyl orthosilicate, the conductive polymer, phosphonated chitosan microspheres and a bridging agent are mixed, and pH and viscosity are adjusted to obtain a composite sol; after drop ball emulsification, gelation, ultrasonic template removal, gradient replacement and subcritical drying, the composite sol is subjected to pulse electrochemical doping and plasma annealing treatment. The prepared aerogel polymer has low charge transfer resistance and excellent conductivity, and has application potential in electrochemical energy storage devices such as supercapacitors.

The invention discloses an oxidation pretreatment method for phoxim in an organophosphorus pesticide based on a photo-initiation free radical oxidation system, and the method comprises the following steps: mixing the organophosphorus pesticide with a photoinitiator, and carrying out oxidation pretreatment under illumination; the organophosphorus pesticide contains phoxim; the photoinitiator is any one or more than two of curcumin, alpha-terthienyl, a photoinitiator 819, a photoinitiator 2959 and tetraphenylporphyrin. The problems that in the prior art, an excessively added oxidizing agent cannot be completely reduced, the cost is high, and the detection result is inaccurate are solved. After illumination is stopped, free radicals in a reaction system can be dissipated in an extremely short time to form a neutralized state, and an additional reducing agent does not need to be added. The method disclosed by the invention has a very good effect on phoxim and also has important significance on guaranteeing food safety.

The invention discloses a porphyrin framework polymer as well as a preparation method and application thereof. The porphyrin framework polymer is synthesized by taking tetra (5-bromothienyl) porphyrin as an intermediate, introducing thiophene substituents into four meso sites of porphyrin and then carrying out Stille coupling reaction on the porphyrin and a thiophene tin reagent. The preparation process is mild, purification is simple and convenient, the obtained polymer has high electrolyte solution solubility resistance and excellent electron conductivity, the technical problems that an organic micromolecule active material is prone to dissolution loss in an organic electrolyte, poor in conductivity and the like are effectively solved, and meanwhile the ion transmission capacity of the material is remarkably improved. The porphyrin framework polymer is used as a positive electrode active material and is matched with a metal sodium negative electrode and a NaPF6 carbonate electrolyte to assemble the battery, no obvious capacity fading is caused under 10A g <-1 > large current for about 7000 cycles, the specific capacity is high, the multiplying power and the long cycle performance are excellent, and the porphyrin framework polymer is suitable for a large-scale long-acting energy storage sodium ion battery.

The application provides a biodegradable wood pulp spunlace nonwoven material, which comprises the following raw materials: 60-70 wt% modified wood pulp fibers and 30-40 wt% lyocell fibers, wherein the modified wood pulp fibers are wood pulp fibers subjected to a beating process, then surface modified by a thiophene chloride derivative, and finally in-situ reaction prepared on the modified wood pulp fibers by using FeCl3 as a catalytic oxidant and a hydroxythiophene derivative as a polymerization monomer. The nonwoven material is composed of modified wood pulp fibers and lyocell fibers, and through beating and grinding of the wood pulp fibers and double treatment of polythiophene grafting, more hydrogen bond combination and complex entanglement are formed between the wood pulp fibers, the wood pulp fibers and the lyocell fibers, so as to overcome the problem of weak cohesion strength caused by the length limitation of the wood pulp fibers. The nonwoven material is soft and does not fall off, and has excellent water absorption and degradability.

The present disclosure relates to an oligomeric bio-based surfactant, a preparation method and application thereof, the oligomeric bio-based surfactant has the structure shown in formula 1 or formula 2: X1-X2 is selected from -(CH2) n Or a substituted or unsubstituted thiophene group with 4-10 carbon atoms, n represents the number of CH2, and n is selected from any integer from 0 to 12; Z1-Z5 are each independently selected from a disaccharide group, R1-R5 are each independently selected from -CH(CH3)-Y-COOH, wherein Y is selected from a saturated or unsaturated linear alkyl group with 9-19 carbon atoms. Compared with unmodified sophorolipids, the oligomeric bio-based surfactant of the present disclosure has a lower contact angle and higher wettability; at the same time, the molecule has a branched space structure and intramolecular sugar ring steric hindrance, which can promote the fusion between bubbles, exhibit low foam characteristics, and has good industrial application prospects as a green and efficient low-foaming bio-based cleaning agent.

The application provides a novel thiophene conjugated microporous polymer wave-absorbing material and a preparation method thereof, the wave-absorbing material is composed of a conjugated microporous polymer and a polypyrrole, the conjugated microporous polymer is formed by coupling polymerization of dibromothiophene monomers and borate monomers under the action of a palladium catalyst, and the polypyrrole is obtained by confined polymerization of the polypyrrole in the micropores of the conjugated microporous polymer, and has a reticular structure. The application introduces aromatic heterocyclic molecules on the conjugated microporous molecular skeleton, synthesizes a conjugated microporous polymer containing a thiophene group, introduces the polypyrrole into the nanopores of the conjugated microporous polymer by a confined polymerization method, prepares a novel thiophene conjugated microporous polymer, and then adjusts the ratio of the polypyrrole and the conjugated microporous polymer to obtain a novel conjugated microporous polymer wave-absorbing material with excellent electromagnetic wave-absorbing performance.

The present application provides a kind of derivative of dual-target inhibitor structure, the compound has the structure of formula (I) as shown in formula (I): formula (I) wherein, in formula (I) R1 It is selected from phenyl, 2-fluorophenyl, 3-fluorophenyl, 4-fluorophenyl, 4-chlorophenyl, 4-bromophenyl, 4-trifluoromethylphenyl, 4-methylphenyl, 4-ethylphenyl, 4-isopropylphenyl, 4-methoxyphenyl, 4-nitrophenyl, 4-methylsulfonylphenyl, thienyl, pyridyl, 3,5-difluorophenyl, 3,5-dichlorophenyl, 3,4,5-trifluorophenyl;R2 It is selected from H, halogen, trifluoromethyl, R2 It is in arbitrary position substitution position, single substitution or multiple substitution.The present application uses the derivative of the dual-target inhibitor structure for the use of the agent for preventing and treating plant pathogenic fungi.It can be seen that it has inhibitory effect on various plant fungi, and the inhibitory effect in sclerotinia is more significant.It has significant inhibitory effect on succinate dehydrogenase and chitin synthase activity.

A composition suitable for control of diseases caused by phytopathogens comprising (A) a compound of formula (I) wherein R1 is C1-C6 alkyl, C1-C6 haloalkyl, C1-C3 alkoxyC1-C3 alkyl, C3-C5 cycloalkyl, C2-C4 alkenyl, C2-C4 alkynyl; R2 is hydrogen, C1-C3 alkyl, C1-C3 alkoxy or C3-C5 cycloalkyl; R3 is C1-C6 alkyl; R4 is hydrogen or fluoro and A is 1,4-phenyl or 2,5-thienyl; and (B) at least one compound selected from compounds known for their fungicidal activity; and a method of controlling diseases on useful plants, especially rust diseases on soybeans or cereals.