13 results about "Phenoxy acetic acid" patented technology

The invention relates to the technical field of production of penicillin V potassium, and particularly discloses a preparation method of penicillin V potassium, which comprises the following steps: S1, under the catalysis of penicillin V acylase, enabling 6-APA and methyl phenoxyacetate to react, performing full-water-phase synthesis to obtain a penicillin V solution, filtering out the penicillin V acylase, adding dilute acid into filtrate, and crystallizing to obtain a penicillin V acid crystal; s2, dissolving the penicillin V acid crystal by using an organic solvent I to obtain a solution I, dissolving potassium isooctanoate by using an organic solvent II to obtain a solution II, mixing the solution I and the solution II, reacting and crystallizing to obtain a penicillin V potassium crystal, and filtering, washing and drying to obtain a penicillin V potassium finished product. According to the method, an enzyme method is used for replacing traditional fermentation and extraction methods to produce the penicillin V potassium, so that the process steps and energy consumption can be reduced, and the product quality is effectively improved.

This invention provides a pineapple plant growth regulator composition and its regulator, relating to the field of plant growth regulators. The pineapple plant growth regulator composition of this invention comprises the following raw materials in parts by weight: 30-50 parts of calcium diphenylureasulfonate, 15-20 parts of titanium citrate, 8-12 parts of N6-isopentenyladenine, 3-5 parts of 4-iodophenoxyacetic acid, and 10-20 parts of jasmonic acid. This invention uses calcium diphenylureasulfonate, titanium citrate, N6-isopentenyladenine, 4-iodophenoxyacetic acid, and jasmonic acid as core components to prepare a pineapple plant growth regulator composition, which not only significantly increases the single fruit weight of pineapple but also improves fruit quality and effectively reduces the incidence of watercore disease. The plant growth regulator of this invention can enhance the pineapple's defense response against watercore disease, while promoting growth, improving its stress resistance, and increasing fruit quality and yield, resulting in significant benefits in production.

The application provides a hybridoma cell strain secreting monoclone antibody of diquat and application thereof, and relates to the technical field of immune detection. The monoclone antibody secreted by the hybridoma cell strain has good sensitivity to diquat, the IC 50 1.13 ng / mL, so that the monoclone antibody can detect trace diquat. In addition, the monoclone antibody has no cross reaction to structural analogs of diquat, such as alachlor, acetochlor, butachlor, propanil, diquat and diquat, so that the monoclone antibody can accurately detect low concentration diquat.

The invention belongs to the technical field of mineral processing, and particularly relates to an octylphenoxyacetic acid compound as well as a preparation method and application thereof. The chemical structure of the octylphenoxyacetic acid compound provided by the invention contains ether groups, and the octylphenoxyacetic acid compound has stable low-temperature flotation performance, has the advantages of strong collecting capacity and good selectivity, and can obtain good beneficiation indexes when being used for oxidized ore flotation. When being matched with the fatty acid saponified matter and the oxidized paraffin soap for use, the high-efficiency collecting agent can also achieve the excellent effects of lower dosage and better collecting performance.

The utility model relates to the technical field of material lifting, and discloses a material lifting machine for phenoxyacetic acid production, which comprises a movable frame and a lifting cylinder, a lifting mechanism is arranged on the upper surface of the movable frame, and the lifting mechanism comprises a connecting frame, a fixing plate, a hydraulic cylinder, a U-shaped frame and a sliding bearing plate. And the bottom of the connecting frame is fixedly connected with the upper surface of the movable frame. According to the material elevator for phenoxyacetic acid production, through use of the connecting frame, the fixing plate, the hydraulic cylinder and the U-shaped frame, power of the fixing plate can drive a sliding bearing plate fixedly installed on the upper surface of the hydraulic cylinder to slide on the inner wall of a rectangular groove formed in the front face of the connecting frame, and the effect of driving the position of the lifting barrel to ascend and descend is achieved; and therefore, the problem that how to lift materials more safely is solved, the effect that the materials are more stably lifted can be achieved, the safety performance in practice is improved, and safer operation and use in practice are facilitated.

The invention discloses a synthetic method of sec-octyl phenoxyacetic acid, and relates to the technical field of organic synthesis and green chemistry. According to the synthesis method provided by the invention, phenol and sec-octanol are used as raw materials, and a one-pot method is adopted and comprises the following steps: a, putting phenol, sec-octanol, an etherification reagent, an ionic liquid catalyst, an etherification catalyst and an ionic liquid reaction medium into the same reactor, and sequentially carrying out an alkylation reaction and an etherification reaction at a certain temperature, the sec-octyl phenoxy acetic acid is obtained; and b, after the reaction is finished, cooling and filtering a reaction system, adding deionized water into filtrate for separation, collecting an organic phase, and carrying out recrystallization treatment to obtain the high-purity sec-octyl phenoxy acetic acid. According to the synthesis method disclosed by the invention, two reactions of alkylation and etherification are efficiently carried out in a compatible system, the total yield is far higher than that of a traditional method, the used catalyst and solvent can be recycled, and the whole technological process is basically free of acidic wastewater or salt-containing organic wastewater which is difficult to treat and is environment-friendly.

The invention discloses a preparation method of a 3-amino-2, 3-dihydrobenzofuran compound and a preparation method of the 3-amino-2, 3-dihydrobenzofuran compound. Amine and 2-formylphenoxyacetic acid are used as raw materials; ferric sulfate is used as a catalyst, and bis (2-picolyl) amine is used as a ligand. The preparation method comprises the following steps: adding 2-amino-2, 3-dihydrobenzofuran into an organic solution, firstly carrying out ultrasonic or heating stirring reaction, and then carrying out reaction under the illumination of LEDs (Light Emitting Diodes) lamps, so as to prepare a series of 3-amino-2, 3-dihydrobenzofuran compounds. The method has the advantages of mild reaction conditions, easily available initial raw materials, cheap catalyst, simple operation, low cost and the like. The two raw materials are common organic matters, the catalyst ferric sulfate is a common inorganic salt, and compared with a noble metal complex in a visible-light-driven photocatalyst, iron is a second abundant metal on the earth, so that the cost is low. The method adopts a one-pot method for reaction, and has the advantages of simplicity and convenience in operation, high yield and the like. The method is suitable for industrial production.

The invention discloses penicillin G acylase for synthesizing penicillin V and a mutant of the penicillin G acylase, which can catalyze a reaction of a substrate 6-APA and phenoxyacetate to generate the penicillin V, and provides a new way for enzymatic synthesis of the penicillin V.

The utility model discloses lopinavir intermediate 2, 6-dimethyl phenoxy acetic acid waste liquid and waste residue treatment equipment, which belongs to the technical field of chemical equipment and comprises a rack, a filtering unit, a driving mechanism and a separating unit. Wherein the liquid flows downwards to a filter box to be guided, discharged and collected, at the moment, a driving motor drives a scraping mechanism to conduct circumferential rotation through a first transmission shaft, scraping plates move upwards from gaps between intercepting plates to fish up waste residues, and when the scraping plates reach the position close to a material containing box, an air spraying pipe sprays air to a guide plate to spray the waste residues downwards into the material containing box; then a second transmission shaft drives a spiral pushing rod to operate, waste residues are pushed to a discharging pipe and discharged and collected, waste liquid, waste residues and the like collected at a filter box can be repeatedly fed from a feeding pipe so as to better filter and separate the waste liquid and waste residues, and the device has the advantages of being good in filtering effect, high in separation efficiency and higher in practicability.

The invention relates to the technical field of phenoxyacetic acid production, and particularly discloses a synthesis device for phenoxyacetic acid production, which comprises a synthesis tank, the synthesis tank comprises a tank body, a driving seat, a top cover and a base; a rotary feeding mechanism is arranged on the top cover, a second feeding port is formed in the rotary feeding mechanism, and a first feeding port is further formed in the top cover; a rotating table and a fixed table are arranged in the driving seat, the rotating table is rotationally connected with the driving seat, and the fixed table is fixedly connected with the driving seat; a feeding pipe is fixedly mounted in the center of the fixed table, one side of the feeding pipe is communicated with the first feeding port, and the other side of the feeding pipe is communicated with a discharging pipe in the tank body; and a feeding cylinder is arranged on the fixing table, one side of the feeding cylinder communicates with the second feeding port, and the other end of the feeding cylinder extends into the tank body. The feeding dispersity of the raw materials can be improved, so that different raw materials are in full contact, and the synthesis efficiency of phenoxyacetic acid is improved.

The application belongs to the field of biological medicine, and particularly relates to a hydrazine phenoxy ethyl acetate alpha-glucosidase inhibitor and a preparation method and application thereof. The inhibitor has the structure of formula (I). Compared with the prior art, the application further expands the inhibitor type with inhibitory effect on alpha-glucosidase activity, has excellent inhibitory activity, and has a simple preparation method, can be prepared on a large scale, and provides a new selection for different application requirements.

The invention discloses a method for synthesizing cyclohexyl acetate. The method uses phenoxyacetic acid ester and hydrogen as raw materials, performs a hydrogenation reaction in the presence of a catalyst, and generates the cyclohexyl acetate. The catalyst is a supported catalyst and includes a carrier and a metal carbide, wherein the metal carbide contains at least two metal elements selected from In, Co, Ni and Zn. The method has a fast reaction rate and a short reaction time, and the catalyst used in the reaction can significantly inhibit the activation of the C-O bond of phenoxyacetic acid ester, reduce the occurrence of side reactions, and improve the reaction selectivity of the hydrogenation reaction and the yield of the target product cyclohexyl acetate.

The application discloses a preparation method of 3-amino-2,3-dihydrobenzofuran compounds. Amine and 2-formylphenoxyacetic acid are used as raw materials; iron sulfate is used as a catalyst, and bis(2-pyridylmethyl)amine is used as a ligand. The mixture is added to an organic solution, and first ultrasonic or heating stirring reaction is carried out, then reaction is carried out under LED light, and a series of 3-amino-2,3-dihydrobenzofuran compounds are prepared. The method has the advantages of mild reaction condition, easy-to-obtain starting material, cheap catalyst, simple operation, low cost and the like. In the application, the two raw materials are common organic substances, and the catalyst iron sulfate is a common inorganic salt. Compared with noble metal complexes in visible light catalysts, iron is the second most abundant metal on the earth, and has low cost. The application uses a one-pot method for reaction, and has the advantages of simple operation, high yield and the like. The method is suitable for industrial production.